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Determination of Iodide and Iodate in Soy- and Milk-Based Infant Formulas
7 Feb 2013Iodine is an important micronutrient involved in the regulation of many key biochemical reactions, so its concentration in iodine-fortified foods is often regulated and monitored. Read this application note to learn about a robust IC-PAD-based method developed by Thermo Fisher Scientific for the determination of iodide and iodate in soy- and milk-based infant formulas. Performed on a high-pressure IC system, this method has broad linear range (0.005–10 mg/L), high precisions (relative standard deviation <0.3% for retention time and <3% for peak area), and good recoveries.
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UHPLC and HPLCHigh performance liquid chromatography (HPLC) and ultra high performance liquid chromatography (UHPLC), also known as UPLC, are analytical techniques used to separate, identify and quantitate components of complex mixtures including biological samples such as proteins and lipids as well as chemical mixtures of pesticides, drugs and oils. Both techniques are liquid chromatographic methods but differ by operating pressures (HPLC < 6000 psi < UHPLC ). Components of HPLC and UHPLC systems include columns, detectors, pumps, autosamplers and column heaters. Explore a range of UHPLC and HPLC columns for your specific sample needs including reverse phase, normal phase, ion exchange, HILIC, ion exclusion and size exclusion columns. For more specialized HPLC, explore FPLC, countercurrent LC and simulated moving bed systems. Find the best UHPLC and HPLC equipment in our peer reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Ion ChromatographyIon chromatography, also known as ion exchange chromatography, is a high-performance liquid chromatographic technique used for the separation and identification of ions or polar molecules in a sample, including proteins, nucleotides and amino acids. Equipment includes ion exchange columns, ion exclusion columns, ion chromatography systems, pumps, and detectors. Find the best ion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Food TestingFood testing refers to a variety experiments including PCR, mass spectrometry, processing, QuEChERS, analyzing and Kjeldahl.MilkMilk is a dairy product that contains lactose. It is consumed by infant mammals to provide nutrients from the mother. In 2008, the Chinese milk scandal saw the unlawful adulteration of powdered milk with melamine.Food SafetyFood safety describes the prevention of food-borne illnesses. Contamination with a variety of pathogens can be prevented with adequate temperature control, hygiene and labeling. Food samples can be tested using GC/MS, HPLC, SPE, and qPCR to ensure their adherence to regulations.