Dye Rubber Content in Latex Analyzer by Fourier-transformed Transflectance Near Infrared Spectroscopy

Abstract

The objective of this study was to evaluate the ability of fourier-transformed near infrared spectroscopy (FT-NIR) to determine dye rubber content (DRC) in field latex, samples were measured in the long wavelength region (1000 nm – 2495 nm) the sample range of 20.0% to 40.0% sample temperature was controlled at 25 ^๐C, calibration set n = 90. The samples were scanned in a circular cell cup and reflectance data were stored as logarithm of the reciprocal reflectance (log1/R). The calibration and validation equation were developed from the number of factors used in the calibration and validation equation of F₅. The Multiple correlation coefficients (R) of calibrations of 0.99, validation of 0.98 with standard error of calibration (SEC) values of 4.63, bias-corrected standard error of prediction (SEP) of 4.68 and the average of difference between actual value and NIR-value (bias) values calibration set of 0.12, validation set of 0.98 was
The best model were generate of original spectra show the FT-NIR spectroscopy for prediction the dye rubber content of fresh latex.