| 1-(2-苯并噻唑偶氮)-2-羟基-3-萘甲酸与镍(Ⅱ)的显色反应研究及应用 |
| |
| 引用本文： | 马卫兴,李艳辉,钱保华,许兴友. 1-(2-苯并噻唑偶氮)-2-羟基-3-萘甲酸与镍(Ⅱ)的显色反应研究及应用[J]. 冶金分析, 2005, 25(3): 45-47 |
| |
| 作者姓名： | 马卫兴 李艳辉 钱保华 许兴友 |
| |
| 作者单位： | 淮海工学院化学工程系,江苏连云港,222005 |
| |
| 基金项目： | 江苏省教育厅自然科学基金资助项目(01KJB150011)和淮海工学院学科基金资助项目(XK200310). |
| |
| 摘 要： | 用分光光度法研究了新试剂1-(2-苯并噻唑偶氮)-2-羟基-3-萘甲酸(BTAHN)与镍Ⅱ的显色反应性能。在pH4·6~10·4范围内,BTAHN与镍Ⅱ形成2∶1的蓝色络合物,该络合物的最大吸收波长λmax在612nm处,25mL溶液中镍的质量在0~34μg范围内服从比尔定律,测定的表观摩尔吸光系数ε612为3·52×104,所拟方法用于合金钢样品中微量镍的测定,结果满意。
|
| 关 键 词： | 1-(2-苯并噻唑偶氮)-2-羟基-3-萘甲酸 分光光度法 镍 |
| 文章编号： | 1000-7571(2005)03-0045-03 |
Study on chromogenic reaction of nickel(Ⅱ) with 1-(2-benzothiazolylazo)-2-hydroxy-3-naphthoic acid and its application |
| |
| MA Wei-xing,LI Yan-hui,QIAN Bao-hua,XU Xing-you. Study on chromogenic reaction of nickel(Ⅱ) with 1-(2-benzothiazolylazo)-2-hydroxy-3-naphthoic acid and its application[J]. Metallurgical Analysis, 2005, 25(3): 45-47 |
| |
| Authors: | MA Wei-xing LI Yan-hui QIAN Bao-hua XU Xing-you |
| |
| Abstract: | The chromogenic reaction of nickel ? with a new reagent 1-(2-benzothiazolylazo)-2-hydroxy-3-naphthoic acid (BTAHN) has been studied by spectrophotometric method in detail.The results show that in the medium of pH 4.6-10.4,nickel ? reacts with the reagent BTAHN to form a stable blue complex (Ni?BTAHN=12). The maximum absorption peak of this complex lies at 612 nm with an apparent molar absorptivity (612) of 3.5210~4 Lmol~(-1)cm~(-1) and Beer's law is obeyed in the concentration range of 0-34 g/25 mL for nickel.The proposed method has been applied to the direct determination of nickel in standard alloy steel samples with satisfactory results. |
| |
| Keywords: | 1-(2-benzothiazolylazo)-2-hydroxy-3-naphthoic acid spectrophotometry nickel |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
