Food and Beverage Analysis
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May 3rd 2024
Jiangsu University scientists developed Raman-based system for detecting aflatoxin B1 (AFB1), a byproduct of the most common fungus that can arise in moldy peanuts.
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Analysis of Milk Powders Based on Chinese Standard Method Using the Agilent 5100 SVDV ICP-OES
July 20th 2015Trace toxic and major nutrient elements were measured in a single measurement in a milk powder SRM, with no ionization buffers, using a synchronous dual view ICP-OES. The methodology was in accordance with Chinese method GB 5413.21 for raw milk and dairy products. Excellent recoveries were achieved for all elements determined in the SRM, demonstrating the accuracy of the method over a large dynamic range.
Rapid Determination of Five Arsenic Species in Polished Rice Using HPLC-ICP-MS
July 20th 2015Five arsenic species, including the toxicologically relevant inorganic forms As(III) and As(V), were determined in 4 minutes, with excellent sensitivity, accuracy and precision using an Agilent LC fitted with a reversed phase column coupled to an ICP-MS. Any potential interferences on As such as ArCl+ were removed using a single-cell gas mode (helium mode), speeding up the analysis.
Determination of Chromium, Selenium, and Molybdenum in Nutritional Products by ICP-MS
July 20th 2015A validated ICP-MS method for the determination of Cr, Se, and Mo in infant formula and adult nutritional products was transferred to a next-generation system. This methodology is potentially suitable as a global reference method for the application, as all samples can be analyzed using a single-cell gas mode (helium mode) that provides effective removal of polyatomic interferences - significantly improving productivity.
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MS
A fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Total Metals Analysis of Digested Plant Tissue Using an Agilent 4200 Microwave Plasma-AES
July 20th 2015Safe, low cost MP-AES analysis of total metal content of a plant-based reference material following microwave digestion is presented. Elements that are difficult to analyze by FAAS such as B and P were included, with all data acquired in a single run. Accurate determinations over a wide concentration range and with better detection limits and sample throughput compared to FAAS were obtained.
