Food and Beverage Analysis

UCT

One fast, simple QuEChERS extraction for a broad range of pesticides.

LCGC

Levels of benzene, toluene, ethylbenzene, xylenes, and styrene (BTEXS) are a concern in olive oil. These compounds find their way into olive trees and hence into olives and olive oil mainly as a result of emissions from vehicles, bonfires, and paints into ambient air near orchards. This analysis uses a PerkinElmer? TurboMatrix? 110 Headspace (HS) sampler with a Clarus? SQ 8 gas chromatograph–mass spectrometer (GC–MS) to achieve detection limits below 5 ng/g and concentrations up to 100 ng/g.

A sensitive and selective liquid chromatography spectrometry mass spectrometry (LC–MS–MS) method to determine clenbuterol-like beta agonist residues in human hair was developed and validated.

Phenomenex Application Note

UCT Application Note

PSS Application Note

Perkin EU - VOCs in Beer Production by Headspace Trap-GC–MS

Monday afternoon’s “Food and Environment†session will take place in Grand Ballroom F-K, starting at 4:30 p.m. The Session Chairs will be Andy Dang of San Jose University (San Jose, California), and Frantisek Svec of Lawrence Berkeley National Laboratory (Berkeley, California).

A novel "green chromatography" method for analysing melamine in milk is described. The method uses 100% water as the eluent and in the sample preparation stage and is reported to be a reliable and cost-effective method for laboratories in developing countries.

HPLC with diode-array and electrochemical-array detection overcomes sensitivity and specificity limitations in natural products analysis.

Antioxidants protect cells from the damaging effects of free radicals and offer numerous benefits for human health. Many phenolic compounds found in plants, as well as some vitamins, exhibit antioxidant activity. Several colorimetric assays exist to measure the total antioxidant capacity, typically expressed as Trolox or Gallic acid equivalents.

HPLC with diode-array and electrochemical-array detection overcomes sensitivity and specificity limitations in natural products analysis.

Red wine is a challenging matrix that contains organic acids, sugars, phenols, and pigments such as anthocyanins. This application note describes a simple, fast, novel, and effective method to clean up red wine co-extractives.

The monomer bisphenol A (BPA) is used to make polycarbonate plastic and epoxy resins and has been present in many plastic bottles and metal food and drinks cans since the 1960s.

Shirley O. Corriher, who is well known for her books explaining the science of cooking and baking, will be sharing some of her secrets in tomorrow?s plenary lecture.

Janet Kelsey of The Column spoke to Joe Anacleto, Vice President of Applied Markets, AB Sciex, and Sky Countryman, Manager, Applied Markets Research Team, Phenomenex, about the impact their companies? joint collaboration project will have on the food safety testing market.

Janet Kelsey of The Column spoke to Joe Anacleto, Vice President of Applied Markets, AB Sciex, and Sky Countryman, Manager, Applied Markets Research Team, Phenomenex, about the impact their companies? joint collaboration project will have on the food safety testing market.

Veterinary drugs have become an integral part of livestock production and play an important role in animal welfare maintenance, mainly for preventing disease, curing infection, controlling the risk of disease transmission to humans and for increasing the productive capacity of animals.

It is well established that food-producing animals are exposed to toxic micropollutants via environment and feeds, and that micropollutants entering the animals are transferred to edible tissues, thus representing a chemical human health hazard.

An overview of important GC–MS techniques currently used in food analysis is described. Considerable attention is devoted to the use of the mass spectrometer, in relation to its poptential for separation and identification. The importance of comprehensive GC?GC is also discussed.

Introduction

Sample preparation is a crucial part of the analysis of foodstuffs. Current sample preparation techniques used in food analysis are reviewed and the advantages and drawbacks of each one are discussed.

In this review, the most recent LC–MS approaches are discussed, as well as the technical requirements for linking an LC system to a mass spectrometer. The advantages of on-line 2DLC in the "comprehensive" mode are also illustrated and selected applications for the analysis of common foodstuffs, such as triacylglycerols, carotenoids and polyphenols, are described. Finally, future trends for LC–MS in food analysis are reported.

On-line heart-cut LC–GC and, more recently, comprehensive LC–GC (LC?GC) are very powerful analytical techniques because of the combination of the selectivity features of LC with the high efficiency of GC. This article presents an overview of the most recently used interfacing systems, as well as applications in the food analysis.

Triple quadrupole LC/MS analysis of aflatoxins in food samples eliminates the need for expensive immuno-affinity cleanup columns and reduces the probability of false positives to almost zero.

Polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) are fat-soluble, highly toxic, ubiquitous environmental contaminants found at trace levels in all foodstuffs and animal feed.

Wine is a beverage produced and consumed throughout the world and is a highly valued commodity. Its classification and authenticity can be very important.

Whether the goal is food safety, ensuring quality or establishing provenance, measuring the trace element content of foods and beverages that we all consume is of paramount importance.