摘要
文中采取酸溶试样制成母液,稀释后作试液,控制试液、混合工作标准溶液和试样空白三者的酸性保持一致,同步测量。结果表明,线性相关系数铜>0.999、铅和锌均是0.998,检出限为铜0.007μg/m L、铅0.033μg/m L、锌0.012μg/m L,加标回收率铜95.0%~99.5%、铅99.1%~107.0%、锌95.6%~101.3%。用国家标准样品、实验室留存样品试验,测定结果准确一致。
In the article,acid soluble samples were used to prepare the mother solution,which is diluted and used as the test solution.The acidity of the test solution,mixed working standard solution,and sample blank is controlled to maintain consistency and measured synchronously.The results showed that the linear correlation coefficient for copper>0.999,lead and zinc were both 0.998,and the detection limit was 0.007μG/mL for copper,0.033μG/mL for lead,0.012μG/mL for zinc,with recovery rates of 95.0%to 99.5%for copper,99.1%to 107.0%for lead,and 95.6%to 101.3%for zinc.The test results were accurate and consistent using national standard samples and laboratory retained samples.
作者
杨玉姬
YANG Yuji(Datian Metrology and Quality Inspection Institute,Datian 366100,Fujian China;Fujian Inspection Center for Mining Machinery Quality Supervision and Casting Products,Datian 366100,Fujian China)
出处
《市场监管与质量技术研究》
2023年第2期21-24,共4页
Market Regulation and Quality Technology Research
关键词
矿石
铜
铅
锌
原子吸收法
Ore
Copper
Lead
Zinc
Atomic absorption spectrometry
