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7.435  Articles
1 of 745 pages  |  10  records  |  more records»
In the present work the air/acetylene flame atomic absorption spectrometry was used for bismuth determination in complex oxides. Interference studies were carried out, and interference with vanadium and molybdenum was detected. The method of standard addi... see more

Mercury might be liberated from dental amalgam in toxic amounts for humans, which represent a real health risk. This work presents the direct determination in vitro liberated mercury from amalgam submerged in artificial saliva by cold vapor atomic absorpt... see more

A simple, reliable and rapid method for the extraction of ultra-trace copper(II) using nanoporous SBA-15 sorbent modified with a thiocarbo­hyd­razide ligand, and determination by flame atomic absorption spectrometry is presented. The optimum parameters of... see more

Pre concentration of  Cd(II)  in water samples was carried out by using  column solid phase extraction  DOWEX 50WX2 prior to flame atomic absorption spectrometry analized. The optimum  extraction conditions such as pH (5),  s... see more

Introduction. Mineral elements are enzyme cofactors, constituents of vitamins, hormones, all body cells and tissues, they are essential for its normal metabolism: homeostasis support, progress of biochemical, enzymatic, plastic, hormonal, regulatory and m... see more

The evaluation of uncertainty measurement in the determination of Fe content in powdered tonic food drink using graphite furnace atomic absorption spectrometry was carried out. The specification of measurand, source of uncertainty, standard uncertainty, c... see more

A cloud point extraction method was presented for preconcentration of copper in various samples. After complexation with 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazoline-5-one (ADPP) or N-Benzoyl-N-phenylhydroxylamine (BPA)  in water, analyte ions are quan... see more

Introduction. Mineral elements are enzyme cofactors, constituents of vitamins, hormones, all body cells and tissues, they are essential for its normal metabolism: homeostasis support, progress of biochemical, enzymatic, plastic, hormonal, regulatory and m... see more

The article is devoted to the problem of quality assurance of medicinal products, namely the determination of elemental impurity concentration compared to permitted daily exposures for and the correct choice analytical methods that are adequate to the for... see more

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