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 bio...

For routine screening of employees in the lead industry, a method for determination of urinary lead was developed in which this element is removed from urine by means of a chelating agent, eluted, and determined by a modified dithizone method. The method gives values which are about 5% below those obtained by the wet ashing technic, with a precision of ± 2.1% in the range of 2-15 jig. of lead p...

In lead poisoning the determination of the concentration of lead in the blood is a useful aid in diagnosis and also in the supervision of treatment. For clinical purposes, an extremely accurate result is not necessary. It may be much more important to learn quickly that the lead content of the blood is within a certain significant range of values than to learn much later the value correct to 0 ...

the aim of this work was to develop a new and simple coacervative extraction method for the preconcentration and spectrophotometric determination of cu(ii) in water samples. dithizone was used as the chelating agent while an anionic surfactant, namely sodium dodecyl sulfate (sds), was used as extracting agent at room temperature. central composite design (ccd) based on response surface methodol...

ABSTRACT. A novel distorted square-planar palladium(II) complex of the type [Pd(Hdz)(PPh3)Cl], where (Hdz = dithizone mono deprotonate and PPh3 triphenylphosphine), was synthesized in dichloromethane reactions between PdCl2 a mixture Hdz PPh3. The new Pd(II) has been identified by FT-IR, electronic spectra, DFT calculations, molar conductivity, single-crystal X-ray diffraction. An diffraction s...