电弧直读发射光谱法测定地球化学调查样品中银硼锡含量  

Determination of silver,boron and tin in geochemical survey samples by arc direct reading emission spectroscopy

作　　者：王亚娇 张随安 杨春 段玉宇 杨凯淇 王高红 杨中瑞 张伟[3] WANG Yajiao;ZHANG Suian;YANG Chun;DUAN Yuyu;YANG Kaiqi;WANG Gaohong;YANG Zhongrui;ZHANG Wei(Shaanxi Geological Investigation and Experiment Center,Xi'an 710000,China;Ecological Environmental Damage Identification and Assessment Center,Xi’an 710000,China;Shaanxi W ater Conservancy and Eectric Power Survey,Design and Research Institute,Xi'an 710001,China)

机构地区：[1]陕西省地质调查实验中心,陕西西安710000 [2]生态环境损害鉴定评估中心,陕西西安710000 [3]陕西省水利电力勘测设计研究院,陕西西安710001

出　　处：《应用化工》2024年第6期1478-1480,1485,共4页Applied Chemical Industry

基　　金：陕西省公益性地质调查项目(公益[2021]18)。

摘　　要：采用聚光科技E5000电弧直读发射光谱测试地球化学调查样品中银、硼、锡含量。最佳实验条件为:预燃阶段电流5 A,保持10 s;激发阶段电流14 A,保持42 s;积分时间25 s;上电极为平头圆形状,下电极为细颈杯状;锗为内标元素。此条件下,测试样品中银、硼、锡的检出限分别为0.016,0.95,0.32μg/g,精密度在10%以内,测试结果均在标准值范围内。实验方法固体进样,操作简单,测试周期短,污染小,是测试地球化学调查样品中银、硼、锡含量时值得推广的测试方法。Using light gathering technology E5000,arc direct reading emission spectrometry is commonly used to measure the contents of silver,boron and tin in geochemical survey samples.The best experimental conditions are that the current of 5 A in the pre-combustion phase keeps 10 s and the current of 14 A in the excitation phase keeps 42 s;integrating time 25 s;on the electricity is very flat head round shape,under the electricity is very fine neck cup;germanium is the internal standard element.The limits of detection of silver,boron and tin were 0.016,0.95,0.32μg/g,respectively.The precision was less than 10%,and the test results were all within the range of standard values.This experimental method has the advantages of simple operation,short test period and little pollution.It is worthy to be popularized when testing the content of silver,boron and tin in geochemical investigation samples.

关 键 词：地球化学调查样品 银 硼 锡 电弧直读发射光谱仪 

分 类 号：TQ016.1[化学工程] TQ016.5