哈希测定仪COD_(Cr)分析方法的消解时间研究与优化

Research and Optimization of Digestion Time in the COD_(Cr) Analysis Method for HACH Determinator

通过对哈希CODCr测定法的研究与优化,低量程样品消解时间从原来的2 h缩短到30 min,高量程样品消解时间从原来的2 h缩短到15 min。经过精密度、准确度试验以及本方法与国标回流法的对照试验,验证了所选时间和测试方法准确可靠。

Through the research and optimization of analysis method of CODc, by HACH determinator, the low range of samples digestion time shortened from the original 2 hours to 30 minutes and the high range of samples digestion time shortened from the original 2 hours to 15 minutes. After the precision and accuracy of the test, and controlled trials of this method and the national standard reflux method, verify the selected time and test method is accurate and reliable.