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	Detection of chondroitin sulfate adulteration using terahertz and infrared spectroscopy techniques
	Li Ying-Ying1,2; Liu Zhong-Dong1; Yang Zhong-Bo2; Tang Ming-Jie2; Yun Xiao-Ling2,3; He Shi-Xuan4; Shi Chang-Cheng2; Wei Dong-Shan2; Wang Hua-Bin2
	2017-02-01
摘要	A comparison of the feasibilities of adulteration detection for chondroitin sulfate using terahertz time-domain spectroscopy (THz-TDS ) and infrared spectroscopy (IR ) was conducted. The shark-derived chondroitin sulfate (SCS ) mixed with sodium hexametaphosphate (SHMP ) adulteration was used as the materials for detection in this research. The results have shown that the spectra of SHMP, SCS and the adulterated samples of them were significantly different in either THz-TDS spectra or IR spectra, indicating that these two spectroscopic techniques have a potential for the identification of chondroitin sulfate adulteration. The lowest adulteration ratios (mass,to mass ) of SHMP to SCS which can be identified were 1 :15 and 1 :1 for THz-TDS and IR, respectively. THz-TDS is more sensitive in the detection performance than IR and is superior to IR for the detection of SCS adulteration. This study has provided an experimental foundation for developing an accurate, rapid and nondestructive spectroscopic technique which can be used to identify the adulteration of SHMP in SCS.
关键词	spectroscopic detection chondroitin sulfate sodium hexametaphosphate food adulteration inspection
DOI	10.11972/j.issn.1001-9014.2017.01.015
发表期刊	JOURNAL OF INFRARED AND MILLIMETER WAVES
ISSN	1001-9014
卷号	36期号:1页码:75-+
通讯作者	Shi, CC ; Wang, HB (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr Terahertz Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000395722400015
语种	英语