[Study on spectra pretreatment in near infrared spectroscopy analysis using charger coupled device detector].
The effects of spectra pretreatment method and parameters to signal noise ratio and calibration models quality in near-infrared spectroscopy analysis using charger coupled device(CCD) detector have been studied and discussed. To attain higher signal noise ratio, in the range of 700-1,100 nm, using 2048 pixels CCD, we suggest that the optimal gaps of smoothing first derivative treatment of spectra are 9 points, and the gap of second derivative treatment is 19 points.
Xu
G
G
Research Institute of Petroleum Processing, 100083 Beijing.
Yuan
H
H
Lu
W
W