ResourceSpectroscopy
Maleic and Kojic Acid in Starch Applying UV/VIS Detection After Ion-Exclusion Chromatography
14 Sept 2015Maleic acid findings in Asian food caused the recall of a lot of starch-containing food products in Asia. Long-term consumption of maleic acid can cause kidney problems. The cyclic kojic acid, on the other hand, is approved as an additive in food and cosmetics to preserve or to bleach, respectively. In this application note, both acids are determined in a single analysis using the 944 Professional UV/VIS Detector Vario and the 863 Compact IC Autosampler from Metrohm.
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UV-Visible SpectroscopyUltraviolet-visible (UV-Vis) spectrophotometers are used to measure the interaction of UV and visible light with a sample, including transmission, reflectance & absorbance. The two major instrument classes are single-beam or double-beam spectrophotometers. More specialized equipment includes colorimeters, spectroradiometers and refractometers. Portable and microvolume spectrophotometers are also available. For the modular spectroscopy lab, explore a range of light sources for combination with a spectrograph/spectrometer and optics. Find the best UV-Vis spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.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.Food TestingFood testing refers to a variety experiments including PCR, mass spectrometry, processing, QuEChERS, analyzing and Kjeldahl.CosmeticsOrganic Acids


