A METABOLIC STUDY OF 3-(3,4-DICHLOROPHENYL)-1,1-DIMETHYLUREA (DIURON) APPLIED TO CORN SEEDLINGS

被引：30

作者：

ONLEY, JH

YIP, G

ALDRIDGE, MH

机构：

[1] Division of Food Chemistry, Food and Drug Administration, Washington, D. C.

[2] Chemistry Department, American University, Washington, D. C.

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1968年 / 16卷 / 03期

关键词：

D O I：

10.1021/jf60157a019

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The metabolism of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) applied to corn seedlings has been studied. Ring-C14-labeled, carbonyl-C14-labeled, and methyl-C14-labeled diuron were synthesized in milligram quantities. Each labeled compound was used in two sets of experiments: application to the leaf, and application to the nutrient solution. Samples of leaf washes, nutrient solutions, corn seedlings, and trapped CO2 were collected at intervals and analyzed for residues of diuron and its metabolites. The samples were measured by gas chromatography, infrared spectrophotometry, radioactivity, and mass spectrometry. The presence of 3,4-dichloronitrobenzene, 3-(3,4-dichlorophenyl)-1-methylurea, 3-(3,4-dichlorophenyl) urea, and 3,4-dichloroaniline as metabolites in corn seedlings which had been exposed to diuron in the nutrient solution was indicated. A metabolic scheme is proposed to fit the data obtained. © 1968, American Chemical Society. All rights reserved.

引用

页码：426 / &

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