Manas Kanti Deb

• M.Sc., Ph.D.
• Professor (Full) at Pandit Ravishankar Shukla University

This study explores the use of disposable pencil electrodes in cyclic voltammetry (CV) and compares their performance to traditional glassy carbon electrodes. We conducted CV tests to evaluate different pencil grades, HB, 2B, 4B, 6B, 8B, and 10B along with glassy carbon to assess response time, peak current, and electrode stability during the analy...

The current study's goal was to identify the various functional groups found in chrysanthemums using FTIR Spectroscopy. The FTIR spectrometer identifies 4000 series, with a scan range of 4,000–400 cm-1, was used to perform the FTIR analysis. The presence of distinct peak values with various useful mixtures of functional groups, including hydroxy gr...

A novel composite of Fe-metal organic framework (Fe-MOF) and polyaniline (PANI) was synthesized using a cost-effective and rapid hydrothermal method. Structural characterization confirmed the successful incorporation of granular PANI over the Fe-MOF surface, which was examined through X-ray diffraction (XRD), scanning electron microscopy (SEM), and...

The goal of this work was to assess the competence of organic hydrophobic resin bound gold nanocomposites (OH/R-AuNCs) for detection of pymetrozine insecticide from vegetable samples employing surface-enhanced/attenuated total reflectance-Fourier transform infrared (SE/ATR-FTIR) spectroscopy. The adsorption isotherm models, including the Langmuir,...

Nitrogen-doped carbon quantum dots (N-CQDs) exhibit unique fluorescence properties and are considered one of the best candidates for the development of fluorescence-based sensors for the detection of many analytes. In this work, a smartphone-assisted fluorescent sensor has been developed using N-CQDs and MnO2 nanotubes (MnO2 NTs) for the detection...

The worldwide concern for environmental pollution, climate change and health hazards caused by various pollutants has significantly increased in the recent past. Various techniques have so far been employed for sensing applications of such organic as well as inorganic pollutants. Amongst the different techniques, surface enhanced infrared spectrosc...

A novel composite electrode material has been synthesized using in-situ chemical polymerization of aniline over the surface of rice straw-derived carbon (RSC). The detailed structural characterization validates the effective incorporation of granular polyaniline (PANI) over the RSC surface. The supercapacitor performance of the RSC@PANI electrode w...

During the summer and winter periods of 2019–2020, we conducted sampling of fine mode ambient aerosols in the western Himalayan glacial region (WHR; Thajiwas glacier, 2799 m asl), central Himalayan glacial region (CHR; Gomukh glacier, 3415 m asl), and eastern Himalayan glacial region (EHR; Zemu glacier, 2700 m asl). We evaluated the aerosol optical...

Multicolor emissive nitrogen-doped carbon quantum dots (CQDs) were synthesized by the hydrothermal method and characterized using spectroscopic and electron microscopic techniques. Forster resonance energy transfer (FRET) between CQDs and gold nanorods (AuNRs) has been investigated that occurs due to the distinctive overlap of transverse and longit...

Herein, a rapid, precise alpha-cyclodextrin (α-CD) based gold nanoparticles (AuNPs) for selective detection of malathion pesticides has been reported. These are organophosphorus pesticides (OPPs), that can cause a neurological disease by inhibiting the activity of acetylcholinesterase (AChE). It is important to exploit a quick and sensitive approac...

N, S co-doped graphene (NSG) has been synthesized by using graphene oxide, cyanamide and sodium sulphide as a source of C, N and S respectively. Due to its excellent electronic properties and stability, NSG has been used as an adsorbent for methylene blue (MB) removal from aqueous solution. Adsorption efficiencies of Graphene, N-doped graphene, S-d...

The present work reported a novel strategy to construct supported cationic-polystyrene-resin-bound silver nanocomposites for enhanced catalytic reduction of 4-nitrophenol in an aqueous medium. The Fourier transform infrared spectroscopy (FTIR) was used as a model instrument for the study of catalytic reduction of 4-nitrophenol using cationic-polyst...

Toxic gaseous organic air pollutants such as benzene, toluene, ethylbenzene, and xylene isomers (m, p, and o-x) (BTEX) are considered hazardous due to its adverse impacts on human health and on climate change. This review identifies the major research questions addressed so far and the research gap in research articles, published between 2001 and 2...

