摘要
提出内积的溶液浓度测定方法。该方法计算已知浓度溶液透光率曲线与0号溶液(浓度最低的溶液)透光率曲线的内积ρ,确定溶液的ρ-C曲线,然后测定未知溶液的透光率曲线,计算其与0号溶液透光率曲线的内积,并利用已建立好的ρ-C曲线进行插值以估计溶液浓度。由于该方法利用了透光率曲线的全部信息,因此对溶液浓度的估计精度较高。对K2Cr2O7溶液浓度的测定实验结果表明,该方法对溶液浓度的估计相对误差小于1.00%。
Method of concentration determination based on inner product is proposed.The method is described as follows.Firstly,calculate the inner product of the known and the No.0 solution s transmittance curve. Secondly,determine ρ-C curve of the solution.Thirdly,measure the transmittance curve of unknown solution and calculate it s inner product with No.0 solution s transmittance curve.Lastly,make interpolation and estimate the concentration according to the ρ—C curve.The estimation accuracy is good due to applicat...
出处
《光谱实验室》
CAS
CSCD
北大核心
2009年第4期1032-1034,共3页
Chinese Journal of Spectroscopy Laboratory
基金
西安文理学院2008年中青年专业技术人员科研资助项目(kyc200804)
关键词
浓度
内积
ρ-C曲线
插值
Concentration
Inner Product
ρ-C Curve
Interpolation
