| 酸溶法用于聚合氯化铝中铅、镉测定前处理的研究 |
| |
| 引用本文： | 杜达安,陈玮.酸溶法用于聚合氯化铝中铅、镉测定前处理的研究[J].华南预防医学,1998(2). |
| |
| 作者姓名： | 杜达安 陈玮 |
| |
| 作者单位： | 广东省卫生防疫站!510300 |
| |
| 摘 要： | 用盐酸溶解聚合氯化铝，代替GB15892－1995国标中的前处理，以火焰原子吸收法直接测定其中的铅、镉含量。回收率铅为89．0－93．0％，镉为90.5－97．0％，其变异系数分别为0．82－2.92％、1．25－5．53％。仪器灵敏度铅、镉分别为0．4mg/L,0．03mg/L。取样品5．0ml，最低检出浓度铅、镉分别为4mg/L，0.3mg/L。用该法测定，不受铅、铁等多种元素的干扰。建议推广使用。
|
| 关 键 词： | 聚合氯化铝 酸溶法 铅 镉 |
Research on the Pretreatment of Determination of Pb and Cd Content Content in Aluminium Polychlorid by Acid-soluble Method |
| |
| Du Daan , Chen Wei.Research on the Pretreatment of Determination of Pb and Cd Content Content in Aluminium Polychlorid by Acid-soluble Method[J].South China JOurnal of Preventive Medicine,1998(2). |
| |
| Authors: | Du Daan Chen Wei |
| |
| Institution: | Health and Epidemic Prevention Station of Guangzhou 510300 |
| |
| Abstract: | Aluminium polychlorid was dissolved with hydrochloric acid (HCL) instead of the pretreatment method in state standard (GB15892-1995), and the content of Pb and Cd in it were directly tested by flame atomic absorption spectrometry(FASS). The rescovery rates of Pb and Cd were 89.0-93 .0% and 90.5-97 .0% respectively; the coefficients of variation(CV) were 0.82- 2.92% and 1 .25%-5 .53 respectively; the instrnmentd Sensitivitys were 0. 4mg/L and 0. 03mg/L respetively. The minimum detectable concentrations (MDC) of Pb and Cd were 4mg/L and 0. 3mg/L respectively in 5 .0ml sample. This method was not interfered by Al. Fe and other elements, so it could be ed widely. |
| |
| Keywords: | Aluminium Polychlorid Acid-Soluble Method Pb Cd |
| 本文献已被 CNKI 等数据库收录！ |
