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Updated: Jun 21, 2026

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测量和预测的除草剂度在比利时的地表水域的比较

Claudia Hörold-Willkomm1, Marco Herrmann1, Dirk Baets2

  • 1Rifcon GmbH, Hirschberg, Germany.

Integrated environmental assessment and management
|April 10, 2024
PubMed
概括

农药命运模型及其使用 (FOCUS) 协调论坛的表面水方法有效地保护水生生物. 两个流域的真实世界农药监测显示,预测的环境度很少超过,证明了模型.

关键词:
监控数据 监控数据 监控数据杀虫剂是一种杀虫剂.预测的环境度表面的水是表面的水.上游验证的验证.

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Precipitation Titration: Endpoint Detection Methods01:19

Precipitation Titration: Endpoint Detection Methods

In argentometric precipitation titrations, endpoints can be detected visually by the Mohr, Volhard, and Fajans methods. In the Mohr method, adding a soluble chromate indicator gives an initial yellow color to the analyte solution. As the titrant is added, the first excess of silver ions forms a red silver chromate precipitate, marking the endpoint. The solution pH should be maintained at about 8 by adding solid CaCO3.
In the Volhard method, a standard excess of AgNO3 is first added to the...