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codcr kuai su ce ding fa
Author(s): 
Pages: 28-30
Year: Issue:  2
Journal: FAJIAO KEJI TONGXUN

Keyword:  化学需氧量快速测定法硫酸亚铁快速法还原性物质标准法回流时间测定结果系统误差有机物污染;
Abstract: <正> 前言化学需氧量(COD),是指在一定条件下,用强氧化剂处理水样时所消耗氧化剂的量,以氧的mg/L来表示。化学需氧量反映了水中受还原性物质污染的程度。水被有机物污染是很普遍的,因此化学需氧量也作为有机
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