| 3,5-diBr-DMPAP直接光度法测定游泳池水中铜 |
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| 引用本文： | 马美萍,周茹,曹建明.3,5-diBr-DMPAP直接光度法测定游泳池水中铜[J].广东微量元素科学,2010,17(4):60-63. |
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| 作者姓名： | 马美萍 周茹 曹建明 |
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| 作者单位： | 温州医学院环境与公共卫生学院,浙江,温州,325000 |
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| 摘 要： | 建立了一种在表面活性剂聚乙二醇辛基苯基醚(OP)存在下,以2-(3,5-二溴-2-吡啶偶氮)-5-二甲氨基酚(简称3,5-diBr-DMPAP)作显色剂,用分光光度法直接测定游泳池水中铜的新方法。结果表明,在pH4.0的乙酸-乙酸钠缓冲溶液中,以580 nm为测定波长,可选择性测定游泳池中微量铜,线性范围达0.0～0.6μg/mL,表观摩尔吸光系数为5.568×104L.mol-1.cm-1。该法操作快速、简便,结果灵敏可靠,应用于游泳池水中铜的测定,结果与原子吸收法基本一致。
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| 关 键 词： | 铜 3 5-diBr-DMPAP 分光光度法 |
Determination of Cu in Water of Pools by 3,5-diBr-DMPAP Direct Spectrophotometric Method |
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| MA Meiping,ZHOU Ru,CAO Jianming.Determination of Cu in Water of Pools by 3,5-diBr-DMPAP Direct Spectrophotometric Method[J].Trace Elements Science,2010,17(4):60-63. |
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| Authors: | MA Meiping ZHOU Ru CAO Jianming |
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| Institution: | (School of Environmental Science and Public Health,Wenzhou Medical College,Wenzhou 325000,China) |
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| Abstract: | A new spectrophotometric method has been developed for the highly selective determination of water samples of pools with 3,5-diBr-DMPAP in the presence of OP at pH 4.0 buffer solution.The maximum absorption of the complex compound was at 580 nm,the linearity of test was up to 0.6 μg/mL,the molar absorption coefficient is 5.568×104 L·mol-1·cm-1.The method is simple,sensitive,rapid and accurate.It has been used for the determination of Cu（Ⅱ）in every kinds of water samples of pools,and the analytical results agree well with that of ASS method. |
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| Keywords: | 3 5-diBr-DMPAP |
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