Rodrigo Álvarez-Ruiz

Rodrigo Álvarez-Ruiz
Purdue University | Purdue · Department of Agronomy

Phd in Environmental Chemistry

About

16
Publications
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276
Citations
Introduction
My thesis is versed in the analysis of organic pollutants in environmental matrices (especially water and biota) employing LC-MS techniques. What includes the development of extraction and analytical procedures, monitoring, environmental and health risk assessment and bioaccumulation studies.

Publications

Publications (16)
Article
Water bodies cover approximately 70 % of the earth´s surface, making them ecosystems with a high environmental value and the habitat for numerous species of flora and fauna. Emerging pollutants (EPs) are ubiquitous anthropogenic compounds of environmental concern that can be found at different concentration levels in matrices such as sediment, wate...
Article
This study assesses the extraction of 11 pharmaceuticals, 5 pesticides, 5 perfluoroalkyl substances and 2 illicit drugs in haemolymph from (Mytilus Galloprovincialis). Four extraction procedures using Phree™ Phospholipid Removal cartridges were tested using different volumes of methanol (400 μl and 600 μl) and acetonitrile (300 μl and 450 μl). The...
Article
Coastal environments are heavily influenced by human activities. Chemical substances considered as emerging contaminants (ECs) are one of the most important indicators of the anthropic influence on the environment, and they have recently shown to interact with microplastics (MPs). Mussels are suitable for in-lab bioacumulation studies providing ins...
Article
Full-text available
The profiling of emerging organic pollutants present in sludge and generated during wastewater treatment is much more limited than in water. This is mainly due to the difficulty of sludge analysis because of its high content of organic matter and interfering compounds. In this study, a generic extraction method using a mixture of buffered water (pH...
Poster
Full-text available
Anguilla anguilla (Linnaeus, 1758) species is critically endangered. The impacts of anthropogenic origin, including the presence of contaminants in the marine ecosystem, affect the stages of the eel's life cycle. Studying the occurrence of these contaminants in eels it is possible to assess their exposition and safeguard them. This species has also...
Article
This study aimed to develop multi-residue methods for the extraction of organic pollutants in mussels (Mytilus galloprovincialis), including 11 pharmaceuticals, 5 pesticides, 5 perfluoroalkyl substances (PFASs) and 2 illicit drugs. The combination of 4 different QuEChERS methods and 12 clean-ups (a total of 44 combinations) was tested. QuEChERS inc...
Article
Full-text available
One of the aspects considered about the presence of contaminants in the aquatic ecosystems is their possible effect on critically endangered species, as the case of European eel, Anguilla anguilla. However, there is a lack of analytical methods to determine these contaminants due to the complexity of eel matrix (contains 5-20 % of lipids and 5-15 %...
Article
Full-text available
The data set presents the occurrence of 59 currently used pesticides (CUPs) and 33 pharmaceuticals and personal care products (PPCPs), from wetland areas, in Saudi Arabia, impacted by wastewater discharge. Wetlands are valuable ecosystems, but are very fragile and easily affected by anthropogenic pressure [1-6]. The occurrence of organic contaminan...
Article
Two solid-phase extraction methods were systematically studied to determine 32 pharmaceuticals and personal care products in water and sediments by ultrahigh-performance liquid chromatography-tandem mass spectrometry. One involves HLB cartridges activated with sodium dodecyl sulfate before the passage of the sample to form an ion pair with cationic...
Article
This study assess the presence of pharmaceutical and personal care products (PPCPs) and pesticides in different environmental compartments and microplastics in water of a characteristic lagoon wetland in Saudi Arabia to establish the transport, accumulation and fate of these pollutants in a water-stressed area under high anthropogenic pressure. In...
Article
The aquatic ecosystems are dynamic environments often affected directly or indirectly by a myriad of anthropogenic contaminants that need to be properly identified. In this study, liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QqTOF-MS) suspected-screening was applied to mussels and riverine sediment both, non-spiked and spik...
Article
In arid and semi-arid areas the use of treated wastewater for crop irrigation and other agricultural practices, such as the use of pesticides, increase the number of emerging contaminants (ECs) in crops. Hazards of these practices to human being are largely unknown since there are few studies yet covering a short range of compounds and most of them...
Article
A liquid chromatography quadruple time-of-flight mass spectrometry (LC–QqTOF-MS/MS) method was developed for simultaneous quantitative analysis of ibuprofen (IBU), 1- and 2-hydroxyibuprofen (1-OH IBU and 2-OH IBU), and carboxyibuprofen (CBX IBU) while preserving the ability of the instrument to get precursor and product ion mass spectra of non-targ...

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Projects

Projects (2)
Project
ANTROPOCEN @ develops intelligent tools for the sustainable management of the environment that support efficient management change in the use of resources and low carbon emissions, generating a system of support of decision-making, easily applicable in management programs and to act for the benefit of its citizens, companies and communities. This product of the study, in line with the European Digital Agenda, develop and exploit the opportunities provided by the progress of technologies of information and communication (technology ICT)
Project
Innovative approach that integrates the concepts of natural capital, flow of ecosystem services derived from this capital, contaminants, ecological risk assessment, environmentalomics, environmental fingerprint, economic analysis and participatory process in conservation and environmental restoration programs