| 活性炭吸附富集分光光度法测定水中的痕量钒 |
| |
| 引用本文： | 刘奇,罗立强.活性炭吸附富集分光光度法测定水中的痕量钒[J].河南师范大学学报(自然科学版),1996,24(4):48-51. |
| |
| 作者姓名： | 刘奇 罗立强 |
| |
| 作者单位： | 河南师范大学化学系 |
| |
| 摘 要： | 本文拟定了用活性炭对水中痕量钒（Ⅴ）进行预富集的方法，研究了活性炭对水中痕量钒的吸附和解吸条件，以及活性炭对钒的吸附容量．５０ｍｇ活性炭可以对５００ｍｌ水中８０μｇ以内的钒进行定量回收，回收率在９３％～１０４％之间，同时可以除去干扰测定的金属离子，最后用分光光度法通过做工作曲线来测定水中的痕量钒，工作曲线的线性回归方程为Ａ＝４．９×１０－２＋０．０１５７ｃ（μｇ／Ｌ），相关系数ｒ＝０．９９７１．利用本方法对合成海水样品中的痕量钒进行分析测试，得到满意的结果．
|
| 关 键 词： | 钒 活性炭 分光光度法 |
Spectrophotometric Determination of Vanadium by Accumulation with Activated Carbon |
| |
| Liu Qi,Lou Liqiang,Yan Zhaoqiang.Spectrophotometric Determination of Vanadium by Accumulation with Activated Carbon[J].Journal of Henan Normal University(Natural Science),1996,24(4):48-51. |
| |
| Authors: | Liu Qi Lou Liqiang Yan Zhaoqiang |
| |
| Abstract: | Vanadium was adsorbed first on 50 mg activated carbon powder at pH 5, then was desorbed by 20 ml of boiling sodium hydroxide solution of pH 10. By this process vanadium can be separatedfrom many metal ions such as Fe3+, Co2+, Ni2+, Cu2+, Mn2+, Hg2+, Cd2+, Zn2+, Ph2+, Sn2+, Al3+, Ti (Ⅵ)etc. The method is simple and sensitive. Vanadium of μg level in 500 ml water can be determinated by spectrophotometry, the results are satisfactory. |
| |
| Keywords: | vanadium activated carbon spectrophotometry |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
