A NOVEL DETECTION SCHEME FOR HERBICIDAL RESIDUES

Patrick J. Hannan

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A NOVEL DETECTION SCHEME FOR HERBICIDAL RESIDUES

机译：一种新的除草剂残留检测方案

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It is relatively simple to determine the growth rate of a microorganism culture, minute-by-minute, by monitoring the CO_2 content of an air stream that has passed through the culture at a constant rate. Any change in the growth rate caused by the addition of a toxicant is readily detectable. This is the basis of a procedure for detecting sulfonylurea herbicides on vegetation. A freshwater alga (Chlorella pyrenoidosa sorokiniana) and baker's yeast (Saccharomyces cerevisiae) were the test organisms evaluated in this study. The alga was the more sensitive to sulfonylureas, and the effect of 0.01 μg of a sulfonylurea that had been simply leached from an apple leaf was evident in 15 min. Triazine herbicides inhibit the Chlorella even more rapidly than the sulfonylureas.

机译：通过监测以恒定速率通过培养物的气流中的CO_2含量，可以很容易地逐分钟确定微生物培养物的生长速率。由毒物的添加引起的生长速率的任何变化都易于检测到。这是在植被上检测磺酰脲类除草剂的程序的基础。淡水藻类（Chlorella pyrenoidosa sorokiniana）和面包酵母（Saccharomyces cerevisiae）是本研究中评估的测试生物。藻类对磺酰脲类更为敏感，在15分钟内，从苹果叶中简单浸出的0.01μg磺酰脲类的效果就很明显。三嗪类除草剂比磺酰脲类抑制绿藻的速度更快。

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来源
《Environmental toxicology and chemistry》 |1995年第5期|p.775-780|共6页
作者
Patrick J. Hannan;
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作者单位

AARP/Senior Environmental Employee Program, Mail Code 7507C, U.S. Environmental Protection Agency, 401 M St. S.W., Washington, DC 20460;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类环境卫生、环境医学;毒物学（毒理学）;化学工业废物处理与综合利用;
关键词
sulfonylureas; detection; chlorella; gas exchange;

机译：磺脲类;检测;小球藻;气体交换;

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A NOVEL DETECTION SCHEME FOR HERBICIDAL RESIDUES

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