土壤中PCP-Na紫外光度分析前处理条件的研究

doi:10.16036/j.issn.1000-2650.2002.02.011

四川农业大学学报 ›› 2002, Vol. 20 ›› Issue (02): 110-112.doi: 10.16036/j.issn.1000-2650.2002.02.011

土壤中PCP-Na紫外光度分析前处理条件的研究

陈强¹, 李登煜¹, 张小平¹, 廖德聪¹, 王德轩², 高怀友³, 向其兰⁴

1. 四川农业大学农学院, 四川雅安 625014;
2. 重庆市彭水县棣棠乡政府, 重庆市彭水 409706;
3. 农业部环境监测总站, 天津市 300091;
4. 重庆市万州区五桥水电局, 重庆市万州 404000

收稿日期:2001-05-21 出版日期:2002-06-30 发布日期:2017-03-06
基金资助:
四川省教育厅项目;四川省科技厅项目

Study on the Primary Treatment of Analysis of PCP-Na in Polluted soil by Ultraviolet Spectrophotometric Method

CHEN Qiang¹, LI Deng-yu¹, ZHANG Xiao-ping¹, LIAO De-cong¹, WANG De-xuan², GAO Huai-you³, XIANG Qi-lan⁴

1. College of Agriculture, Sichuan Agricultural University, Yaan 625014, Sichuan, China;
2. The Office of Ditang Town, Pengshui county, Pengshui 409700, Chongqing, China;
3. The center of Agro-environment Monitoring, Tianjing 300091, China;
4. The Bureau of Wupiao Hydroelectricity, Wanzhou 404000, Chongqing, China

Received:2001-05-21 Online:2002-06-30 Published:2017-03-06

摘要/Abstract

摘要： 用正交试验法对土壤中五氯酚钠(PCP-Na)紫外光度分析的前处理条件进行了探讨。结果表明:酸化处理时H₂SO₄的用量是影响土壤PCP-Na回收率的主要因素,酸化时间次之,无机盐溶液对结果无影响。试验获得的最佳组合条件是:用0.005mol/L的H₂SO₄溶液酸化土样30min,控温蒸馏,馏出液用0.2mol/L的NaOH定容,于320nm处直接测定土壤PCP-Na含量,可获得较高的回收率。

关键词: PCP-Na, 紫外光度分析, 正交试验

Abstract: By using orthogonal experimental testing method, the precondition of analysis of PCP-Na in polluted soil by ultraviolet spectrophotometric technique was determined. The results indicate there are two main factors affecting the recovery rate of PCP-Na in soil, and the volume of sulfate acid acidizing the sample and the time of acidification. The phosphate solution has no effect on the recovery rate. The best precondition to get a higher recovery rate of PCP-Na is:acidizing 10 g of soil sample 30 min with 100 mL of 0.005 mol/L of sulfate acid, and distilling at 98 ℃, then detecting the optimal density of the distillation at the wavelength of 320 nm directly.

Key words: PENTACHLORAPHENOL SODIUM, ULTRAVIOLET SPECTROPHOTOMETRIC METHOD, ORTHOGONAL EXPERIMENTAL TEST

中图分类号:

S481+.8

陈强, 李登煜, 张小平, 廖德聪, 王德轩, 高怀友, 向其兰. 土壤中PCP-Na紫外光度分析前处理条件的研究[J]. 四川农业大学学报, 2002, 20(02): 110-112.

CHEN Qiang, LI Deng-yu, ZHANG Xiao-ping, LIAO De-cong, WANG De-xuan, GAO Huai-you, XIANG Qi-lan. Study on the Primary Treatment of Analysis of PCP-Na in Polluted soil by Ultraviolet Spectrophotometric Method[J]. jsau, 2002, 20(02): 110-112.

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土壤中PCP-Na紫外光度分析前处理条件的研究

Study on the Primary Treatment of Analysis of PCP-Na in Polluted soil by Ultraviolet Spectrophotometric Method

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