总磷测定中两种稀释方法的对照  

Comparison Between Two Diluted Methods in Determination of Total Phosphor

作　　者：陈娟 

机构地区：[1]仪征化纤公司安全环保监督部环境监测站,江苏仪征211900

出　　处：《环境监测管理与技术》2002年第5期28-29,共2页The Administration and Technique of Environmental Monitoring

摘　　要：在过硫酸钾消解 -钼蓝比色法测定总磷中 ,当显色液吸光值超出校准曲线范围时 ,进行了显色液稀释后再行测定的试验 ,试验结果与水样稀释重新消解测定所得结果作统计检验 ,两者间无显著性差异 ,稀释倍数最大不宜超过 4倍。In determination of total phosphor using K 2S 2O 8 digestion-bismuth blue colorimetry, while absorbency was beyond optimal range, colorimeric solution was diluted for redetection. The test result had no obvious deviation with that water sample was diluted. But the optimal diluted time was better no more 4 times.

关 键 词：总磷 测定 稀释方法 水质监测 比色法 显色液 

分 类 号：X832[环境科学与工程—环境工程]