Raghuram Pannala

Raghuram Pannala
Sciegen Pharmaceuticals · Quality Assurance

Doctor of Philosophy

About

19
Publications
7,747
Reads
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110
Citations
Citations since 2016
5 Research Items
62 Citations
201620172018201920202021202202468101214
201620172018201920202021202202468101214
201620172018201920202021202202468101214
201620172018201920202021202202468101214

Publications

Publications (19)
Article
Full-text available
A simple, sensitive isocratic LC method has been developed for the quantitative determination of Efavirenz enantiomer in bulk drug, used for the HIV Aids. The developed method is applicable for the enantiomer determination. Efficient chromatographic separation was achieved on a Chiralpak-IA stationary phase with simple mobile phase combination deli...
Poster
Full-text available
USP RS Storage conditions for Lamivudine are evaluated
Technical Report
Full-text available
This technical report, developed by subject matter experts from the global pharmaceutical industry and regulatory agencies, summarizes data integrity risks and the best practices, including audit approaches, that can be utilized to develop a robust data integrity management system for laboratory settings with both manual and electronic processes th...
Article
Fast chiral liquid chromatographic methods are developed for the separation of bicalutamide and thalidomide enantiomers in bulk drug samples in an elution time of about 15 min. The chromatographic separation was carried out on various solvents using an amylose 3,5-dimethylphenylcarbamate immobilized onto silica gel (Chiralpak (R)-IA). The resolutio...
Article
Full-text available
This research article describes stability indicating fast liquid chromatographic method for determination of chromatographic purity and assay of Nizatidine as a alternate for two different methods for chromatographic purity and assay as given in USP Monograph and Ph.Eur Monograph. Proposed method is developed on Waters symmetry RP18 (50 × 4.6 mm),...
Article
Gas chromatography with headspace injection technique has been developed for the quantification of diethylamine, triethylamine and cyclopropylamine in active pharmaceutical ingredients. The chromatographic separation is achieved on dimethylpolysiloxane oil coated capillary column with flame ionization detector. GC run time was 15min employing progr...
Presentation
Full-text available
Statistical application , formulae , references useful for Pharmaceutical quality control and analytical lab
Article
The principle of the pharmacopoeial heavy metals test is detection and estimation of the metallic impurities colored by sulfide ion by comparison against lead standard. The test suffers from a loss of analytes upon ashing and from having varied responses for various metals. An inductively coupled plasma-optical emission spectroscopy (ICP-OES) for e...
Article
A simple, sensitive isocratic rapid resolution liquid chromatographic assay method has been developed for the quantitative determination of quetiapine hemifumarate in bulk active pharmaceutical ingredient, used for the treatment of schizophrenia. The developed method is also applicable for the process related impurities determination. Efficient chr...
Article
A simple, rapid and sensitive high performance liquid chromatographic method was developed for the separation and quantification of positional isomers of zafirlukast in bulk drugs and dosage forms using a chiral column. Elution time was 20min in normal phase mode and ultra violet detection was carried out at 240nm. Efficient separation was achieved...
Article
A simple, sensitive gradient RP-LC assay method has been developed for the quantitative determination of vardenafil HCl in bulk drug and in pharmaceutical dosage forms, used to treat erectile dysfunction. The developed method is also applicable for the related substances determination. Efficient chromatographic separation was achieved on a C18 stat...
Article
A simple, sensitive gradient RP-LC assay method has been developed for the quantitative determination of amtolmetin guacyl in bulk drug, used as anti-inflammatory drug. The developed method is also applicable for related substances determination. Efficient chromatographic separation was achieved on a C18 stationary phase with simple mobile phase co...
Presentation
Full-text available
Metallic impurities emergence
Article
In “Contact”movie Judie foster says thatmathematics is the universal language, numerical analysis is Statistics. There a number of SPC or SQC software available if not MSEXCEL but to utilize them to max or comfortably requires some basic understanding.The following is a summary of situations which we come around commonly in pharmaceutical industry....
Article
Full-text available
Degradation pathway for pitavastatin calcium is established as per ICH recommendations by validated and stability indicating reverse phase liquid chromatographic method. Pitavastatin is subjected to stress condi-tions of acid, base, oxidation, thermal and photolysis. Significant degradation is observed in acid and base stress conditions. Four impur...

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