Interlaboratory comparison of low-level organic tritium measurement in environmental samples.
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چکیده
منابع مشابه
An interlaboratory comparison study for the determination of dialkyl phthalate esters in environmental and biological samples.
A series of interlaboratory comparison exercises were conducted to assess the accuracy of dialkyl phthalate ester (DPE) concentration measurements in environmental and biological samples. Five laboratories participated in analyses to determine DPE concentrations in standard test solutions; marine sediments; three certified reference materials, including CARP-2 (fish muscle) and BCR-07 (fortifie...
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RATIONALE Natural water samples artificially or experimentally enriched in deuterium ((2) H) at concentrations up to 10,000 ppm are required for various medical, environmental and hydrological tracer applications, but are difficult to measure using conventional stable isotope ratio mass spectrometry. METHODS Here we demonstrate that off-axis integrated cavity output (OA-ICOS) laser spectromet...
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Because of increased interest in the assay of albumin in urine and the sensitivity required to quantify concentrations associated with (a) increased risk of developing end-stage renal disease and cardiovascular disease among people with diabetes and (b) renal damage caused by exposure to nephrotoxic substances, we conducted a pilot study of the variation of these measurements within and among f...
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Many types of organic phosphorus (P) molecules exist in environmental samples. Traditional P measurements do not detect these organic P compounds since they do not react with colorimetric reagents. Enzymatic hydrolysis (EH) is an emerging method for accurately characterizing organic P forms in environmental samples. This method is only trumped in accuracy by Phosphorus-31 Nuclear Magnetic Reson...
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ژورنال
عنوان ژورنال: RADIOISOTOPES
سال: 1990
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.39.10_457