In this paper,filtering,demulsification,and extraction in pretreatment of national methylene blue spectrophotometry have been optimized to simplify the experimental procedures.To improve fussy extraction,high reagent consumption and reduce interference of experimental equipment on results.The simplified methylene blue spectrophotometry have been used to detect an-ionic surfactant assay in surface water and treated domestic wastewater.The results demonstrate that the method have good precision and accuracy,and no significant differences to national standard.
关键词
亚甲蓝分光光度法/阴离子表面活性剂/相对标准偏差/精密度/准确度
Key words
methylene blue spectrophotometry/an-ionic surfactant/relative standard deviation/precision/accuracy
维普
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