| 水体中总有机卤化物的测定 |
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| 引用本文： | 邹惠仙,熊琦,徐旭,许鸥泳.水体中总有机卤化物的测定[J].环境科学,1995,16(4):57-60. |
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| 作者姓名： | 邹惠仙 熊琦 徐旭 许鸥泳 |
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| 作者单位： | 南京大学环境科学与工程系 |
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| 基金项目： | 国家“八五”科技攻关课题 |
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| 摘 要： | 研究一种测定水体中有冲有机卤化物（ＴＯＸ）含量的方法，分别通过气提和乙醚萃取并使用高温热解分光光度法测定挥发性有机卤（ＰＯＸ）和非挥发有机卤（ＮＰＯＸ），方法检测限为１μｍｏｌ／Ｌ，变异系数〈３％，测得１０种不同类型的模拟化合物的平均回收率为８１％，自来水测定结果ＴＯＸ为２１７－４８３μｇ／Ｌ。
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| 关 键 词： | 总有机卤化物 高温 热解 分光光度法 水质分析 |
| 收稿时间： | 1/7/1995 12:00:00 AM |
Determination of Total Organic Halogen(TOX)in Water |
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| Zou Huixian.Determination of Total Organic Halogen(TOX)in Water[J].Chinese Journal of Environmental Science,1995,16(4):57-60. |
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| Authors: | Zou Huixian |
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| Institution: | Dept. of Environ. Set. and Eng., Naming Unly., Nanjing 210093;Dept. of Environ. Set. and Eng., Naming Unly., Nanjing 210093;Dept. of Environ. Set. and Eng., Naming Unly., Nanjing 210093;Dept. of Environ. Set. and Eng., Naming Unly., Nanjing 210093 |
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| Abstract: | A modified determination method for TOX was described,whereby purgeable and nonpurgeable fractions were measured respectively. Purgeable organic halogen(POX) was stripped with a mixture of N2,and O2; and nonpurgeable organic halogen(NPOX) was enriched with a Liguidliquid Extraction (LLE) method. Both were introduced into a combustion system to change them into X-,which were then determined with spectrophotometry. There was a detection limit of about 1 μmol/L,a variation coeffcient of less than 3%,with an average recovery of 81% for 10 model. compounds. The TOX concentration in the tap water from Jiangsu province was from about 217 to 483 μg/L. |
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| Keywords: | purgeable organic halogen nonpurgeable organic halogen total organic halogen spectrophotometry |
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