火焰原子吸收分光光度法测定电缆绝缘护套中的镉  

Determination of Cadmium in Isolation and Sheathing of Cables by Flame Atomic Absorption Spectrometry

作　　者：谢静 刘梦琴[2] 朱小明[2] 黄耿[2] 欧淳 方佳丽[2] 

机构地区：[1]衡阳恒飞电缆有限责任公司,湖南衡阳421008 [2]衡阳师范学院化学与材料科学系,功能金属有机材料湖南省重点实验室,湖南衡阳421008

出　　处：《广州化工》2014年第22期113-114,共2页GuangZhou Chemical Industry

基　　金：湖南省科技厅计划项目(2011FJ3134);湖南省十二五规划课题(XJK011CGD033);湖南省重点学科基金资助项目;衡阳师范学院产学研用重点培育项目(12CXYZ02);湖南省大学生研究性学习和创新性实验计划项目(2014年)

摘　　要：采用干法灰化分解试样,在稀硝酸介质中,用火焰原子吸收光谱法测定电缆绝缘护套中镉的含量,建立了火焰原子吸收光谱法测定电缆绝缘护套中镉含量的方法。经过对不同的电缆和护套样品的测试,结果表明：镉在0.0023~4.00μg/mL （r=0.9990）范围内呈良好的线性关系, RSD≤4.3%,检出限为0.0008μg/mL,回收率在96.9%~102.8%之间。该法操作简便、快速,检出限低,选择性好。A method for determination of cadmium in isolation and sheathing of cables by flame atomic absorption spectrometry was established, using dry ashing sample decomposition in dilute nitric acid medium. Through the different sample testing to isolation and sheathing of cables, the experiment indicated that this method was easy to carry out, the precision and sensitivity were high, and the selectivity was good as well. Cd（Ⅱ） had good linear relationship in the range of 0. 002 3~4. 00 μg/mL（r=0. 9990）. RSD was below 4. 3% and recovery was in the range of 96. 9% ~102. 8% and detection limit was 0. 000 8 μg/mL.

关 键 词：电缆 绝缘护套 镉 火焰原子吸收光谱法 

分 类 号：O657.3[理学—分析化学]