Eleven potentially toxic metal(loid)s (Al, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn), proven source markers of mineral based coal-fired industrial emissions and vehicular exhausts, were analysed using the four steps sequential extraction method to evaluate metal(loid)s concentration, in total and fractions of bioavailable and non-bioavailable for...

We report a novel UV-Vis spectrophotometry combined with micro Soxhlet extraction method for the detection of CPS pesticide in fruits and vegetables based on alpha-cyclodextrin capped silver nanoparticles (AgNPs/α-CD). Recently, CPS pesticide has been used as a disinfectant in post-harvesting agriculture to prevent or inhibition of recent outbreaks...

Biophenols (BPs) are one of the natural phytochemical products, found majorly in fruits, cereals, vegetables and beverages. BPs has gotten a lot of press in recent years due to their abundance in nature as well as biological activities. Furthermore, they are potential targets for food and pharmaceutical industries. Many extraction techniques are pr...

This review describes the synthesis of noble metal nanoparticles, nanocarbons, conducting polymers, and nanocomposites. The integration of these nanomaterials on the flexible matrix (e.g. paper, cloth and carbon paper, polyethylene terephthalate) and non-flexible substrate (glass and glassy carbon electrodes) using direct-writing, inkjet printing,...

Heavy metals are a group of metals and metalloids that have relatively high density and are toxic even at ppb levels. The excess intake of heavy metals in human bodies though the environment may cause various humans health problems. Analytical approaches of some selected toxic heavy metals in the environment and their socio-environmental impacts ar...

A new sensitive spectrophotometric method for the determination of glyphosate herbicide in environmental and agricultural samples is developed. The reaction is based on diazotization followed by coupling of glyphosate with p-dimethyl amino benzaldehyde. The resulted complex absorption spectra was observed at λmax = 420 nm. The effects of other meta...

Herein, a user-friendly and portable smartphone-integrated printed-paper sensor was designed with [email protected] nanoparticles (NPs) for on-site monitoring of dimethoate pesticide in food samples, and the results obtained are compared with those obtained by UV-vis spectrophotometry. The working principle for identification of dimethoate pesticid...

The emergence and rapid spread of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), a potentially fatal disease, is swiftly leading to public health crises worldwide. The origin of SARS-CoV-2 infection was first reported in people exposed to a seafood market in Wuhan City, China in December...

This paper describes the sensing application of citrate functionalized gold nanoparticles (AuNPs) employing for the determination of L-cysteine in food and water samples. It is established with diffuse reflectance Fourier transform infrared (DRS-FTIR) spectroscopic analysis. The disappearance of the thiol (-SH) band in the FTIR spectra and the shif...

This paper presents development of a simple, rapid, and precise analytical method for determination of sulfur dioxide in ambient air by a gas to solid-phase conversion method. Sulfur dioxide is determined in the form of sulfite (SO 3 2-) because the absorbing reagent, potassium tetrachloromercurate (TCM), used in this method absorbs sulfur dioxide...

In the present work, we report the adsorption of the methylene blue (MB) dye from an aqueous solution employing resin immobilized gold nanocomposites (R-AuNCs) assisted surface-enhanced infrared absorption (SEIRA) spectroscopy. The appropriate adsorption isotherm models, including the Langmuir, Freundlich, and Temkin are tested to reveal the intera...

In South Asia, combustion of solid fuel for residential heating and cooking is a major emission source of particulate-phase polycyclic aromatic hydrocarbons (p-PAHs), a potent carcinogen for human health. The emission factors (EFs) and source diagnostic ratios of PAHs currently used in regional inventory models have been estimated from controlled l...

We report a simple and cost-effective paper-based and colorimetric dual-mode detection of As(iii) and Pb(ii) based on glucose-functionalized gold nanoparticles under optimized conditions. The paper-based detection of As(iii) and Pb(ii) is based on the change in the signal intensity of AuNPs/Glu fabricated on a paper substrate after the deposition o...

The present work reported is a simple and selective method for the colorimetrical detection ofl-cysteine inLens culinaris(or lentils) using Au-Ag core-shell (Au core Ag shell) composite nanoparticles as a chemical probe. The phenomenon is based on the color change of composite nanoparticles from yellowish brown to light blue, followed by a shift of...

Concentrations of trace elements (Al, B, As, Be, Cd, Ba, Co, Cu, Fe, Cr, Sb, Ni, Li, Sn, Mn, Zn, V and Se) were determined in 160 groundwater samples, collected during pre-monsoon (PRM) and post-monsoon (POM) period (2017) in the tribal belt of Bastar, central India, using inductive coupled plasma mass spectrometry (ICP-MS). The concentrations of A...

