摘要
采用光电直读光谱法测定纯金中12种杂质元素,实验考察了冲洗时间、预燃时间和积分时间等仪器工作条件对杂质元素测定的影响,并确定了各杂质元素的最佳分析谱线。方法的检出限为0.39~1.55 mg/kg,精密度为1.40%~7.44%,4个纯金样品本方法测定结果与ICP-AES法测定结果基本一致,准确度与精密度良好。该方法进一步简化了样品预处理过程,提高了检测效率,适合大批量纯金样品的分析测定。
12 impurity elements in pure gold are determined by photoelectric direct-reading spectrometry.The effects of instrument working conditions such as flush time,pre-ignition time and integration time on the determination of impurity elements were discussed,and the best analysis spectral line for each impurity element was determined.The detection limits of this method are 0.39-1.55 mg/kg,and the precision is 1.40%-7.44%.The test results of 4 pure gold samples are consistent with those of ICP-AES,and the accuracy and precision are both good.The method further simplifies the sample pretreatment process,improves the detection efficiency,and is suitable for the determination of large quantities of pure gold samples.
作者
邱川
周雄飞
张辉
郑伟如
Qiu Chuan;Zhou Xiongfei;Zhang Hui;Zheng Weiru(Urumqi City Inspection and Testing Center;Jiangsu Skyray Instrument Co.,Ltd.)
出处
《黄金》
CAS
2020年第8期91-94,共4页
Gold
关键词
光电直读光谱法
纯金
杂质元素
检出限
分析谱线
photoelectric direct-reading spectrometry
pure gold
impurity element
detection limit
analysis spectral line
作者简介
邱川(1968-),男,四川宜宾人,高级工程师,从事珠宝、首饰等鉴定工作,乌鲁木齐市天山区中山路33号,乌鲁木齐市检验检测中心,830020,E-mail:1547861995@qq.com;通信作者:张辉,E-mail:davidzhh@126.com,15051655619。
