Determination of Sinigrin in Semen Thlaspi From Sichuan and Tibet Using Near Infrared Diffuse Reflectance Spectroscopy
WANG Lei-lei1, CHEN Cong1, ZHOU Min1, WANG Jian-zhong1, LUO Xia2, HUANG Guo3, YE Li-ming1*
1. West China School of Pharmacy, Sichuan University, Chengdu 610041, China 2. Sichuan Institute of Chinese Medicine，Chengdu 610041, China 3. Bruker Instruments LTD., Beijing 100081, China
Abstract：The objective of the present study was to develop a method for the determination of sinigrin in semen Thlaspi from Sichuan using near infrared diffuse reflectance spectroscopy. Near infrared spectra (NIR) in the region of 7 502.1-5 446.2 cm-1 were recorded for the 246 semen Thlaspi samples containing sinigrin in the content of 1.962%-3.917%. Calibration models were established using the PLS (partial least squares). Different spectra pretreatment methods were compared. The study showed that spectral information can be extracted thoroughly by minimum and maximum normalization pretreatment methods. In this calibration model, the correlation coefficient (R2) was 0.928 0, the SEC (standard deviation of the calibration sets) was 0.314 and the SEP (standard deviation of the prediction sets) was 0.388. Results indicated that near infrared diffuse reflectance spectroscopy method can be used to rapidly analyze the valid component in traditional Chinese medicine, and also can be used in the quality control of traditional Chinese medicine.
王磊磊1,陈 聪1,周 旻1,王建忠1,罗 霞2,黄 果3,叶利明1* . 近红外漫反射光谱法测定川藏道地药材菥蓂子中黑芥子苷含量[J]. 光谱学与光谱分析, 2009, 29(10): 2673-2676.
WANG Lei-lei1, CHEN Cong1, ZHOU Min1, WANG Jian-zhong1, LUO Xia2, HUANG Guo3, YE Li-ming1* . Determination of Sinigrin in Semen Thlaspi From Sichuan and Tibet Using Near Infrared Diffuse Reflectance Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(10): 2673-2676.
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