The purpose of the present research was to design a method for the colorimetric determination of L-cysteine. We have employed PVA capped gold nanoparticles (GNPs) as a probe. The as-synthesized GNPs were further characterized by UV-vis absorption spectroscopy, transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR), d...

We report an inkjet-printed paper based colorimetric sensor with silver nanoparticles (AgNPs) using smartphone and color detector App for on-site determination of mercuric ion (Hg²⁺) from environmental water samples. The AgNPs printed on Whatman filter paper (No. 1) is employed for detection of Hg²⁺ which is reliant on the color change of NPs from...

A new, simple, rapid and precise novel hyphenated diffuse reflectance-Fourier transform infrared spectroscopy (DRS-FTIR) technique for the simultaneous determination of the most frequently used cationic surfactants (CS+) i.e. cetyltrimethylammonium bromide (CTAB) and anionic surfactant (AS-) i.e. sodium dodecyl sulphate (SDS) in domestic, sewage an...

Perchlorate anion (ClO4-) has been found in environmental and biological systems such as ground water, surface water, soil, fruit, dairy milk, breast milk, plant tissues, beverages, urine and blood etc. High amount of perchlorate leads to toxicity by inhibiting the iodide uptake in sodium-iodide symporter (NIS) protein system; therefore thyroid hor...

Samples of ambient aerosols were collected at an urban site of eastern central India from monsoon to summer 2016-17 for the characterization of biogenic secondary organic aerosols (BSOA). The BSOA tracers derived from isoprene, α/β-pinene and β-caryophyllene in size-distributed aerosols were studied. Concentrations of total SOAI (Isoprene secondary...

An inkjet-printed paper electrode with gold nanoparticle-ink as a non-enzymatic electrochemical sensor for detection of glucose in blood serum is reported.

The exponential rise in coronavirus infected patients worldwide have overwhelmed the medical industry. It necessitates an effective strategy for controlling and streamlining the diagnosis and treatment procedures. Many researchers are, therefore, striving to develop effective vaccines and therapies for rapid detection and treatment of this global d...

Surface-enhanced infrared absorption spectroscopy (SEIRS) with dry-state method was established for ultra sensitive detection of glutathione using citrate functionalized silver nanoparticles (AgNPs) in human biological blood and serum samples. The signal intensity of glutathione was enhanced due to the hot-spots created by the aggregation of AgNPs...

Ion exchange resins (IERs) are solid poly-electrolytes which have both sorption and exchange capacity of several organic compounds. They have the power to separate ionic and non-ionic substances with the surrounding medium. The drug materials or substances are adsorbed on resin, which is commonly known as resinate, these features of IERs have usefu...

Herein, we report a KBr-impregnated paper substrate as a sample probe to enhance the attenuated total reflection-Fourier transform infrared (ATR-FTIR) signal strength of anionic surfactants (AS) and non-ionic surfactants (NS) in an aqueous solution. The mechanism for the sensing of AS and NS is based on the strong interaction of surfactants with th...

Ion exchange resins (IERs) or polymers are cross linked, high molecular weight, water insoluble, polyelectrolytes. They have specific features like cross-linking, ion exchange capacity, particle size, swelling, porosity and acid base strength. Generally, resins have suitably substituted acidic groups like sulfonic and carboxylic groups attached for...

The review initiates with current state of information on the atmospheric reaction mechanism of biogenic volatile organic compounds (BVOCs) and its fate in the atmosphere. The plants release BVOCs, i.e., isoprene, monoterpenes, and sesquiterpenes, which form secondary organic aerosols (SOA) upon oxidation. These oxidation reactions are primarily in...

Surface active agents (SAAs) are a class of compounds, which find various applications in different fields of human activities. Surfactants are generally amphiphilic molecules, which are strongly adsorbed at interfaces between the phases. Surfactants windily used as detergency, emulsion, stabilizing and dispersing agents have led to the discharge o...

The emergence and rapid spread of novel coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as a potentially fatal disease is swiftly evolving public health crises worldwide. The origin of SARS-CoV-2 infection was first reported in people exposed to wet animal market in Wuhan City, China in December...

