Metrohm

Articles by Metrohm

Join us for this webcast to learn about new regulations related to sugar analysis in human food, animal feeds, and pet foods. Learn about ion chromatography methods for selective and sensitive sugar profiling, and new inline sample preparation techniques to achieve reproducible results. Live: Thursday, 4 October, 2018 at 11 am EDT | 8 am PDT | 1600 BST | 1700 CEST / On Demand available after airing until 4 October, 2019. Register free: http://www.chromatographyonline.com/lcgc_w/sugar

This poster presents an approach that couples a Particle-Into-Liquid-Sampler (PILS) to a dual-channel ion chromatograph (IC) for measurement of aerosol anions and cations and a voltammetric measuring stand (VA) to determine the heavy metals. Feasibility of the PILS-IC-VA online system was demonstrated by collecting aerosol samples in Herisau Switzerland, at defined time intervals; air pollution events were simulated by burning lead- and cadmium-coated sparklers.

The combination of ion chromatography (IC) and inductively coupled plasma mass spectrometry (ICP/MS) provides a rapid, reliable, and sensitive speciation analysis of wastewater-relevant free and complexed gadolinium compounds. IC-ICP/MS proceeds without costly sample preparation and provides important information on the supply, degradation, and fate of the contrast agents in the (waste)water. The method is also highly suitable for determining compounds containing gadolinium in biological matrixes such as urine or blood. Additionally, IC-ICP/MS is a powerful tool for monitoring inorganic and iodine-containing ionic oxidation by-products that form during ozonation of iodinated X-contrast media.

The Combustion IC system presented allows the automated determination of organic halogen and sulfur compounds in all flammable samples. Both combustion digestion, which is automatically controlled with a flame sensor, and the professional Liquid Handling guarantee highest precision and trueness. This poster describes the determination of the halogen and sulfur content in a certified polymer standard, a coal reference material as well as in latex and vinyl gloves.