饮用水中镉(Ⅱ)突发性污染监测技术
详细信息Monitoring technology of emergency cadmium pollution in drinking water
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摘要: 利用鲁米诺—铁氰化钾发光体系,结合流动注射技术,建立了一种对饮用水中Cd（Ⅱ）浓度实时监测的新方法。在最佳实验条件下,该方法的线性范围为5.0×10-4～5.0×10-2mg/mL,检出限为2.6×10-5mg/mL,RSD为1.9%（n=11）。结果表明,该方法具有检测范围宽,简单快速,成本低廉等优点,能实现对江河水和饮用水Cd（Ⅱ）突发性污染的在线监测,为将来构建饮用水预警机制提供技术支持。Abstract: A new novel for real-time monitoring of the concentration of Cd (Ⅱ) in drinking water was established by utilizing Luminol-potassium ferricyanide chemiluminescence system combined with flow injection technique.Under the optimal experimental condition, the linear range for Cd (Ⅱ) determination was 5.0×10-4～5.0×10-2 mg/mL.The detection limit was 2.6×10-5 mg/mL.And the relative standard deviation for the determination was 1.9% (n=11) .As the result indicated, this method had the advantages of wider detection range, simpler and faster operation, as well as lower cost.This method could realize the on-line monitoring of sudden Cd (Ⅱ) pollution in rivers and drinking water and provide technical support for the construction of early warning mechanism.
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[1] 王桂芬, 卢广.重金属污染:一个时代的痛楚忧伤[J].社会与公益, 2011 (1) :76-83. [2] 黄海涛, 梁延鹏, 魏彩春, 等.水体重金属污染现状及其治理技术[J].广西轻工业, 2009 (5) :99-100. [3] 刘素华.2000-2009年我国重金属污染治理领域科技文献分析[J].企业技术开发, 2010, 29 (13) :104-107. [4] 《中国经济周刊》评论员.广西镉污染的冷思考[J].中国经济周刊, 2012 (5) :4. [5] 中华人民共和国国家标准卫生标准GB5749-2006生活饮用水卫生标准[S]. [6] Elsenhans B, Hunder G, Strugala G, et al.Longitudinal pattern of enzymatic and absorptive functions in the small intestine of rats after short-term exposure to dietary cadmium chloride[J].Archives of Environmental Contamination and Toxicology, 1999, 36 (3) :341-346.
[7] Weidner W J, Sillmen A J.Low levels of cadmium chloride damage the corneal endothelium[J].Archives of Toxicology, 1997, 71 (7) :455-460.
[8] 谢黎虹, 许梓荣.重金属镉对动物及人类的毒性研究进展[J].浙江农业学报, 2003, 15 (6) :376-381. [9] 朱梅年.微量元素与健康[M].贵阳:贵州人民出版社, 1980:85. [10] 由业诚, 李玉光, 郭明, 等.高效液相色谱光度法测定痕量镉和锌的研究[J].光谱实验室, 2001, 18 (2) :222-225. [11] 宁文吉, 张桂芳, 董桂贤.水中镉的达旦黄-吐温80分光光度快速测定法[J].职业与健康, 2006, 22 (1) :33. [12] 陈峰.石墨炉原子吸收光谱法测定紫菜中的镉[J].中国卫生检验杂志, 2004, 14 (5) :581. [13] Bahemuka T E, Mubofu E B.Heavy metals in edible green vegetables grown along the sites of the Sinza and Msimbazi rivers in Dar es Salaam, Tanzania[J].Food Chemistry, 1999, 66 (1) :63-66.
[14] 张卫华, 金贞淑, 赵丹, 等.极谱分析法连续测定痕量铅和镉[J].光谱实验室, 2002, 19 (3) :335-337. [15] 燕廷, 朱定波, 唐书泽, 等.鲁米诺-铁氰化钾流动注射化学发光法测定饮用水中铅[J].广东农业科学, 2011 (11) :124-127. [16] 朱粉霞, 杨德五, 张小燕, 等.流动注射化学发光法测定食品营养添加剂中铅[J].食品科学, 2003, 24 (8) :102-104. [17] George Z, Tsogas D L.Determination of the pesticide carbaryl and its photodegradation kinetics in natural waters by flow injection-direct chemiluminescence[J].Analytica Chimica Acta, 2005 (2) :354-359.
[18] 陈效兰, 徐淑静, 肖柳婧, 等.鲁米诺-铁氰化钾流动注射化学发光法测定头孢拉定[J].分析实验室, 2010, 29 (1) :80-82.
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