| 电解液阴极大气辉光放电原子发射光谱检测水硬度 |
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| 引用本文： | 席晓琴,郑培超,王鸿梅,李建权,韩海燕,储焰南.电解液阴极大气辉光放电原子发射光谱检测水硬度[J].分析化学,2010,38(3). |
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| 作者姓名： | 席晓琴 郑培超 王鸿梅 李建权 韩海燕 储焰南 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所环境光谱学研究室,合肥,230031 |
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| 基金项目： | 中国科学院合肥物质科学研究院青年人才基金资助项目 |
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| 摘 要： | 在自制的电解液阴极大气辉光放电原子发射谱(ELCAD-AES)装置上,研究了钙镁标准溶液的特征发射光谱,定量检测了Mg和Ca的含量,两元素的检出限分别为0.2mg/L和0.8mg/L。通过准确性和加标回收实验,以及与乙二胺四乙酸二钠盐络合滴定(EDTA滴定)法测量结果的比较,证明了ELCAD-AES方法测量水硬度的可靠性。测定了沸腾前后的自来水和地下水,以及湖水中Mg和Ca的含量,获得了这些水样的硬度。所建立的ELCAD-AES方法可用于水体硬度或金属元素的快速在线监测。
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| 关 键 词： | 电解液阴极大气辉光放电 原子发射谱 水硬度 钙 镁 |
Determination of Water Hardness by Electrolyte Cathode Atmospheric Glow Discharge Atomic Emission Spectroscopy |
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| XI Xiao-Qin,ZHENG Pei-Chao,WANG Hong-Mei,LI Jian-Quan,HAN Hai-Yan,CHU Yan-Nan.Determination of Water Hardness by Electrolyte Cathode Atmospheric Glow Discharge Atomic Emission Spectroscopy[J].Chinese Journal of Analytical Chemistry,2010,38(3). |
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| Authors: | XI Xiao-Qin ZHENG Pei-Chao WANG Hong-Mei LI Jian-Quan HAN Hai-Yan CHU Yan-Nan |
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| Institution: | Laboratory of Environment Spectroscopy;Anhui Institute of Optics and Fine Mechanics;Chinese Academy of Sciences;Hefei 230031 |
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| Abstract: | An electrolyte cathode atmospheric glow discharge atomic emission spectroscopy( ELCAD-AES) has been developed to determine the hardness of water. By the standard curves of Mg and Ca,the concentration curves of Mg and Ca measurement were obtained. The limits of detection of Mg and Ca were 0. 2 and 0. 8 mg/L,respectively. The precision and recovery were experimentally elucidated,which indicated that the homemade ELCAD-AES system has a good performance. Finally,practical water samples such as tap water, boiled... |
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| Keywords: | Electrolyte cathode atmospheric glow discharge Atomic emission spectroscopy Water hardness Calcium Magnesium |
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