To study the influence of fireworks in atmospheric aerosols and their effect on health during the extreme firework days, fireworks tracer metals and carbonaceous species in size-distributed aerosols in the lower troposphere at Raipur in eastern central India were investigated during the 2018 Deepawali festival. Aerosol samples were collected, befor...

Atmospheric PM2.5 pollution, has shown potential impact on the human health in general, thus it requires to look into the chemical characteristics of PM2.5 masses for designing effective policies to reduce health risks amongst public under exposure. The study carried out, here, has presented the ambient PM2.5 concentrations, concentrations of chemi...

Development of low-cost paper based disposable electrodes printed with silver nano-ink using desktop inkjet printer is reported in this work. A stable nano-ink was prepared by dissolving 3% silver nanoparticles (AgNPs) capped with polyvinylpyrrolidone (PVP) in ethanol as a dispersing solvent. Highly stable silver nano-ink with surface tension of 21...

The use of L-cysteine modified silver nanoparticles (Cys-capped AgNPs) as a colorimetric probe for determination of vitamin B1 (thiamine) is described in the present work. This method is based on the measurement of red shift of localized surface plasmon resonance (LSPR) band of Cys-capped AgNPs in the region of 200-800 nm. The color of Cys-capped A...

We report a smartphone–paper-based sensor impregnated with cetyltrimethylammonium bromide modified silver nanoparticles (AgNPs/CTAB) for determination of Fe3+ in water and blood plasma samples. The methodology for determination of Fe3+ is based on the change in signal intensity of AgNPs/CTAB fabricated on a paper substrate after the deposition of a...

Macrophytes (aquatic plants or hydrophytes) are sources of food and oxygen for aquatics (e.g., fish, invertebrates) and act as bioindicators for the assessment of environmental conditions in water reservoirs. This articles describes the bioaccumulation pattern of different elements (P, S, Cl, K, Rb, Mg, Ca, Sr, Ba, Ti, Cr, Mn, Fe, Co, Zn, Mo, As, S...

Size distributed aerosols are collected from October 2016 to July 2017 at eastern central India. This work for the first time investigates the possibilities of long-range transport and inhalation dose of particulate matters in different size at study site. During winter the aerosols were enriched in fine mode particles size however, they are more e...

A novel, facile, and low-cost method was developed for determination of cetyltrimethylammonium (CTA +) cationic surfactant in water samples using diffuse reflectance Fourier transform IR (FTIR) spectroscopy and colorimetry. Cetyltrimethylammonium bromide was chosen as a model compound to demonstrate the optimization of the method for determination...

A novel, facile, and low-cost method was developed for determination of cetyltrimethylammonium (CTA+) cationic surfactant in water samples using diffuse reflectance Fourier transform IR (FTIR) spectroscopy and colorimetry. Cetyltrimethylammonium bromide was chosen as a model compound to demonstrate the optimization of the method for determination o...

Aims: The objective of the present work is the investigation of the physicochemical characteristics of seed coats and kernels from 24 species with medicinal and food applications. Methodology: Seeds from 24 species (2 herbs, 11 vines and 11 trees), belonging to 13 families, were sampled in Raipur (India) in 2017. The collected seeds were dried and...

The use of tartrazine as an ingredient in foodstuffs is general trait, added for reasons such as enhancing the color and making food attractive and appetizing. Despite of food safety standards set by various countries, still, the evidence of links between tartrazine and its hazardous health effects fosters the necessity to regularly monitor the lev...

Aims: To study the spectral and thermal characteristics, and the oil, starch, polyphenol and mineral contents of seeds and leaves from three Sapotaceae species, provided that trees and shrubs of this family are an important source of nutritional and functional products. Methodology: Leaves and seeds from three Sapotaceae plants, namely Moa tree (M...

A novel surface enhanced infra-red spectroscopic (SEIRS) method with silver nanoparticles (AgNPs) assisted single drop microextraction (SDME) was developed for detection of total mixed quaternary ammonium cationic surfactants (QACS) in water samples. The SDME was used to separate and preconcentrate QACS from water samples into the organic solvent c...

Silver nanoparticles (AgNPs) functionalized with glutamic acid (GA) was used as a biochemical sensing probe in colorimetry for detection of lysozyme protein in milk samples. The method is based on the color change of AgNPs/GA from yellow to reddish-yellow differentiated with naked eyes for qualitative determination and red shift of localized surfac...

The following empirical research undertakes the implementation of the signals obtained via an Electrooculography (EOG) into the design for a simple, effective and low-cost microcontroller system. The process was extended research, to demonstrate and allow an incapacitated individual to control eight individual devices, by collecting and evaluating...

