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加标法测试复杂基体粗金中金含量

Determination on Gold Content in Rough Gold of Complex Matrix by Standard Addition Method
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摘要 通过对粗金样品中各杂质元素的研究,确定了样品中铜、铁、镍、钯、铂、铋、锌7种元素适用于该方法的上限值。建立了一种通过加入标准金,降低杂质元素在样品中含量的分析方法,可有效测定复杂基体粗金中的金含量。该方法测得值与理论值基本接近,结果重复性标准偏差为0.92%~2.05%,操作过程简便、测试结果准确,可用于日常生产中对于此类样品的检测。 It is confirmed the upper limit value of copper,iron,nickel,palladium,platinum,bismuth,zinc in sample that applied to the method,through research on each impurity element in rough gold sample.It is established an analysis method that addition of standard gold to decrease impurity element content in sample,it can effectively measure gold content in complex matrix rough gold.The measured value by the method is basically close to theoretical value,the repeated standard deviation of results is 0.92%~2.05%,the operation process is simple,the measured results are correct,it can be applied for detection of the same samples in daily production.
作者 王建军 庄宇凯 徐剑瑛 王绍娟 冯桂坤 杨坤 WANG Jian-jun;ZHUANG Yu-kai;XU Jian-ying;WANG Shao-juan;FENG Gui-kun;YANG Kun(Shandong Zhaojin Gold&Silver Refinery Co.,Ltd.,Yantai,Shandong 265400,China;Zhonghennuo Precious Metals Testing Co.,Ltd.,Yantai,Shandong 265400,China)
出处 《云南冶金》 2023年第4期107-112,共6页 Yunnan Metallurgy
关键词 加标法 复杂基体 粗金 金含量 standard addition method complex matrix rough gold gold content
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