Determination of nickel in active pharmaceutical ingredients by electrothermal atomic absorption spectrometry.

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...

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

Dispersive Liquid-liquid Microextraction Based on Solidification of Floating Organic Drop for Simultaneous Separation/preconcentration of Nickel, Cobalt and Copper Prior to Determination by Electrothermal Atomic Absorption Spectrometry

A dispersive liquid–liquid microextraction based on solidification of floating organic drop for simultaneous extraction of trace amounts of nickel, cobalt and copper followed by their determination with electrothermal atomic absorption spectrometry was developed. 300 μL of acetone and 1-undecanol was injected into an aqueous sample containing diethyldithiocarbamate complexes of metal ions. For ...

Determination of nickel in biological samples prepared by microwave dissolution using electrothermal atomic absorption spectrometry after extraction with l,Sbis[phenyl-( 2-pyridyl) methylene] thiocarbonhydrazide

An electrothermal atomization atomic absorption spectrometric method for the determination of traces of nickel atIer extraction of the metal into methyl isobutyl ketone containing 1,5-bis[phenyl(2-pyridylhnethylene] thiocarbonhydrazide is suggested. The chief advantage of the method lies in its maximum allowable aqueous-to-organic phase volume ratio of 37. The method was applied to the determin...

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...