Determination of α-Cellulose Content of Natural Cellulose Pulp in a New Clean Pulping Process Using Near Infrared Diffuse Reflectance Spectroscopy
HUANG Jun1, YUAN Hong-fu1*, SONG Chun-feng1, LI Xiao-yu1, XIE Jin-chun1, DU Jun-qi2
1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China 2. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Abstract：A new near infrared diffuse reflectance spectroscopy method is proposed to rapidly detect α-cellulose content of natural cellulose (plant fiber: cotton, wood) pulp in a new clean pulping process. One hundred forty two samples were collected and their α-cellulose content data were determined by standard method GB/T 9107-1999. The samples were homogenized by grinding pretreatment to improve spectroscopy measurement accuracy. Effective classification models were built by SIMCA, with the total correct identification. Using partial least squares (PLS) quantitative calibration, α-cellulose of the whole and separate cotton and wood pulp was established, with the correlation coefficients of 0.954, 0.911, 0.839, SEP, 0.024, 0.012 and 0.016, respectively .The repeatability results obtained by the new method are in agreement with the results from GB/T 9107-1999. The new method is feasible for determining α-cellulose content of natural cellulose (plant fiber: cotton, wood) in clean pulping process.
Key words：Near infrared spectroscopy;Natural cellulose;α-cellulose content;Clean pulping process
黄 珺1，袁洪福1*，宋春风1，李效玉1，谢锦春1，杜俊琪2 . 近红外漫反射光谱法快速测定天然纤维素清洁浆料α-纤维素含量 [J]. 光谱学与光谱分析, 2013, 33(01): 60-64.
HUANG Jun1, YUAN Hong-fu1*, SONG Chun-feng1, LI Xiao-yu1, XIE Jin-chun1, DU Jun-qi2 . Determination of α-Cellulose Content of Natural Cellulose Pulp in a New Clean Pulping Process Using Near Infrared Diffuse Reflectance Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(01): 60-64.
