ICP-AES法测定金合金首饰中铱元素分析谱线研究  

Study on Spectral Lines of Determination of Iridium in Gold Alloy Jewelry by ICP-AES

作　　者：王萍[1,2,3] 刘雪松[1,2] 马霄[1,2] 山广祺[1,2,3] 祝培明 WANG Ping LIU Xue-song MA Xiao SHAN Guang-qi ZHU Pei-ming(National Gold ＆ Diamond Testing Center, Jinan 250014, China Shandong Institute of Metrology, Shandong Provincial Key Laboratory of Metrology andMeasurement, Jinan 250014 , China Social Justice and Measurement Station of Shandong Province, Jinan 250014, China)

机构地区：[1]国家黄金钻石制品质量监督检验中心,山东济南250014 [2]山东省计量科学研究院,山东省计量检测重点实验室,山东济南250014 [3]山东省社会公正计量行,山东济南250014

出　　处：《分析测试技术与仪器》2017年第2期100-105,共6页Analysis and Testing Technology and Instruments

基　　金：山东省质监系统科技计划项目(2016KY05)

摘　　要：采用电感藕合等离子体发射光谱法(ICP-AES)对金基体溶液中的Ir进行测试,分析讨论了国家标准GB/T21198.4-2007和美国热电Thermo IRIS Intrepid II型ICP光谱仪推荐的几种Ir谱线在金基体中的干扰问题.综合谱线强度、灵敏度、标准曲线相关系数、光强值、干扰谱线位置等因素,确定212.681 nm是该型ICP光谱仪测定金首饰中Ir元素的最佳谱线.ICP-AES was employed to measure Ir in gold matrix standard solutions. The recommended several Ir spectral lines of National standard GB/T21198.4-2007 and Thermo IRIS Intrepid Ⅱ ICP spectrometer were analyzed and discussed.The interference problems in the gold matrix were compared. After comprehensive study of spectral line intensity, sensitivity, standard curve correlation coefficient, light intensity value, interference line position and other factors, 212.681 nm has been confirmed as the best spectral line for testing Ir element in gold jewelry by this model of ICP spectrometer.

关 键 词：电感藕合等离子体发射光谱 金合金 铱 谱线选择 

分 类 号：O657.3[理学—分析化学]