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Chasing FAME: Fatty Acid Methyl Esters detected in trace amounts

Date: Jul 1, 2016

Author: Ryan De Vooght-Johnson

Trace levels of biofuel Fatty Acid Methyl Esters (FAMEs) in fossil fuels create problems, necessitating their levels to be minimal. To aid conformity testing, researchers from Victoria, Australia, banded together to devise a two-dimensional gas chromatographic method for separating FAMEs from co-eluents, enabling their quantitation at levels not possible before.

Read More thumbnail image: Chasing FAME Fatty Acid Methyl Esters detected in trace amounts

Fish: farmed versus wild

Date: Jun 15, 2016

Author: Ryan De Vooght-Johnson

With the rise of aquaculture, fewer and fewer fish are now wild-caught. A new study investigates the molecular differences between fish caught from the open sea to those that are farmed, finding significant differences in both fatty acid and mercury content.

Read More thumbnail image: Fish farmed versus wild

Journal Highlight: IOFI recommended practice for the use of predicted relative-response factors for the rapid quantification of volatile flavouring compounds by GC-FID

Date: Jun 13, 2016

Author: separationsNOW

This recommended practice enables the quantification of volatile compounds in flavourings by GC-FID, without having authentic compounds available, and also in many cases, it can avoid time-consuming calibration procedures.

Read More thumbnail image: Journal Highlight IOFI recommended practice for the use of predicted relative-response factors for the rapid quantification of volatile flavouring compounds by GC-FID

The hydroperoxide challenge: overcoming a lack of standards

Date: Jun 1, 2016

Author: Ryan De Vooght-Johnson

Hydroperoxides, reactive chemicals responsible for allergic reactions, are notoriously difficult to quantify due to a lack of standards. A study published in Flavour and Fragrance Journal however describes a new approach which overcomes the lack of commercially available standards and could improve quality control for a wide range of products, from perfumes to laundry detergents.

Read More thumbnail image: The hydroperoxide challenge overcoming a lack of standards

Detecting impurities in drugs by Orbitrap MS

Date: May 16, 2016

Author: Ryan De Vooght-Johnson

The quality and safety of drugs hinges on identifying impurities during development. Industry scientists now describe a method to accurately detect impurities – a combination of gas chromatography and Orbitrap mass spectrometry – which could be a powerful tool for pharmaceutical development.

Read More thumbnail image: Detecting impurities in drugs by Orbitrap MS

Journal Highlight: Quantitative analysis of bioactive compounds from aromatic plants by means of dynamic headspace extraction and multiple headspace extraction-GC/MS

Date: May 16, 2016

Author: separationsNOW

Seven bioactive monoterpenes in 4 aromatic plants (sage, cardamom, lavender, and rosemary) were quantified in liquid extracts and directly in solid samples by dynamic headspace-GC/MS and multiple headspace extraction-GC/MS, respectively.

Read More thumbnail image: Journal Highlight Quantitative analysis of bioactive compounds from aromatic plants by means of dynamic headspace extraction and multiple headspace extraction-GCMS

Noble gases: neon lights, anaesthetics... and doping agents?

Date: May 1, 2016

Author: Ryan De Vooght-Johnson

The noble gas xenon, as well as being a common anaesthetic, increases oxygen delivery in the body, leading to widespread misuse in sport. Researchers from Hong Kong now describe a method to detect the gas (and its cheaper sibling, krypton) in racing horses.

Read More thumbnail image: Noble gases neon lights anaesthetics___ and doping agents

Journal Highlight: Analysis and occurrence of dichloropropanol fatty acid esters and related process-induced contaminants in edible oils and fats

Date: Apr 18, 2016

Author: separationsNOW

A headspace GC/MS method for the indirect determination of ester-bound dichloropropanols uses mild alkaline-catalysed release of chlorohydrins and glycidol, followed by a transformation of glycidol to monobromopropanediol.

Read More thumbnail image: Journal Highlight Analysis and occurrence of dichloropropanol fatty acid esters and related process-induced contaminants in edible oils and fats

Dangerous cholesterol by-products detected in processed meat, cheese and fish

Date: Apr 14, 2016

Author: Ryan De Vooght-Johnson

LDL cholesterol is known to be bad for heart health, but when cholesterol is oxidised it may become even more dangerous. This study describes a new and efficient method for detecting cholesterol oxides, applied to common processed foods.

Read More thumbnail image: Dangerous cholesterol by-products detected in processed meat cheese and fish

Is sea air really good for you?

Date: Apr 7, 2016

Author: Ryan De Vooght-Johnson

The air around us contains millions of tiny particles, some of which contribute to global warming. A new study from Japan investigated these ‘aerosols’ in the air above the Pacific Ocean, finding a new set of chemicals that may help to predict effects on climate, air quality and human health.

Read More thumbnail image: Is sea air really good for you
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