| 极谱法同时测定海水中的铜、镉、铅、锌 |
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| 引用本文： | 贺舒文,刘莹,薛伟峰.极谱法同时测定海水中的铜、镉、铅、锌[J].化学分析计量,2019,28(2):35-38. |
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| 作者姓名： | 贺舒文 刘莹 薛伟峰 |
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| 作者单位： | 中华人民共和国庄河海关,辽宁庄河,116400;中华人民共和国大窑湾海关,大连,116600 |
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| 摘 要： | 建立极谱法同时测定海水中铜、镉、铅、锌的含量。在10.0～35.0℃条件下,试样于–1.15 V恒压下电解,富集在汞电极上生成汞齐,并随电极电位的变化而发生氧化还原反应,产生电流,通过标准加入法进行定性和定量。铜、镉、铅、锌的检出限分别为0.64,0.14,0.17,2.0μg/L,定量限分别为2.5,0.50,0.50,10.0μg/L。样品加标回收率为80.4%～106.0%,测定结果的相对标准偏差为0.43%～6.09%(n=6)。该法具有操作简便、抗干扰性能强、灵敏度高等特点,能够满足海水中铜、镉、铅、锌的监测要求。
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| 关 键 词： | 极谱法 海水 铜 镉 铅 锌 |
Simultaneous determination of copper,cadmium, lead and zinc in seawater by polarography |
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| HE Shuwen,LIU Ying,XUE Weifeng.Simultaneous determination of copper,cadmium, lead and zinc in seawater by polarography[J].Chemical Analysis And Meterage,2019,28(2):35-38. |
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| Authors: | HE Shuwen LIU Ying XUE Weifeng |
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| Institution: | (Zhuanghe Customs of the People’s Republic of China,Zhuanghe 116400,China;Da Yaowan Customs of the People’s Republic of China,Dalian 116600,China) |
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| Abstract: | HE Shuwen;LIU Ying;XUE Weifeng(Zhuanghe Customs of the People’s Republic of China,Zhuanghe 116400,China;Da Yaowan Customs of the People’s Republic of China,Dalian 116600,China) |
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| Keywords: | polarography seawater copper cadmium lead zinc |
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