泡塑富集—石墨炉原子吸收测试微量金  

Testing Trace Gold by Foamed Plastic Collecting -Graphite Furnace Atomic Absorption Spectrometer

作　　者：刘玲[1] 王全宏[1] 

机构地区：[1]武警黄金第五支队,陕西西安710100

出　　处：《黄金科学技术》2013年第2期45-50,共6页Gold Science and Technology

摘　　要：对微量金测试最佳条件已经有很多探讨和研究。然而,由于地质样品的特殊性、微量金分析的复杂性以及各地区环境和气压的差异,因此所谓的最优化测试条件不是一成不变的。为探究西北地区泡塑富集—石墨炉原子吸收测试微量金的最优技术方案,对泡塑富集、硫脲解脱和石墨炉原子吸收测试微量金中的控制因素,例如浓度、温度和时间等进行了研究,获得了最佳解决方案。对国家一级标准物质和15 000件多元素样品进行分析,其结果符合规范要求;该最佳技术方案适用于泡塑富集—石墨炉原子吸收测试微量金的检测,为微量金测试提供了一种准确实用的方法。Optimum conditions of testing trace gold are reported and studied many in domestic and international literatures.The optimum conditions for determination are diverse due to the particularity of geologic samples and the complexity of analysis trace gold.For researching into the optimum conditions, the control factors such as temperature, concentration and time in testing trace gold which be absorbed and collected by foamed plastic and eluted with thiourea by graphite furnace atomic absorption spectrometer are studied.Through the experimental study ,the best solution of determination is obtained.The method has been applied to the national assay standard and 15 000 geochemical samples, and results of application in practical work conforming standard requirement. The method is applicable to the determination of trace gold.

关 键 词：泡塑富集 石墨炉原子吸收 地质样品 微量金 测试 

分 类 号：O657.31[理学—分析化学]