Category Archive: Chemistry

Jun 26

Food safety and quality – how fresh is your fish?

The moment a fish is caught it begins the natural process of decay, being broken down by enzymes (from the fish itself or bacteria naturally present). Measuring the resulting chemicals produced gives a measure of the freshness, and thus the quality, of the fish. Similarly, as LGC’s Michael Walker asks in a recent article for Food Science …

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May 01

Metabolism of therapeutic peptides

Peptide and protein based drugs are significantly more complicated to work with than small molecules, and as yet do not have specific guidelines for their development with regards to in-vivo metabolites. The analysis of metabolites from small molecule drugs is defined by the FDA in the metabolites in safety testing guidelines (MIST, 2008). Currently, analytical …

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Mar 20

Ultrasensitive immunoassays using single molecule counting technology

Traditional ELISA-based immunoassays have struggled to determine baseline endogenous concentrations for many biomarkers. The Erenna® Immunoassay System is based on the same principles as a plate-based sandwich ELISA but offers 50-1000 fold greater sensitivity through a combination of microparticle bead (MB) capture and single molecule counting of fluorescently labelled detection molecules. MB’s have the dual …

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Feb 13

Valentine’s Day: its all about chemistry

LGC products and services are used in all aspects of people’s day to day lives, even on Valentine’s Day. Whatever you’re doing this Valentine’s Day, there’s a good chance one of our offerings is helping to make your evening magical, without you even realising. Romantic dinner for two: Whether you’re indulging yourself at a top …

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Jan 20

Is mercury making us as mad as a hatter?

“Have I gone mad?” The Hatter asks Alice. “I’m afraid so. You’re entirely bonkers. But I’ll tell you a secret, all the best people are.” replies Alice. Published in 1865, the enchanting story of Alice’s Adventures in Wonderland features weird and wonderful characters in a world that becomes ‘curiouser and curiouser’. The Hatter is an …

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Dec 11

Drink driving: measuring the effects of ‘one for the road’

50 years ago, the first public information announcement was broadcast into the nation’s homes warning drivers “if he’s been drinking, don’t let him drive – don’t ask a man to drink and drive”. The seasonal drink drive campaign would go on to become a staple of Christmas, appearing each November to warn drivers of the …

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Nov 21

Proficiency Testing and the fight against food fraud

The supply of food and beverages is now a massive worldwide industry generating trillions of pounds for producers, retailers and intermediaries. ‘Value’ is generally added at each stage of a product’s life and certain foods or beverages have ‘added value’ as a result of a designated geographical origin or as a result of production using …

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Nov 18

Food authenticity: more than just a question of taste

Whisky

Not any old pie can hold the name of Melton Mowbray pork pie. Similarly, only a pasty made in Cornwall following the traditional recipe can be called a Cornish pasty and only specific bottles of plonk can be declared as champagne. These products have all been awarded special status that protects their name in the …

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Nov 17

The Government Chemist Conference 2014

With a history dating back to 1842, LGC remains home to the unique function of the Government Chemist. Providing expert opinion, based on independent chemical and bioanalytical measurement, we help to avoid or resolve disputes pertaining to food and agriculture in order to protect the public. The Government Chemist Conference, ‘Beating the cheats: Quality, safety …

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Oct 03

Rapid rise in workplace drugs testing

The BBC today have said that workplace drug testing has increased significantly in the UK. In an article, which featured LGC, the BBC claimed that the rise in the number of annual tests carried out by drugs screening companies is between 40 and 470%. LGC has seen a 100% increase in the number of annual …

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