摘要
针对国标回流法测定CODcr方法的操作繁杂、试剂用量多、分析费用高等不足,研究了美国热电公司高温消解法测定电厂水样CODcr的新方法。采用环境标准消解分光光度法(HJ/T 399-2007)测定CODcr原理,通过自配消解试剂、优化氧化消解温度和消解时间,改进高温消解测定CODcr的具体分析方法。通过精密度和准确度检验,表明该方法是一种操作简单、准确、经济、可靠实用的分析方法。
New analytical method of CODcr was resea^hed by Thermo Orion method, due to the trivial operation, reagent and high expenses. Improved analytical way of CODcr determination using high-temperature digester is fixed by adopting the theory of standard HJ/T 399-2007, self-preparation of digestion solution, and optimizing the digest temperature and time. By precision and accuracy tests, it is concluded that this is a simple, accurate, reliable and economic way of COD determination.
出处
《安徽电力》
2011年第3期37-39,共3页
Anhui Electric Power
关键词
自配试剂
高温消解
水样分析
CODCR
substitute reagent high-temperature digestion
water analysis
CODcr
