Cl. the Determination of Lead
نویسندگان
چکیده
FURTHER experience of the method of Tompsett & Anderson [1935] for the estimation of lead in human tissues and excreta has shown that in the analysis of different types of material modifications are an advantage in special cases. Also certain general improvements make it desirable to describe the method in more detail. A survey of the various methods for estimating minute amounts of lead in biological materials is not included as this has been done by us [1935] and more recently by Minot [1938]. The method consists essentially of three stages: (1) destruction of organic material, (2) extraction of Pb with ether as a complex with Na diethyldithiocarbamate, (3) colorimetric estimation of lead with dithizone.
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