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提出了微波消解原子吸收法测定改性羽毛中铜、锌、铬、铅、镉的分析方法。采用在密闭容器中,用HNO3和HClO4混酸做溶剂在微波状态下消解改性羽毛样品,样品溶解完毕泄压后,定容,用快速序列分析功能的原子吸收仪同时测定铜、锌、铬、铅、镉的含量,快速高效。同时考察了微波消解称样量、溶剂用量及共存离子对分析结果的影响,其标准样品的测定结果与标准值一致。本法适应于改性羽毛中铜、锌、铬、铅、镉的测定。
A method for the determination of copper, zinc, chromium, lead and cadmium in modified feathers by microwave digestion atomic absorption spectrometry was proposed. In a closed container, HNO3 and HClO4 mixed acid as a solvent to digest the modified feather sample in the microwave state, the sample is dissolved after the pressure relief, constant volume, simultaneous determination of copper, zinc, chromium by atomic absorption spectrometry with rapid sequence analysis function, Lead, cadmium content, fast and efficient. At the same time, the effect of microwave digestion sample amount, solvent dosage and coexisting ions on the analysis results was investigated. The results of standard samples were consistent with the standard values. This method is adapted to the determination of copper, zinc, chromium, lead and cadmium in modified feathers.