71 Food & Beverage Analysis Mixed-Batch Food Sample Microwave Digestion
With stricter food industry regulations now in place, demand for trace metals analysis at lower detection levels is a fundamental task today. ICP, once the standard for food metals analysis, is rapidly being replaced by ICP-MS, placing increased emphasis on sam ple preparation methodologies. Closed-vessel microwave digestion has proven to be an effective technique, offering fast, complete di gestions, a clean environment, and effective recovery of volatile compounds. Drawbacks have been the limitations in running diges tion on several matrix types simultaneously, the handling time and the maximum sample amount.
Milestone’s SRC microwave digestion, is a revolutionary new approach, incorporating all of the benefits of closed vessel microwave digestion with new levels of convenience and effectiveness. The Milestone ultraWAVE is a bench-top instrument that operates at very high pressures and temperatures, capable of processing large, dissimilar and difficult samples quickly, easily, all without batch ing.
The data shown in the Milestone Technical Note demonstrates that the digestion of samples in the ultraWAVE results in uniformly high analytical data quality, making it the ideal solution for trace metals detection in food.
More information online:
ilmt.co/PL/OJLD 49348pr@reply-direct.com
New Workfl ow for Determining Anionic Pesticides in Food Announced
A new, validated ion chromatography tandem mass spectrometry (IC-MS/MS) analytical workflow is designed to enable food testing laboratories to overcome the challenges associated with liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis of polar anionic pesticides in complex sample matrices.
The Thermo Scientific Anionic Pesticides Explorer is a high-throughput, sample-to-result, IC-MS/MS-based analytical workflow, comprised of the Thermo Scientific Dionex Integrion High Performance Ion Chromatography system coupled with the Thermo Scientific TSQ Altis Triple Quadrupole MS, for the multi- residue detection, identification and quantification of anionic pesticides at low concentrations in complex food matrices.
“Anionic polar pesticides, such as glyphosate, are widely used in agriculture, but the difficulties associated with their analysis using LC-MS/MS-based methods have contributed to the infrequent monitoring of these pesticides in the global food chain - a situation that is concerning for consumers and regulatory authorities alike,” said Khalil Divan, Senior Director, Food and Beverage, Chromatography and Mass Spectrometry, Thermo Fisher Scientific. “The Anionic Pesticides Explorer is an out-of-the-box, easy-to-implement, analytical workflow that allows food safety laboratories to increase monitoring and throughput for quantitation and identification of multiple anionic pesticides in a single analysis.”
Katie Banaszewski, Method Development Supervisor, Now Foods, said: “As a manufacturer of supplements and nutritional products derived from natural sources, it is essential to ensure incoming raw materials are safe, and pesticide testing is a vital step for us confirming this. The application of the Anionic Pesticides Explorer has enabled us to enhance the productivity of our testing workflows through the reliable detection of multi-residue pesticides across a wide range of sample matrices, all within a single, sensitive analytical solution.”
The Anionic Pesticides Explorer is designed to provide food testing laboratories with: increased workflow productivity and simple methodology through access to a single multi-residue method for high- priority anionic polar pesticide and metabolites; a robust method, offering enhanced chromatographic retention, resolution and sensitivity with modified Quick Polar Pesticides Method (QuPPe) sample preparation protocol for a wide range of matrices; a fully documented, ready-to-run workflow supported by a system-suitability test and detailed guidance documents to enable optimum performance during routine operation according to EU SANTE method performance criteria.
More information online:
ilmt.co/PL/XyRZ 50896pr@reply-direct.com
Cost-effective and Reliable Solution for Analysis of Metals in Spirits LEC company, a leading spirit control companies in the Cognac region,
managed to switch from atomic absorption (AA) spectrometry to capillary electrophoresis (CE) to analyse metals in spirits using Capel-105M.
LEC found the CE systems from Lumex Instruments to be the most cost-effective, user-friendly, and reliable solution to solve its analytical tasks in oenology because of high level of accuracy and versatility of CE compared to other methods. Although atomic absorption spectrometry is the most commonly used technique for metal determination in wines, starting at the end of 2018, LEC switched from this technique to capillary electrophoresis to quantify iron (II) and copper. Capel-105M had significant and important benefits over the AA spectrometer that was used by LEC before: simple sample preparation, fast and accurate analysis, and no need for a specific calibration for each element. Moreover, this switch has reduced the maintenance cost for LEC since it reduced the number of instruments used for its analyses.
Capillary electrophoresis proved to be a powerful and reliable technique to analyse the diversity of wine and brandy compounds. CE system Capel provides a number of advantages for the analysis of wine and brandies, including short analysis times, low waste generation, very high level of accuracy, and a diverse range of applications.
The LEC company purchased its first CE system Capel-105M in 2011 to determine a number of compounds in wine and spirits, like aromatic aldehydes in cognac and brandies, and organic acids in wine materials. The analytical protocols developed by Lumex Instruments using CE have benefits over other commonly applied techniques such as titration or enzymatic method. One of the most significant of them is the determination of multiple compounds just in one run. Besides that, LEC analyses organic acids, sugars (fructose, glucose, and sucrose) in food and beverages, and inorganic cations in wine with the CE method. Today, LEC uses two Capel-105M systems.
50893pr@reply-direct.com
New Glucose/Lactate Analyser for Food and Beverage Applications
Xylem has launched the new YSI brand 2500 Biochemistry Analyser for rapid analysis of glucose and/or lactate in food and beverage products. Based on the established 2900D Series analyser that is commonplace in modern biotechnology laboratories around the globe, by comparison, this cut-down version offers a wide range of application solutions at a very affordable price.
The new analyser uses proprietary immobilised enzyme electrode technology to provide results in 60 seconds or less; the results being hardly affected by colour, turbidity, pH or the presence of reducing substances. Current YSI 2500 Analyser application methods include the determination of dextrose in potatoes, glucose in frozen or canned green beans and L-Lactate in luncheon meats as well as % cook in extruded cereal products by chemical solubility or autoclave methods.
Like its big brother, the YSI 2500 features an intuitive graphical user interface, a USB port for data retrieval, and the ability to measure samples from a variety of sample holders including 96 well plates and micro-centrifuge tubes.
For a wider range of analytes within the food and beverage and wider industries, the 2900D model can measure glucose, lactate, glutamate, glutamine, glycerol, xylose, choline, hydrogen peroxide, sucrose, ethanol, methanol, lactose, galactose.
YSI is part of Xylem’s analytical division, whose brands Bellingham + Stanley (refractometers & polarimeters), ebro (precision thermometers, food oil meters & data loggers), SI Analytics (electrodes & titrators), OI Analytical (TOC & nitrate/ nitrite flow chemistry analysers) and WTW (multi-parameter lab meters & spectrophotometers) have been serving the food and beverage industry for many years.
Contact Xylem today to receive a copy of our ‘Quality Control Instrumentation for the Food and Beverage Industry’ 32-page booklet.
More information online:
ilmt.co/PL/GVDy 48489pr@reply-direct.com
The Spotlight could be on you!
Contact Gwyneth Astles on +44 (0)1727 855574 or email:
gwyneth@intlabmate.com
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