HPLC @ separationsNOW

The HPLC channel covers all techniques used for the separation of liquids.

This includes multidimensional techniques (e.g. LCxLC) and hyphenated techniques (e.g. LC-MS). Also included are capillary LC, nano LC, SEC (Size Exclusion Chromatography) and GPC (Gel Permeation Chromatography).

Gas Chromatography

Monthly Highlight

Last Month's Most Accessed Feature: Design and degradation in drug determination

There is a need for new analytical methods for the anticancer drug sorafenib, which are suitable both for the compound itself and its degradation products. Researchers from Panjab University in India used an analytical quality by design approach (AQbD), including a face-centred cubic experimental design, to devise a new HPLC method for sorafenib and its degradation products.

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2018 Free Sample Issues of Key Analytical Science Journals

The 2018 free sample issues of all our Analytical Chemistry journals are now available!

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Advertorial Feature

Journal of Separation Science Celebrates 40th Anniversary

thumbnail image: <font size=3>Journal of Separation Science Celebrates 40th Anniversary</font>

The Journal of Separation Science was born in 1978 with the name, Journal of High Resolution Chromatography, and this year celebrates its 40th birthday. To celebrate, we've created a virtual issue containing the journal's top 40 cited papers over the last four decades; and it's free for you to read for the whole of 2017.

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Ezines

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QTRAP keeps consumables clear of cannabinoids

Ryan De Vooght-Johnson

Nov 29, 2018

Products derived from hemp are increasingly used in both animal feed and items intended for human consumption, but this trend has led to a need to monitor the levels of cannabinoids in such products. Scientists from the Institute of Experimental Veterinary Preventive Medicine for Southern Italy in Naples have developed a novel LC-MS/MS system for measuring nine cannabinoids in foodstuffs.

UHPLC‐MS/MS methods have been developed for the quantitative assessment of altered post‐squalene cholesterol biosynthesis and subsequent oxysterol formation in various sample types.

Separation solved by cyclodextrin in solvent

Ryan De Vooght-Johnson

Nov 8, 2018

It is important to be able to determine the enantiomeric purity of chiral drugs, but existing chiral HPLC methods are expensive and use large amounts of solvent. Researchers from Alexandria University used a Box-Behnken experimental design to optimise an HPTLC method for separating the enantiomers of three β-blocker drug compounds.

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Education

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The Basics of Micro-LC

Thorsten Teutenberg, Terence Hetzel, Denise Loeker, Juri Leonhardt

Apr 3, 2018

thumbnail image: The Basics of Micro-LC

For some time “sustainable processes” has been the phrase on everyone’s lips. As far as analytical labs are concerned there are many possibilities for saving energy or rather for using resources more efficiently. Besides the real “energy guzzlers” such as extractors and safety cabinets, complex analysis apparatus has to be subjected to critical system checks, too.

Selected key technologies of the analytical science industry are discussed by Steve Down with reference to burgeoning application areas and the scope for future improvements.

Ion source pressure plays a significant role in the process of ionization and the subsequent ion transmission inside a mass spectrometer. Pressurizing the ion source to a gas pressure greater than atmospheric pressure is a relatively new approach that aims to further improve the performance of atmospheric pressure ionization sources. A brief review on the development of super-atmospheric pressure ion sources, including high-pressure electrospray, field desorption and superheated ESI, and the strategies to...

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Journals

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The Journal of Mass Spectrometry (JMS) publishes papers on a broad range of topics of interest to scientists working in both fundamental and applied areas involving the study of gaseous ions.

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