分光光度法测量磷酸的色度  

Determination of the chromaticity of phosphoric acid by spectrophotometry

作　　者：郑秀军 ZHENG Xiujun(Tongling Sinco Fine Chemical Co.,Ltd.,Tangling 244023,China)

机构地区：[1]铜陵鑫克精细化工有限责任公司,安徽铜陵244023

出　　处：《磷肥与复肥》2022年第2期38-39,共2页Phosphate & Compound Fertilizer

摘　　要：磷酸色度的测定主要采用铂钴标准比色法,人为误差较大。介绍分光光度法测定工业磷酸色度的过程,在吸收波长325 nm处建立色度与吸光度的标准曲线,根据磷酸的吸光度得到其色度,曲线的线性相关系数R>0.9999,大幅提高了磷酸色度测量的准确性。The platinum-cobalt standard colorimetry method is mainly used to determine the chromaticity of phosphoric acid,the human error is large.The process of determining the chromaticity of industrial phosphoric acid by spectrophotometry is introduced,the standard curve of chromaticity and absorbance is established at 325nm.The chromaticity of phosphoric acid is obtained according to the absorbance.The linear correlation coefficient of the curve is 0.9999,which greatly improves the accuracy of phosphoric acid chromaticity measurement.

关 键 词：工业磷酸 色度 分光光度法 

分 类 号：TQ041.7[化学工程]