Abstract Surface active agents (SAAs) are a class of compounds, which is used in variety of products such as detergents, fabric softeners, soaps, paints, adhesives, inks and anti-fogs. After the use of these products containing surfactants are disposed in water reservoirs. The separation and determination of surfactants from complex matrices become...

Size-segregated aerosol samples collected from a rural site (Rajim: 20˚59′N and 81˚55′E) in eastern central India during the winter of 2011 were analyzed for anhydrosugars, sugar alcohols and primary sugars to better understand their potential sources and formation. Anhydrosugars showed the predominance of levoglucosan, whereas sugar alcohol showed...

Emission factors (EFs) of PM2.5, carbon fractions, major ionic (K⁺, Ca²⁺, NH4⁺, SO4²⁻, NO3⁻ and Cl⁻) and elemental (Al, Cr, Cu and Fe) species from combustion of commonly used household solid fuel were determined in 10 different states in India during cooking practices. The study involved sampling during actual household cooking involving use of a...

Bare silver nanoparticles were employed as a chemical sensor for selective detection of diazinon pesticide in fruit and vegetable samples. The sensing mechanism for detection of diazinon is based on the color change of AgNPs from yellow to pinkish-red followed by the red shift of LSPR absorption band in UV–Vis region after the addition of analyte i...

Silver nanoparticles modified with poly(vinyl alcohol) (AgNP–PVA) were prepared by the reduction of silver ions with ascorbic acid. The concentrations of AgNPs, type of solvent and solvent ratio were optimized for the preparation of silver nano-ink to obtain a better conductive surface (low resistance). Different substrates such as glass, poly(viny...

We report simple and selective method for detection of vitamins B1 and B6 in brown and white rice samples using localized surface plasmon resonance (LSPR) of sucrose capped gold nanoparticles (AuNPs) as a chemical sensor colorimetrically. Here, detection is based on the color change of AuNPs from pink to blue followed by a red shift of LSPR absorpt...

We report a novel methyl orange paired microextraction (MOP‐ME) and diffuse reflectance‐Fourier transform infrared (DRS‐FTIR) spectral monitoring for improved signal strength of total mixed cationic surfactants (CS⁺) for its quantification in real water samples. To the best of our knowledge, this is the first report that describes the rapid quantit...

Groundwater resource in this few decades has been challenging in India due to intense agricultural, industrial and mining activities which make groundwater quality exposed to contaminants. This review article deals with results of groundwater quality monitoring and assessment works conducted in India during the year 2000 to 2015. Previously publish...

To develop coarse particle (PM10-2.5, 2.5 to 10μm) chemical source profiles, real-world source sampling from four domestic cooking and seven industrial processing facilities were carried out in "Raipur-Bhilai" of Central India. Collected samples were analysed for 32 chemical species including 21 elements (Al, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg,...

USEPA’s UNMIX, positive matrix factorization (PMF) and effective variance-chemical mass balance (EV-CMB) receptor models were applied to chemically speciated profiles of 125 indoor PM2.5 measurements, sampled longitudinally during 2012–2013 in low-income group households of Central India which uses solid fuels for cooking practices. Three step sour...

A simple, rapid and green ion-pair single-drop microextraction procedure followed by attenuated total reflectance-Fourier transform infrared technique has been developed for the analysis of phosphate in water samples. This method is based on the extraction of the phosphate-cetyltrimethylammonium bromide ion-pair by the singledrop extraction procedu...

. Size fractionated atmospheric aerosols were collected using cascade impactor sampler on quartz filter substrate during October 2015 to February 2016 in campus of Pt Ravishankar Shukla University of Raipur Chhattisgarh. The size of aerosol particles is of crucial importance to several processes in the atmosphere. The relative concentrations in bot...

One out of every three Indians use biomass fuels such as wood, animal dung and coal cake, crop residues as their primary domestic energy source. About 23 and 61 % of urban and rural Indian households, respectively, rely on traditional stoves (Chullah) for cooking practices. Household air pollution contains solid fuel burning emissions prominently,...

In this work, comparative studies of the distribution, composition and sources of organics (n-alkanes, lignin and resin products, sterols, phthalate esters and polycyclic aromatic hydrocarbons) associated to PM10 in the residential, highway and industrial areas of the most polluted city of central India, Raipur city is described. The mean concentra...

