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 Series
Removing the Tedium from Routine LC Workflows

In this series of four short webinars, Agilent InfinityLab LC Solutions are introduced that are designed to ease life in the analytical lab, making what used to be very manual and error-prone more automated and efficient.

Read More thumbnail image: <font color=red><br/>Webinar Series<br/></font>Removing the Tedium from Routine LC Workflows

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

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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UHPLC seems right to find sunscreen metabolites

Ryan De Vooght-Johnson

Jan 16, 2020

thumbnail image: UHPLC seems right to find sunscreen metabolites

Sunscreens are widely used, but information about their possible metabolites is limited. A team from the University of Quebec, Montreal, used a combination of UHPLC and QTOF-MS to examine the metabolites from six sunscreen compounds produced by in vitro treatment with human or rat microsomes.

Imidazole quantification by LC determination

Ryan De Vooght-Johnson

Dec 26, 2019

thumbnail image: Imidazole quantification by LC determination

Various substituted imidazole compounds, some of which may have adverse health effects or give rise to further reactions in the atmosphere, are found as constituents of atmospheric particles. Researchers from the Leibniz Institute for Tropospheric Research (Leipzig, Germany) and Fudan University (Shanghai) used LC-MS with an Orbitrap MS to detect imidazoles from atmospheric particles.

An easy, highly sensitive, selective, accurate and efficient microextraction technique combined with an HPLC-UV assay has been developed to measure four heterocyclic aromatic amines in doner kebab samples.

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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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