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用原子吸收分光光度方法测定纯锡中杂质锌、锑、铋、铜、铁、铅,与常用化学比色法、发射光谱或原子吸收光谱等测定方法相比,具有操作简易快速、无需分离可直接测定、节省试剂、避免环境污染、准确等优点。一、仪器与试剂 1.310型双光束原子吸收分光光度计 2.XWT台式自动平衡记录仪 3.WM—2型无油气体压缩机 4.铜、铁、铋、锑、铅及锌空心阴极灯 5.盐酸(比重1.18～1.19) 6.硝酸(比重1.42)
Determination of impurity zinc, antimony, bismuth, copper, iron and lead in pure tin by atomic absorption spectrophotometry has the advantages of simple and quick operation, no need of separation, compared with the common chemical colorimetry, emission spectrometry or atomic absorption spectrometry Direct determination, saving reagents, to avoid environmental pollution, accuracy and so on. First, the instrument and reagent 1.310 dual-beam atomic absorption spectrophotometer 2.XWT desktop automatic balance recorder 3.WM-2 oil-free gas compressor 4. Copper, iron, bismuth, antimony, lead and zinc hollow cathode lamp 5 Hydrochloric acid (specific gravity 1.18 ~ 1.19) 6. Nitric acid (specific gravity 1.42)