偏最小二乘法同时测定邻、间、对硝基苯酚

Simultaneous spectrophotometric determination of nitrophenol isomer mixtures by partial least-squares method

将偏最小二乘法 (PLS)用于紫外可见光度分析 ,同时测定邻、间、对硝基苯酚 3组分同分异构体的混合物 ,并考察了波长对计算精度的影响 ,偏最小二乘法与卡尔曼滤波法相比 ,具有快速、准确和适应性广等特点。

Partial Least squares (PLS)method is applide to simultaneous determination of o nitrophenol, m nitrophenol and p nitrophenol isomer mixture.The accuracy of calculation is studied by changing the range of wavelength.The results of PLS are more accurate and reliable compared with those of Kalman filtering method.