GC / Ezine

Skip to Navigation

Ezine RSS Feed

rss

Filter Ezines

Browse By Ezines

Filter by Supplier

Browse By Supplier

Nerve agents detected when fluoridation selected

Date: Jul 14, 2017

Author: Ryan De Vooght-Johnson

The field identification of chemical warfare agents remains a challenge, particularly for less volatile compounds that are not easily detected by GC-MS systems. Japanese scientists from the National Research Institute of Police Science, INFICON’s Yokohama facility and Teikoku Sen-I Co. in Tokyo have devised a novel fluorinating device that converted VX nerve agent and others to more volatile fluorinated compounds to enable detection by GC-MS.

Read More thumbnail image: Nerve agents detected when fluoridation selected

E-liquids’ hidden alcohol revealed by GC protocol

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

E-cigarettes are increasingly popular, but doubts remain about their safety and the appropriate level of regulation. Scientists from the Virginia Commonwealth University in Richmond investigated the amount of ethanol in e-liquids by GC with headspace analysis, finding relatively high levels in a number of brands.

Read More thumbnail image: E-liquids hidden alcohol revealed by GC protocol

Answering Life's Questions with Spectroscopy

Date: Jun 28, 2017

Author: Jon Evans

Spectroscopy has been a common analytical technique in laboratories for many years. Recently, however, it has begun to emerge from the laboratory, both figuratively and literally, as more and more researchers discover that it is ideally placed to answer the questions they want to ask.

Read More thumbnail image: Answering Lifes Questions with Spectroscopy

Plastic packaging pongs profiled by 2D GC

Date: Jun 15, 2017

Author: Ryan De Vooght-Johnson

Ideally, waste plastic packaging should be able to be recycled to make food packaging, but the presence of unpleasant odours means that this is rarely attempted. Scientists from two German institutions, the Friedrich-Alexander University of Erlangen-Nuremberg and the Fraunhofer Institute for Process Engineering and Packaging at Freising, used a combination of 1D GC, 2D GC, mass spectrometry and sensory analysis to detect compounds with strong odours in waste plastic packaging.

Read More thumbnail image: Plastic packaging pongs profiled by 2D GC

Journal Highlight: Validation of analytical method for α-dicarbonyl compounds using gas chromatography–nitrogen phosphorous detector and their levels in alcoholic beverages

Date: Jun 12, 2017

Author: separationsNOW

A GC-NPD method has been developed to measure α-dicarbonyl compounds including glyoxal, methylglyoxal and diacetyl in 101 alcoholic beverages then perform exposure assessments.

Read More thumbnail image: Journal Highlight Validation of analytical method for -dicarbonyl compounds using gas chromatographynitrogen phosphorous detector and their levels in alcoholic beverages

Heart-cutting GC stops citrus fakery

Date: Jun 1, 2017

Author: Ryan De Vooght-Johnson

Citrus fruits and their products, such as essential oils, are found in a wide range of foods and perfumery formulations, but can be adulterated with synthetic compounds or cheaper natural extracts. Scientists from South Korea and Pakistan used heart-cutting multi-dimensional gas chromatography and mass spectrometry to determine the enantiomeric excess of various citrus compounds, measurements of which should detect adulteration.

Read More thumbnail image: Heart-cutting GC stops citrus fakery

Journal Highlight: GC-MS analysis of various phytoestrogens in health functional foods

Date: May 15, 2017

Author: separationsNOW

The contents of 21 phytoestrogens in commercial health functional foods in South Korea sold to alleviate menopausal symptoms have been measured by GC/MS.

Read More thumbnail image: Journal Highlight GC-MS analysis of various phytoestrogens in health functional foods

Careful GC optimisation gives phyto-oestrogen separation

Date: May 15, 2017

Author: Ryan De Vooght-Johnson

Various functional foods used for treating menopausal symptoms contain phyto-oestrogens, which are compounds from plants that mimic the effect of female hormones. Scientists from the Korea Institute of Science and Technology and Yonsei University (both in Seoul) used hydrolysis, derivatisation and GC-MS to assay a wide range of phyto-oestrogens in functional foods.

Read More thumbnail image: Careful GC optimisation gives phyto-oestrogen separation

Chewing over the problem of gum antioxidant analysis

Date: May 1, 2017

Author: Ryan De Vooght-Johnson

Butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) are common antioxidants used as food additives. Scientists from the IRCCS Istituto di Ricerche Farmacologiche ‘Mario Negri’ in Milan have devised a novel method for the assay of these compounds in samples of chewing gum, using headspace analysis and GC-MS.

Read More thumbnail image: Chewing over the problem of gum antioxidant analysis

E-nose UFGC Detects if Meat Traders Have Been Telling Porkies

Date: Apr 17, 2017

Author: Ryan De Vooght-Johnson

Frozen meat products can be thawed out and passed off as fresh, chilled meats, thus fetching a higher price. Researchers at Warsaw University of Life Sciences and University College Dublin have developed a method to differentiate between chilled and frozen pork using an electronic nose device containing an ultra-fast gas chromatography unit.

Read More thumbnail image: E-nose UFGC Detects if Meat Traders Have Been Telling Porkies
Page:   Prev 1 2 3 4 5 6 7 Next

Social Links

Share This Links

Bookmark and Share

Microsites

Suppliers Selection
Societies Selection

Banner Ad

Click here to see
all job opportunities

Copyright Information

Interested in spectroscopy? Visit our sister site spectroscopyNOW.com

Copyright © 2017 John Wiley & Sons, Inc. All Rights Reserved