仪器分析法测定金属材料中铋的进展

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铋的化学分析法已有人综述,最近赵慧春等又对吸光光度法测定铋的近况作了报道。近年来,铋的仪器分析方法研究报道日见增多,尤其在冶金材料分析中对微量或痕量铋的仪器分析研究进展较快。本文综述了原子吸收光谱法、原子发射光谱法、原子荧光光谱法,X射线荧光光谱法和电化学分析法测定金属材料中铋的进展。1 原子吸收光谱法石墨炉原子吸收光谱法测定镍基体试样和铝、铅、锑、硅共存试样中的铋时干扰的消除研究有了进展。李报厚考察了铅在试样中的作用,提出用铅作为基体改进剂可消除负干扰,测定下限为0.0002%,方法简单、迅速、准确可靠。石墨炉原子吸收法固体试样直接分析技术具有下需要试样分解、分离和浓缩等预处理步骤的优点,因而分析过程短,避免了试样的沾污和损失。然而设计的固体进样品操作比较麻烦和合适的标准试样选择困难,影响固体进样法的广泛使用。柳志龙等 Chemical analysis of bismuth has been reviewed. Recently, Zhao Huichun et al. Reported the determination of bismuth by spectrophotometry. In recent years, the research reports on the analytical methods of bismuth have been increasing day by day, especially the research on the analysis of trace or trace bismuth in the analysis of metallurgical materials has progressed rapidly. This article reviews the progress in the determination of bismuth in metallic materials by atomic absorption spectroscopy, atomic emission spectroscopy, atomic fluorescence spectroscopy, X-ray fluorescence spectrometry and electrochemical analysis. 1 Atomic Absorption Spectrometry Graphite Furnace Atomic Absorption Spectrometry Determination of nickel matrix sample and aluminum, lead, antimony, silicon coexistence of bismuth in the sample when the elimination of interference has been studied. The thickness of the lead in the sample was investigated by Lee et al. It is proposed that the use of lead as a matrix modifier can eliminate the negative interference and the lower limit of determination is 0.0002%. The method is simple, rapid, accurate and reliable. Graphite Furnace Atomic Absorption (FAA) solid sample direct analysis technology has the advantages of the pretreatment steps such as sample decomposition, separation and concentration, so the analysis process is short, avoiding the contamination and loss of the sample. However, the design of the solid sample operation is too cumbersome and the choice of a suitable standard sample difficult, affecting the widespread use of solid injection method. Liu Zhilong and so on
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廊坊市安次经济开发区是河北省省级开发区,创建于2007年7月,总规划面积22平方公里,位于廊坊市城区西南部,区位优势得天独厚。距离北京40公里、距离天津60公里、距离南苑机场5