Determination of lead in biological materials by atomic absorption spectrophotometry

Determination of platinum, palladium, and lead in biological samples by atomic absorption spectrophotometry.

A flameless atomic absorption method for the coextraction of platinum and palladium from biological and environmental samples by high molecular weight amine (HMWA) is given. Also, methods for lead determination in biological samples by use of extraction flameless analysis and direct aspiration-flame analysis are reported. A study of lead contamination of Vacutainer tubes is given.

The determination of magnesium in biological materials by atomic absorption spectrophotometry.

Determination of mercury by atomic-absorption spectrophotometry.

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.

Determination 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...

[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...