Minimization of Cu and Ni interferences in the determination of Sb by hydride generation atomic absorption spectrometry: the use of picolinic acid as masking agent and the influence of l-cysteine
作者： Reinaldo Calixto de Campos , Patricia Grinberg , Iracema Takase , Aderval S Luna
DOI: 10.1016/S0584-8547(02)00012-5
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摘要: Abstract The minimization of copper and nickel interference on the determination antimony by hydride generation atomic absorption spectrometry using picolinic acid l -cysteine as masking agents was studied. Concentrations up to 4000 1000 mg −1 respectively were found be tolerable in presence acid. simultaneous both transition metals could tolerated a mixture -cysteine. In analysis oxide certified reference material good agreement between recommended values verified. A detection limit (3 s, n =10) 0.1 μg Sb g original sample estimated.
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