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HPLC Congress 2016- Exploring the boundless analytical techniques
16 September 2015 | By HPLC
Microanalysis which is critical in today’s research is ushered by boundless analytical techniques, the major one being HPLC...
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Chromatography
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Universal detection in high performance liquid chromatography
3 July 2015 | By David P. Elder, Phil Borman and George Okafo - GlaxoSmithKline
The most commonly used analytical technique for the testing of drug molecules is reversed-phase high performance liquid chromatography (RP-HPLC) with ultraviolet (UV)/visible detection. However, one of the biggest constraints affecting UV/visible detectors is their inability to generate adequate sensitivity for analytes lacking a suitable UV chromophore.
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HPLC: On-chip liquid chromatographic separation
High-performance liquid chromatography (HPLC) is a powerful separation technique due to its high accuracy, precision, versatility and robustness. In the development of pharmaceuticals, it is no doubt that LC is a key technology in the quality control of pharmaceuticals and pharmacokinetic studies and in the analysis of complex biological compounds…
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Can HPLC assay methods really be considered quality critical tests?
Analytical method specificity is assessed using ICH (International Conference on Harmonisation) Q2 (2005). Although, certain methods are not specific enough for their intended purposes, they may have other advantages. Both titrimetric and UV (Ultra-violet spectroscopy) assays are non-specific, but have superior precision (ca. 0.1-0.5% RSD (Residual Standard Deviation)) compared with…
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Bio-mimetic chromatography to predict drug distribution in vivo
29 October 2010 | By Klara Valko, Analytical Chemistry, GlaxoSmithKline Medicines Research Centre
A major concern for the pharmaceutical industry is the high attrition rate (>90 per cent) of potential drug molecules failing during late stages of the drug discovery process. This may be due to lack of efficacy in the clinic, unexpected side effects or unfavourable pharmacokinetics. There is a need for…
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New phases for rapid ion analysis
7 March 2005 | By Dr Brett Paull and Prof. Pavel Nesterenko, Research Scientists, National Centre for Sensor Research, Dublin
Ion chromatography (IC) is currently used throughout chemical and pharmaceutical industries for the quantitative determination of inorganic and organic anions and cations in a variety of matrices from both raw materials to finished products. In most cases, suppressed IC is utilised, particularly for the determination of inorganic anions and this…
