| 作物和土壤中DEHP测定的前处理 |
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| 引用本文： | 庞金梅,杜荣平. 作物和土壤中DEHP测定的前处理[J]. 环境科学, 1995, 16(4): 72-74,56 |
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| 作者姓名： | 庞金梅 杜荣平 |
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| 作者单位： | 山西省农科院土肥所，山西省粮油所 |
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| 基金项目： | 山西省“七·五”科技攻关项目 |
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| 摘 要： | 介绍农田土壤和农作物样品中微量ＤＥＨＰ测定的前处理方法。该法选用三氯甲烷为抽提液，加入吸水剂进行革取、抽提和浓缩。与北京、丹麦和美国等测试方法相比较，革取时间为０．５—０．７ｈ，缩短了２—１１ｈ；溶剂用量为７５—９０ｍｌ，节省溶剂１１０—１２００ｍｌ；操作简便、分离效果好；样品中ＤＥＨＰ的回收率除棉花籽实外，其余均达９０％左右，变异系数约土３％。该法适宜在酞酸酯监测中推广应用。
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| 关 键 词： | 环境监测 作物 土壤 气相色谱 酞酸二异辛酯 |
| 收稿时间： | 1994-12-18 |
Pretreatment for the Test of DEHP in Crops and Soil |
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| Pang Jinmei. Pretreatment for the Test of DEHP in Crops and Soil[J]. Chinese Journal of Environmental Science, 1995, 16(4): 72-74,56 |
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| Authors: | Pang Jinmei |
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| Affiliation: | Soil and Fertilizer institute, Shanxi Academy of Agri. Sci., Taiyuan 030031 |
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| Abstract: | This paper deals with the pretreatment method for testing DEHP from farm soil and crops with CHCl3 as a solvent and with the absorbent. Campared with those from Beijing, Denmark and United States of America, this method took a short extracting time of 0.5-0.7h, 2-11 h shorter than others, and the solvent of 75-90 ml, 110-1200 ml less than others. This method is easy to use and has a high effective separation. There was a DEHP recovery rate of about 90%, except for cotton seeds. The coefficient of variability was less than f 3 %. It's very suitable to test phthalic acid esters. |
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| Keywords: | DEHP extraction CHCl3 absorbent. |
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