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

Webinar
Now available on-demand
Exploring the Great Unknown: Advanced Techniques for Mixture Characterization

This presentation will show recent successes whereby novel endocrine disruptor chemicals have been identified in water, as well as an example of dust composition and unique structural elucidation.

Read More thumbnail image: <font color=red>Webinar<br/>Now available on-demand<br/></font>Exploring the Great Unknown: Advanced Techniques for Mixture Characterization

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.

Read More thumbnail image: Last Month's Most Accessed Feature: Design and degradation in drug determination

Advertorial Feature

Shimadzu Europa
High-Resolution and High-Speed Simultaneous Analysis of Preservatives in Cosmetics Using SPP Column

thumbnail image: <font size=3>Shimadzu Europa</font><br />High-Resolution and High-Speed Simultaneous Analysis of Preservatives in Cosmetics Using SPP Column

To increase their stability, many cosmetics contain antiseptic compounds such as parabens and 2-phenoxyethanol. However, these preservatives are not only bactericidal but can also cause allergic symptoms in humans. This article introduces a method for the analysis of 24 types of cosmetic preservatives, either specified in the cosmetics standards established by the Japanese Ministry of Health, Labour and Welfare or regulated by the European Commission, using ultra-high performance liquid chromatography...

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Ezines

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Chasing cheese cheats with LC-MS

Ryan De Vooght-Johnson

Nov 14, 2019

thumbnail image: Chasing cheese cheats with LC-MS

Many varieties of cheese are made from either goat’s milk or sheep’s milk, but adulteration with cheaper cow’s milk is a continuing problem. Researchers from the University of Chemistry and Technology, Prague, used partial hydrolysis of cheese protein followed by LC-MS to detect contamination of sheep’s cheese and goat’s cheese with material derived from cows.

Fluorescence shows the way to keep deficiency at bay

Ryan De Vooght-Johnson

Oct 31, 2019

thumbnail image: Fluorescence shows the way to keep deficiency at bay

Thiamine deficiency can cause serious health problems, and methods are needed to detect it by analysing blood samples. A team from Manipal Academy of Higher Education, India, developed a method to detect thiamine deficiency in infants, using dried blood spot sampling, reaction with potassium ferricyanide and HPLC with fluorescence detection.

Two reliable HPLC methods have been developed for the urinary detection of six oral β‐lactams commonly used in paediatric patients with acute respiratory infections.

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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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