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| 混合胶束增溶分光光度法测痕量钴(Ⅱ) | |
| 引用本文： | 马玲,张晓妮,赵桦萍,金满江.混合胶束增溶分光光度法测痕量钴(Ⅱ)[J].高师理科学刊,2003,23(2):35-37. |
| 作者姓名： | 马玲 张晓妮 赵桦萍 金满江 |
| 作者单位： | 1. 齐齐哈尔大学,化学系,黑龙江,齐齐哈尔,161006 2. 大庆高等专科学校,初等教育系,黑龙江,大庆,163712 3. 齐齐哈尔市消防支队,黑龙江,齐齐哈尔,161005 |
| 摘 要： | 研究了在Tween -80和CTMAB混合离子表面活性剂存在下 ,钴与 1 -( 2 -吡啶偶氮 ) -2 -奈酚 (PAN)的显色反应 .结果表明 ,在碱性条件下 ,Co2 + 与PAN ,CTMAB ,Tween -80形成绿色络合物 ,λmax=5 84nm ,ε6 0 5=8.7× 1 0 4 L·mol- 1 ·cm- 1 ,钴在 0～ 1 0 μg 2 5mL范围内服从比耳定律 .在拟定条件下 ,以混合试剂掩蔽 ,直接光度法测定工业废水中微量钴 ,结果满意 |
| 关 键 词： | 钴 1-(2-吡啶偶氮)-2-奈酚(PAN) 光度法 |
| 文章编号： | 1007-9831(2003)02-0035-03 |
| 修稿时间： | 2003年3月27日 |
Determination of trace cobalt mixed surfactants and spectrophotometry |
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| MA Ling ,ZHANG Xiao-ni ,ZHAO Hua-ping ,JIN Man-jiang.Determination of trace cobalt mixed surfactants and spectrophotometry[J].Journal of Science of Teachers＇College and University,2003,23(2):35-37. | |
| Authors: | MA Ling ZHANG Xiao-ni ZHAO Hua-ping JIN Man-jiang |
| Institution: | MA Ling 1,ZHANG Xiao-ni 2,ZHAO Hua-ping 1,JIN Man-jiang 3 |
| Abstract: | The color reaction of cobalt(Ⅱ) and PAN phenyl fuorone is studied in the presence of mixed surfactants CTMAB and Tween-80.The results show that Co 2+ -PAN-CTMAB and Tweem-80 form into the purplish green complex under the condition at acerbity.Its absorption maximum is 8.7×10 4 at 584 nm.Bee's low is obeyed for cobalt(Ⅱ) in the range of 0～10 μg/25mL.The directly spectrophotometric method has been applied to determine trace amount of cobalt(Ⅱ) in the industrial liquid waster,vitamin B 12 by mixed reagent for masking agent. |
| Keywords: | cobalt(Ⅱ) PAN spectrophotometry |
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