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| 微分电位溶出法测定饮用水中砷含量 | |
| 引用本文： | 章建军,章银良,李向力.微分电位溶出法测定饮用水中砷含量[J].安徽农业科学,2010,38(16):8614-8615,8635. |
| 作者姓名： | 章建军 章银良 李向力 |
| 作者单位： | 1. 郑州轻工业学院食品与生物工程学院,河南郑州,450002;河南省食品质量安全控制工程技术研究中心,河南郑州,450002 2. 郑州轻工业学院食品与生物工程学院,河南郑州,450002 3. 河南省食品质量安全控制工程技术研究中心,河南郑州,450002 |
| 基金项目： | 河南省重点科技攻关项目 |
| 摘 要： | 目的]为砷的检测寻求一种快速、简便的新方法。方法]研究在铜离子存在条件下,通过玻碳悬汞电极测定饮用水中砷含量,考查了电沉积电位、电沉积时间、平衡电位、平衡时间对测定结果的影响。结果]铜离子浓度范围为42.8-57.145 ng/ml;随着电沉积电位、平衡电位的增大,底液空白和加标液的峰高及差比值先增大后减小;随着电沉积时间、平衡时间的增加,底液空白和加标液的峰高先增大后趋向平缓,而其差比值先增大后减小;当电沉积电位为-1.1 V、电沉积时间为100 s、平衡电位为-0.7 V、平衡时间为30 s时,测定结果最好。测定砷的线性范围为0-200 ng,回收率为93.2%-105.4%,相对标准偏差为2.35%。结论]该法操作快速、简便,结果准确、可靠。 |
| 关 键 词： | 微分电位溶出法 饮用水 砷 |
Determination on Arsenic in Drinking Water by Differential Potentiometric Stripping Analysis |
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| ZHANG Jian-jun et al.Determination on Arsenic in Drinking Water by Differential Potentiometric Stripping Analysis[J].Journal of Anhui Agricultural Sciences,2010,38(16):8614-8615,8635. | |
| Authors: | ZHANG Jian-jun |
| Institution: | ZHANG Jian-jun et al (Zhengzhou University of Light Industry Food and Bioengineering,Zhengzhou,Henan 450002) |
| Abstract: | Objective] The aim of the study was to seek a quick,simple and new method for the detection of arsenic.Method]In copper ions conditions,drinking water arsenic content was determined through glassy carbon mercury membrane electrode.The effect of electron accumulation potential,electron accumulation time,balance potential,balance time on determination results was examined.Result] The copper ions concentration range was 42.8-7.145 ng/ml;As the electron accumulation potential,balance potential increased,the ... |
| Keywords: | Differential potentiometric stripping Drinking water Arsenic |
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