摘要
建立了单位波长吸光度改变量-分光光度法（AVW-S法）,并研究了在减少浊度对总磷测定结果影响中的作用。在筛选的6个波段中,线性关系良好（≥0.9999）,方法检出限在0.002~0.003 mg/L之间。实际样品的加标回收率在84.4%~115%范围内。与单波长法（SW-S法）和浊度补偿法（TC-SW-S法）相比,AVW-S法可显著减少样品浊度带来的正干扰,用于实际样品测定时具有更好的准确度。
An absorbance variation of unit wavelength-spectrophometry（AVW-S） method was established,and its function to reduce the influence of sample turbidity on analysis results of total phosphorus（TP） was discussed.In the6 wave bands correlation coefficient was good（≥ 0.9999） and the method detection limits were between 0.002 and0.003 mg/L.The recoveries of actual samples were in the range of 84.4% ~ 115%.Compared with single-wavelength spectrophotometric（SW-S） method and turbidity compensation spectrophotometric（TC-SW-S） method,AVW-S method could reduce the positive interference caused by sample turbidity,and have better accuracy for wastewater samples.
出处
《广州化工》
CAS
2016年第13期149-151,176,共4页
GuangZhou Chemical Industry
关键词
单位波长吸光度改变量
分光光度法
浊度
总磷
浊度补偿
absorbance variation of unit wavelength
spectrophotometric
turbidity
total phosphorus
turbidity compensation
