Semi-automatic determination of lead in whole blood

Semi-automatic determination of lead in whole blood.

The procedure developed by Browett and Moss (1964) for the semi-automatic determination of the lead content of urine has been adapted for the determination of lead in blood. Determinations are normally carried out in duplicate on 2.0 ml. samples of whole blood and the minimum sample size is 0.5 ml. The organic substances present in blood are destroyed by a manual wet-oxidation procedure and the...

Stereospecific Determination of Mefloquine in Whole Blood by HPLC

Mefloquine, as a racemic mixture, is used for the treatment and prophylaxis of malaria. Stereoselective pharmacodynamic and pharmacokinetic differences has been observed for mefloquine. In this study a modified stereoselective HPLC method is presented for determination of mefloquine (MFQ) enantiomers in whole blood. The assay involved liquid-liquid extraction of MFQ from biological fluids with ...

Quantifying cadmium and lead in whole blood.

In this issue of Clinical Chemistry, an electrochemical method is described for the simultaneous measurement of cadmium and lead in whole blood. Exposure to these toxic metals is an inevitable consequence of life in industrialized society. Blood Pb is currently measured, with little interlaboratory disagreement, by atomic absorption or electrochemical methods. In contrast, despite numerous atte...

Determination of pyrimidine 5'-nucleotidase (P5N) activity in whole blood as an index of lead exposure.

A simple method for determining pyrimidine 5'-nucleotidase (P5N) activity in whole blood has been developed, inhibiting the plasma activity for UMP-hydrolysis by concanavalin (Con A). Con A specifically inhibits the activity of plasma 5'-nucleotidase (5N) but does not affect erythrocyte P5N activity. The anticoagulant EDTA partially inhibits 5N activity but slightly activates P5N. P5N activity ...

Spectrographic determination of lead in blood.