scholarly journals Predictive Elution Window Stretching and Shifting as a Generic Search Strategy for Automated Method Development for Liquid Chromatography

2012 ◽  
Vol 84 (18) ◽  
pp. 7823-7830 ◽  
Author(s):  
Eva Tyteca ◽  
Anuschka Liekens ◽  
David Clicq ◽  
Ameriga Fanigliulo ◽  
Benjamin Debrus ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Method Development ◽  
Search Strategy ◽  
Automated Method

A Comprehensive Review on Importance and Quantitation of Atypical Antipsychotic Drugs and their Active Metabolites in Commercial Dosage Forms

2020 ◽  
Vol 16 (8) ◽  
pp. 989-1019
Author(s):  
Habibur Rahman ◽  
S.K. Manirul Haque ◽  
Masoom Raza Siddiqui
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Liquid Chromatography ◽  
Antipsychotic Drugs ◽  
Method Development ◽  
Early Death ◽  
Dosage Forms ◽  
Gas Chromatography Mass Spectrometry ◽  
Active Metabolites ◽  
Chromatography Mass Spectrometry

Background: Schizophrenia is a severe mental illness that affects more than twenty-one million people throughout the world. Schizophrenia also causes early death. Schizophrenia and other related psychotic ailments are controlled by the prescription of antipsychotic drugs, which act by blocking certain chemical receptors in the brain and thus relieves the symptoms of psychotic disorder. These drugs are present in the different dosage forms in the market and provided in a certain amount as per the need of the patients. Objective: Since such medications treat mental disorders, it is very important to have a perfect and accurate dose so that the risk factor is not affected by a higher or lower dose, which is not sufficient for the treatment. For accurate assay of these kinds of drugs, different analytical methods were developed ranging from older spectrophotometric techniques to latest hyphenated methods. Results: The current review highlights the role of different analytical techniques that were employed in the determination and identification of antipsychotic drugs and their metabolites. Techniques such as spectrophotometry, fluorimetry, liquid chromatography, liquid chromatography-mass spectrometry, gas chromatography, and gas chromatography-mass spectrometry employed in the method development of such antipsychotic drugs were reported in the review. Different metabolites, identified using the hyphenated techniques, were also mentioned in the review. The synthesis pathways of few of the metabolites were mentioned. Conclusion: The review summarizes the analyses of different antipsychotic drugs and their metabolites. A brief introduction of illnesses and their symptoms and possible medications were highlighted. Synthesis pathways of the associated metabolites were also mentioned.

scholarly journals The pathway through LC-MS method development: in-house or ready-to-use kit-based methods?

2020 ◽  
Vol 58 (6) ◽  
pp. 1002-1009 ◽  
Author(s):  
Caroline Le Goff ◽  
Jordi Farre-Segura ◽  
Violeta Stojkovic ◽  
Patrice Dufour ◽  
Stéphanie Peeters ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Method Development ◽  
Clinical Laboratory ◽  
Cross Reactivity ◽  
Tandem Mass ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass

AbstractHistorically, the determination of low concentration analytes was initially made possible by the development of rapid and easy-to-perform immunoassays (IAs). Unfortunately, typical problems inherent to IA technologies rapidly appeared (e.g. elevated cost, cross-reactivity, lot-to-lot variability, etc.). In turn, liquid chromatography tandem mass spectrometry (LC-MS/MS) methods are sensitive and specific enough for such analyses. Therefore, they would seem to be the most promising candidates to replace IAs. There are two main choices when implementing a new LC-MS/MS method in a clinical laboratory: (1) Developing an in-house method or (2) purchasing ready-to-use kits. In this paper, we discuss some of the respective advantages, disadvantages and mandatory requirements of each choice. Additionally, we also share our experiences when developing an in-house method for cortisol determination and the implementation of an “ready-to-use” (RTU) kit for steroids analysis.

Method development and validation for melamine and its derivatives in rice concentrates by liquid chromatography. Application to animal feed samples

2008 ◽  
Vol 392 (3) ◽  
pp. 523-531 ◽  
Author(s):  
Roberto Muñiz-Valencia ◽  
Silvia G. Ceballos-Magaña ◽  
Daniel Rosales-Martinez ◽  
Raquel Gonzalo-Lumbreras ◽  
Ana Santos-Montes ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Method Development ◽  
Animal Feed ◽  
Method Development And Validation ◽  
Development And Validation ◽  
Feed Samples
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