Experimental study of reduced size inductively coupled plasma torches
Experimental study of reduced size inductively coupled plasma torches
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小型电感耦合等离子体炬的实验研究
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
C. Wohlers
中科院分区：
文献类型：
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作者：
C. Allemand;R. Barnes;C. Wohlers
电感耦合等离子体炬的新设计体现了光滑的轮廓和锋利的边缘，以实现样品约束的层流，并优化了两个外管的直径比，以简化放电的维护和操作。结果为13毫米和9毫米版本的新配置，并进行了比较的数据为标准的8毫米版本。对于光谱化学分析，与13毫米的火炬获得的检测限约相同，与标准的18毫米和9毫米火炬获得的相似或较差。理论预测，较小的火炬需要更高的磁通量密度的9毫米火炬的操作定量证实。在同等分析性能水平下，13 mm焊炬消耗的功率和气体比标准18 mm焊炬少。比较了两种炬对Al、As、Ba、Ca、Cd、Co、Cr（II）、Cr（I）、Cu、Fe、K、Mg、Mn、Mo、P、Pb、Sn、Sr、Ti、U、V和Zn的测定。（BLM）
A new design of inductively coupled plasma torches embodies smooth contours and sharp edges to achieve laminar flow for sample confinement and an optimized ratio of the diameter of the two outer tubes to ease maintenance and operation of the discharge. Results are presented for a 13-mm and a 9-mm version of the new configuration and are compared to data for a standard 8-mm version. For spectrochemical analyses, the detection limits obtained with the 13-mm torch were about the same as obtained with the standard 18-mm and those obtained with the 9-mm torch were similar or poorer. The theoretical prediction that smaller torches require higher magnetic flux densities was confirmed quantitatively by operation of the 9-mm torch. The 13-mm torch consumed less power and gas than the standard 18-mm torch at equivelent analytical performance level. The torches were compared for the determination of Al, As, Ba, Ca, Cd, Co, Cr(II), Cr(I), Cu, Fe, K, Mg, Mn, Mo, P, Pb, Sn, Sr, Ti, U, V, and Zn. (BLM)