PM2.5 concentrations were measured in residential indoor environment in slums of central India during 2012–2013. In addition, a suite of chemical components including metals (Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, Pb, Mo, Se, Sb, Na, Mg, K and Hg), ions (Na+, Mg2+, K+, Ca2+, F−, Cl−, NH4 +, NO3 − and SO4 2−) and carbon (OC and EC) were a...

Perchlorate (ClO₄(−)) is an environmental pollutant thataffects human health. Perchlorate acts as a competitive inhibitor of iodine uptake in the thyroid gland (sodium–iodide symporter inhibitor); thus, its determination is important for public health concerns. Water and milk constitute a significant portion of the human diet. Because regular intak...

The sources and formation processes of dicarboxylic acids are still under investigation. Size-segregated aerosol (9-sizes) samples collected in the urban site (Raipur: 21.2°N and 82.3°E) in eastern central India during summer of 2013 were measured for water-soluble diacids (C2-C12), ω-oxoacids (ωC2-ωC9), α-dicarbonyls (C2-C3), and inorganic ions to...

This work demonstrates a simple, rapid and convenient method based on Fourier transform infrared (FTIR) spectroscopy combined with single–drop micro-extraction (SDME) and chemometrics for the analysis of tungstate. Nanogram quantities of tungstate using N¹–hydroxy–N¹, N²–diphenylbenzamidine (HDPBA), were quantitatively extracted into chloroform at...

A simple and convenient assay based on single drop microextraction with infrared spectroscopy is reported for the determination of selenium. The extraction conditions were carefully optimized and selenium was preconcentrated via single drop microextraction in 1, 2-dichloroethane containing N–hydroxy–N–phenyl–N′–(o–tolyl) benzimidamide. The method i...

A new cloud point extraction (CPE) method for the determination of hexavalent chromium i.e. Cr(VI) in food samples is established with subsequent diffuse reflectance-Fourier transform infrared (DRS-FTIR) analysis. The method demonstrates enrichment of Cr(VI) after its complexation with 1,5-diphenylcarbazide. The reddish-violet complex formed showed...

The size distributions of aerosols can provide evidences for their sources and formation processes in the atmosphere. Size-segregated aerosols (9-sizes) were collected in urban site (Raipur: 21.2°N and 82.3°E) in central India during winter of 2012–2013. The samples were analyzed for dicarboxylic acids (C2-C12), ω-oxocarboxylic acids (ωC2-ωC9), pyr...

This paper contributes for the first time the seasonal mass size distribution of atmospheric aerosols and their possible health implications in a rural area of eastern central India. Size-segregated atmospheric aerosols were collected from July 2012 to June 2013 at rural site near Mahanadi riverside basin of Rajim (20° 59′N and 81°55′E), Chhattisga...

The adsorption of phenol from aqueous solution was carried out by using alginate-stabilized silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) beads as adsorbents. The resulting AgNPs and AuNPs were characterized by scanning electron microscope, UV-visible spectroscopy and Fourier transform infrared spectroscopy. Batch adsorption studies h...

A novel hyphenated single–drop micro–extraction (SDME) diffuse–reflectance Fourier–transform infrared spectroscopy (DRS–FTIR) were employed for quantification of hexavalent molybdenum, i.e., Mo(VI) in human blood serum and urine. Mo(VI) was extracted as Mo(VI):HDPBA complex in single–drop of dichloroethane solution of N1–hydroxy–N1,N2–diphenylbenza...

ABSTRACT This paper describes results from a detailed source profile characterization study conducted in Raipur, India to prepare source profiles for traffic and dust-related sources. A companion paper has been published with results for a range of other combustion sources. PM2.5 samples were analyzed for mass, elements (Al, As, Ca, Cd, Co, Cr, Cu,...

Size-segregated aerosol samples were collected from the rural area of eastern central India throughout the intermittent rice straw burning campaign during May and June in 2013. We found higher concentrations of particulate matters (PMs) during field burning events. The average concentrations of PM10 (RSPM, Dp ≤ 10 μm), PM2.5–10 (coarse, 2.5 μm < Dp...

In this study we used biomarkers for analyzing the impact of fungal spore in ambient aerosols collected from rural area of eastern central Indian region during winter 2011.Mannitol and arabitol were used as tracer to estimate the impact of fungal activity in the ambient aerosols in our study site. We present the first estimates for the impact of fu...