当前位置: 首页 > 文章 > 基于可见-近红外光谱的水质pH值分析 湖北农业科学 2012,51 (3) 189-191+197
Position: Home > Articles > Analysis on pH in Water by Visible-Near Infrared Spectroscopy Hubei Agricultural Sciences 2012,51 (3) 189-191+197

基于可见-近红外光谱的水质pH值分析

作  者:
杜艳红;张伟玉;杨仁杰;杨延荣;常若葵
单  位:
天津农学院机电工程系
关键词:
可见-近红外光谱;pH值;逐步回归法;定量分析模型
摘  要:
利用光谱分析技术分析不同的水样pH值,并应用逐步回归法建立了564、670和732 nm处水质的反射光谱吸收强度与其pH值之间的定量分析模型,模型的复相关系数R2=0.992 8,校正复相关系R2Adj=0.976 0,定标标准误差SEC=0.174,预测误差SEP=0.028,并通过了F验证,对连续、快速分析水质具有重要意义。
译  名:
Analysis on pH in Water by Visible-Near Infrared Spectroscopy
作  者:
DU Yan-hong,ZHANG Wei-yu,YANG Ren-jie,YANG Yan-rong,CHANG Ruo-kui (Department of Electromechanical Engineering,Tianjin Agricultural University,Tianjin 300384,China)
关键词:
visible-near infrared spectroscopy;pH;stepwise regression method;quantitative analysis model
摘  要:
A new method with spectroscopy analysis to detect water pH was developed.The quantitative analysis model between pH and the water reflect spectroscopy absorption intensity at the wavelength of 564,670 and 732 nm was established by stepwise regression method.The model passed the F verification,and multiple correlation coefficient was 0.992 8,and revised multiple correlation coefficient was 0.976 0,and calibration errors and predict errors were 0.174 and 0.028,which plays an important role for continues and rapid water analysis.

相似文章

计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