A relatively new application for ionic liquids, as solvents in static Headspace Gas Chromatography, is further investigated. Two ionic liquids were studied and the response towards a range of low boil...
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Mixed-mode chromatography is emerging as a powerful tool in separation of various molecules. Mixed-mode is defined as liquid chromatography in which at least two modes of interactions exist simultaneo...
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Pesticide analysis is extremely important due to the need to ensure that foodstuff is not contaminated with pesticide residues, which can be harmful to human health. Pesticide analysis poses a number...
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This article discusses biologically important steroid measurements which have, in the past, seen a lack of analytical sensitivity. Examples include determination of testosterone levels in women and ch...
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How did you become interested in chromatography?
I took an MSc course in Analytical Chemistry at Bristol University after my first degree. Somehow it felt better learning about things that had an i...
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There are still obstacles to switch from the very common internal diameters of 0.32 mm or 0.25 mm to the "faster" columns with 0.15 mm ID. This article will show how easy it is to adapt your methods a...
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On July 1st, 2008 the requirements to the United States Pharmacopeia (USP) general chapter <467> for the identification and control of residual solvents became official. Although the USP and FDA have...
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The present research is focused on the use of a comprehensive 2D GC methodology, in the analysis of a Brazilian essential oil, viz., Macacaporanga leaf oil. A rapid scanning quadrupole mass spectromet...
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The determination of the fatty acid composition of lipids is an analysis that is widely performed. Typically a manual procedure is used to prepare the lipid sample for analysis, by forming fatty acid...
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The value of gas chromatography with vapor phase infrared spectrophotometric detection is described for a series of isomeric phenethylamines. The major mass spectral fragments for these unique isomers...
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Flavour and fragrance profiles typically comprise contributions from a wide range of volatile organic compounds (VOCs) and those at the lowest concentration can have the most profound effect on percei...
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