Determination of Lead in Blood by Atomic Absorption Spectrophotometry
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چکیده
منابع مشابه
[Direct determination of lead in blood by flameless atomic absorption spectrophotometry].
A simple and direct method for determining lead in blood by flameless atomic absorption spectrophotometry was developed by modifying the method of Hodges and Skelding (1983). In the present method, a graphite tube was coated with molybdenum and both Triton X-100 and phosphoric acid were added to heparinized whole blood. The calibration curve for lead determination, prepared by adding standard l...
متن کاملDirect determination of lead and cadmium in blood and urine by flameless atomic absorption spectrophotometry.
We describe procedures for direct determination of lead and cadmium in blood and urine by flameless atomic absorption spectrophotometry. Before analysis, the samples are pre-ashed in microboats in an ordinary laboratory oven. In this way, many samples can be prepared and pre-ashed simultaneously. We find the procedures presented in this work to be rapid, accurate, and precise.
متن کاملA method for the determination of lead in blood by atomic-absorption spectrophotometry.
Lead in blood was determined by atomic absorption spectrophotometry, using a wet ashing procedure and a procedure in which the proteins were precipitated with trichloroacetic acid. In both methods the lead was extracted into isobutylmethylketone before measurement, using ammonium pyrrolidine dithiocarbamate as chelator. The simpler precipitation procedure was shown to give results identical wit...
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A flameless atomic-absorption system has been developed for the determination of low concentrations of mercury in gaseous, solid and liquid samples of organic and inorganic materials.
متن کاملDetermination of oxalic acid in urine by atomic absorption spectrophotometry.
A method is described for determination of oxalic acid in urine using atomic absorption spectrophotometry. The concentration of urinary oxalic acid is calculated by using the difference between two determinations of calcium: first, the excess of calcium in the supernatant after precipitation as calcium oxalate at pH 5, and second, the total calcium determined at pH less than 1 (endogenous and a...
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ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1968
ISSN: 1351-0711
DOI: 10.1136/oem.25.3.209