| 土壤阴离子表面活性剂总量亚甲基蓝法研究 |
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| 引用本文： | 万汉兴,邹立,王丽,高亮,高会旺.土壤阴离子表面活性剂总量亚甲基蓝法研究[J].环境科学与技术,2011,34(12):147-151. |
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| 作者姓名： | 万汉兴 邹立 王丽 高亮 高会旺 |
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| 作者单位： | 1. 环境科学与工程学院,中国海洋大学
2. 环境科学与工程学院,中国海洋大学;海洋环境与生态教育部重点实验室,中国海洋大学,山东青岛266100 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(2008ZX07208-009-004) |
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| 摘 要： | 文章通过设计正交试验,针对提取的主要因素提取液配比、提取时间、提取温度和提取剂用量确定最优的前处理方法,建立与国标《水质阴离子表面活性剂亚甲基蓝分光光度法》(GB7494-87)对应的土壤阴离子表而活性剂(LAS)的亚甲基蓝分光光度法.土壤样品烘干后经20 mL乙醇水溶液(70％)提取,水浴恒温振荡仪45℃下振荡2h,...
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| 关 键 词： | 阴离子表面活性剂 土壤 亚甲基蓝分光光度法 |
Analytical Method of Methylene Blue Spectrometry on Total Anionic Surfactants in the Soil and Its Application |
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| WAN Han-xing,ZOU Li,WANG Li,GAO Liang,GAO Hui-wang.Analytical Method of Methylene Blue Spectrometry on Total Anionic Surfactants in the Soil and Its Application[J].Environmental Science and Technology,2011,34(12):147-151. |
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| Authors: | WAN Han-xing ZOU Li WANG Li GAO Liang GAO Hui-wang |
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| Institution: | WAN Han-xing1,ZOU Li1,2,WANG Li1,GAO Liang1,GAO Hui-wang1,2(1.College of Environmental Science and Engineering,Ocean University of China,2.Key Lab of Marine Environmental Science and Ecology of Ministry of Education,Qingdao 266100,China) |
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| Abstract: | Orthogonal test was used to optimize the pre-treatment method on soil samples,and the determination method on total linear alkylbenzene sulfonates(LAS) in soil was established,matching with the water quality-determination of anionic surfactants by methylene blue spectrometric method(GB7494-87).Dried soil samples was firstly extracted in 20 mL ethanol water solven(t 70%) under the condition of shaking for 2 h at 45 ℃ water bath,and then centrifuged for 20 min at 4 000 r/min Operating fluids was made after diluted for 20 times and the supernant reacted with methylene blue was measured at 652 nm.The method precision was 0.24%~1.89%,recovery was up to 91%~97% and detection limit was 0.020 mg/kg.The method was adaptive for the determination of LAS in soil samples and made the experiment results comparable with the analysis of water samples using methylene blue spectrometric method. |
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| Keywords: | anionic surfactants soil methylene blue spectrometric method |
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