Microanalysis of Lithium by Stable Isotope Dilution Method
نویسندگان
چکیده
منابع مشابه
Bioavailability of soilborne lead in adults, by stable isotope dilution.
Using stable isotope dilution, we determined the bioavailability of soilborne lead (Pb) in human adult volunteers. Soil from a residential yard at a mining-impacted federal Superfund site that had negligible amounts of other priority pollutants was dried and screened through a 25-micron mesh sieve. The < 250-micron fraction, which likely represents that ingested via hand-to-mouth activity, was ...
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BETH BURNSIDE, CHRIS KOZAK, and F. C. KAFATOS. From the Marine Biological Laboratory, Woods Hole, Massachusetts 02543 . Dr . Burnside's present address is the Department of Anatomy, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104 . Dr . Kozak's present address is the Department of Biology, Yale University, New Haven, Connecticut 06520 . Dr. Kafatos' present addr...
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Methylmalonic acid concentrations are increased in serum in vitamin B12 (cobalamin) deficiency. Here I demonstrate the successful use of anion-exchange extraction for improving newly developed analytical procedures and describe well-documented, reliable performance of this method for rapid determination of methylmalonic acid. The sorbent counter ion is formate, and the elution solvent is formic...
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BACKGROUND Total homocysteine (tHcy) has emerged as an important independent risk factor for cardiovascular disease. Analytical methods are needed to accommodate the high testing volumes for tHcy and provide rapid turnaround. METHODS We developed liquid chromatography electrospray tandem mass spectrometry (LC-MS/MS) method based on the analysis of 100 microL of either plasma or urine with hom...
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A fast, easy-to-handle and cost-effective analytical method for 11 mycotoxins currently regulated in maize and other cereal-based food products in Europe was developed and validated for maize. The method is based on two extraction steps using different acidified acetonitrile–water mixtures. Separation is achieved using ultrahigh-performance liquid chromatography (UHPLC) by a linear water–methan...
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ژورنال
عنوان ژورنال: Journal of the Mass Spectrometry Society of Japan
سال: 1972
ISSN: 1884-3271,1340-8097
DOI: 10.5702/massspec1953.20.81