RAPID PREDICTION OF STICKIES CONTENT IN DEINKED PULP BY NIR SPECTROSCOPY
A rapid method to predict the stickies content of deinked pulp by near infrared reflectance (NIR) spectroscopy was developed. The content of stickies extracted by tetrahydrofuran from deinked pulp was quantified by Gel Permeation Chromatography with Evaporative Light Scattering Detector (GPC-ELSD). After vector normalization pretreatment of the original spectra in the wave-number range of 7502-6800cm-1 and 5450-4246cm-1, the correlation between stickies content and NIR spectrum of deinked pulp was established by partial least squares. The calibration model and prediction model of the stickies content were characterized by the correlation coefficient square (R2) of 0.90 and 0.93 and standard error of 0.10 and 0.11, respectively. The relative standard deviation of the repeatability of prediction model of the stickies content in deinked pulp was less than 8％ when the stickies amount was higher than 0.2 mg/g dry pulp. Therefore，It is feasible that NIR spectroscopy could be used for stickies rapid determination in industry.
stickies deinked pulp NIR
Yu Jichuan Fu Shiyu Zeng Xiling Zhan Huaiyu
State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou,510640, China
国际会议
广州
英文
755-758
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）