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Inductively coupled plasma mass spectrometry (ICP-MS) was combined with flow injection (FI) and a selective extraction procedure (which isolates Alzheimer's amyloid plaques) for the multielemental analysis of plaque cores. FI-ICP-MS was also used to analyze the various reagents involved in the sample preparation to determine whether they were the source of(More)
Struvite (MgNH4PO4.6H2O) calculi are a common complication of Proteus mirabilis urinary tract infections. Although urease is a major virulence factor in calculus formation, the polysaccharide capsule (CPS) of this organism also enhances struvite crystallization and growth in vitro (L. Clapham, R. J. C. McLean, J. C. Nickel, J. Downey, and J. W. Costerton,(More)
The metal-binding affinity of the anionic poly-gamma-d-glutamyl capsule of Bacillus licheniformis was investigated by using Na, Mg, Al, Ca, Cr, Mn, Fe, Ni, and Cu. Purified capsule was suspended in various concentrations of the chloride salts of the various metals, and after dialysis the bound metals were analyzed either by graphite furnace atomic(More)
The determination of seven arsenic species in seafood was performed using ion exchange chromatography on an IonPac AS7 column with inductively coupled plasma mass spectrometry detection after microwave assisted extraction. The effect of five parameters on arsenic extraction recoveries was evaluated in certified reference materials. The recoveries of total(More)
We examined ferric (Fe3+) and ferrous (Fe2+) iron binding by the anionic gamma-glutamyl capsule polymer of Bacillus licheniformis ATCC 9945. The addition of FeCl3 to B. licheniformis capsule under aerobic conditions resulted in flocculation due to the capsule-induced formation of amorphous, rust-colored ferrihydrite. Significant binding of iron, which could(More)
BACKGROUND Inductively coupled plasma mass spectrometry (ICPMS) is a powerful technique allowing the multielemental ultratrace analysis of a wide variety of samples. Several people (among users, manufacturers, etc.) consider it to be a routine technique. In fact, the sales of ICPMS instruments are increasing by approximately 10% per year (A1). Therefore, it(More)
Fundamental research on non-spectroscopic interferences, also known as matrix effects, in inductively coupled plasma (ICP) mass spectrometry with sample introduction using nebulization is critically and exclusively examined in this review, starting with fundamental processes that may be a source of matrix effects during sample introduction, ion generation(More)
This article reviews the numerous ways in which inductively coupled plasma mass spectrometry has been used for the analysis of environmental samples since it was commercially introduced in 1983. Its multielemental isotopic capability, high sensitivity and wide linear dynamic range makes it ideally suited for environmental analysis. Provided that some care(More)