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 - Wednesday, April 12
Analysis of Environmental Contaminants in Water Using an Agilent 6470 LC/TQ Instrument

The analytical demands for detecting organic contaminants in water at low ng/L level have pushed the development of new methodologies using LC/TQ instrumentation. In this regard, and in the last few years, advances in sensitivity and selectivity have made this challenge possible. This webinar will focus on the use of the new 6470 LC-MS-MS from Agilent Technologies for the sub ng/L level detection of several pharmaceuticals and pesticides in surface waters. Examples of optimization of several source...

Read More thumbnail image: <font color=red>Webinar - Wednesday, April 12<br/></font>Analysis of Environmental Contaminants in Water Using an Agilent 6470 LC/TQ Instrument

Last Month's Most Accessed Feature: Controversial caffeine caught by clever LC-MS/MS method

Most of us like the odd cup of tea or coffee, but a very high caffeine intake from oral sprays, e-cigarettes or powdered caffeine can have serious health consequences, particularly when combined with high alcohol consumption. Researchers at the University of Tennessee have developed a novel method of simultaneously determining the concentrations of caffeine and its metabolites in plasma by LC-MS/MS with ESI-MS/MS.

Read More thumbnail image: Last Month's Most Accessed Feature: Controversial caffeine caught by clever LC-MS/MS method

Advertorial Feature

2017 Edition of Mass Spectra of Designer Drugs

thumbnail image: <font size=3>2017 Edition of Mass Spectra of Designer Drugs</font>

Available now from Wiley and Wiley-VCH, the 2017 edition of Mass Spectra of Designer Drugs

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The lipids in sturgeon and brill roe, which are used as lipid sources in beauty creams, have been analyzed and compared using GC/MS for fatty acids and HPLC coupled with high resolution MS for triacylglycerols.

Brain painkiller reaction rates revealed in real-time

Ryan De Vooght-Johnson

Mar 15, 2017

thumbnail image: Brain painkiller reaction rates revealed in real-time

The pharmacokinetics of the commonly-used synthetic opioid painkiller tramadol are of great interest, but most work to date has focused on the levels in plasma, rather than in the brain. In order to obtain information on the kinetics of tramadol and its main metabolite, O-desmethyltramadol, in rat brains, researchers from Wuhan University used a procedure involving microdialysis of cerebral fluid, followed by LC-MS/MS.

LC-MS/MS shines light on sunscreen UV filters

Ryan De Vooght-Johnson

Mar 1, 2017

thumbnail image: LC-MSMS shines light on sunscreen UV filters

The detection of UV filters, used in sunscreens and other cosmetics, is a topic of interest for analysts working on their possible health effects, for those concerned with consumer protection and also for environmental scientists, since these products can have adverse environmental consequences, such as damaging coral. Scientists in Beijing have developed an improved method for detecting a range of different UV filters using LC-MS/MS.

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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...

In the current context of international conflicts and localized terrorist actions, there is unfortunately a permanent threat of attacks with unconventional warfare agents. Among these, biological agents such as toxins, microorganisms, and viruses deserve particular attention owing to their ease of production and dissemination. Mass spectrometry-based techniques for the detection and quantification of biological agents have a decisive role to play for countermeasures in a scenario of biological attacks.

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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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The Flipped Classroom: How to Prepare and Teach a Flipped Classroom

Date: Mar 30, 2017 - 16:00

This webinar will present the concept and rationale for using a flipped classroom to teach analytical chemistry at university level. Along with presenting methods for how to create the flipped classroom, strategies on how to conduct the class time, and engage the students will be discussed.

thumbnail image: The Flipped Classroom: How to Prepare and Teach a Flipped Classroom
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Laboratory Safety for Chemistry Students, 2nd Edition

Robert H. Hill, Jr., David C. Finster

Jun 21, 2016

thumbnail image: Laboratory Safety for Chemistry Students 2nd Edition
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Waters Empower Cloud

Date: Mar 8, 2017

Thomas Tucker from Waters Corporation discusses Empower Cloud, a cloud deployable, compliance ready enterprise Chromatography Data Software (CDS).

thumbnail image: Waters Empower Cloud
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