Traces of cadmium in human scalp hair measured by electrothermal atomic absorption spectrometry with the slurry sampling technique.

Determination of Cadmium by Electrothermal Atomic Absorption Spectrometry after its Separation and Preconcentration by Syringe to Syringe Dispersive Liquid Phase Microextraction-Solidified Floating Organic Drop

The application of syringe to syringe dispersive liquid phase microextraction-solidified floating organic drop was extended for the separation and preconcentration of trace amounts of cadmium ions from water and cereal samples. The extracted cadmium was quantified by electrothermal atomic absorption spectrometry. Factors affecting the complex formation as well as microextraction efficiency such...

Direct determination of cadmium and lead in aerosols in the Zasavje region in Slovenia employing electrothermal atomic absorption spectrometry

Investigations of air pollution were carried out in Trbovlje, Zagorje and Hrastnik, three towns in the Zasavje urban region in Slovenia with its dense industry. This region has a typical geographic location in small, closed side valleys of the Sava river. Special pumps were equipped with a Nucleopore-Costar polycarbonate membrane filters (pore size 0.4 ĵ m) to determine cadmium and lead in resp...

Elimination of Chemical and Spectral Interferences in Measurement of Trace Elements in Urine and Blood by Combined Electrodeposition-Electrothermal Atomic Absorption Spectrometry

A combined electrodeposition-ETAAS technique has been applied to the analysis of Pb, Cd, Co, Ni, Cr and Mn in biological samples in order to overcome interferences and to minimize sample pretreatment. It requires minimal sample preparation with the electrolysis process aiding partial decomposition of the organic matrix, adequate for the release and deposition of trace elements. In an initia...

Cr (VI)/Cr (III) SPECIATION BY IN SITU ELECTRODEPOSITION ONTO TUBE PRIOR TO ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY

Determination of lead in fish samples by slurry sampling electrothermal atomic absorption spectrometry.

Ultrasonic slurry sampling electrothermal atomic absorption spectrometry (USS-ETAAS) was been applied to the determination of lead in several fish samples. The influences of instrument operating conditions and slurry preparation on the signal were examined. Palladium and ammonium nitrate were used as the modifier to improve the signal. Since the sensitivity to lead in various fish slurries and ...