红外和紫外可见分光光谱法初步鉴别餐饮废油-食品安全质量检测学报.PDF

5 5 Vol. 5 No. 5 2014 5 Journal of Food Safety and Quality May. , 2014 1* 1 1 2 2 李 辰 , 梁添旺 , 杨伟杰 , 许春才 , 龚 悦 (1. , 529020; 2. , 528000) 摘 要: 目的 方法 (), 1745 cm-1 , ; 230~800 nm , , 结果 , 347330081652 cm-1 1745 cm-1 , ; , 668 nm , 结论 , 关键词: ; ; ; ; ; Preliminary identification of waste cooking oil by the infrared spectrum and ultraviolet-visible spectrum 1* 1 1 2 2 LI Chen , LIANG Tian-Wang , YANG Wei-Jie , XU Chun-Cai , GONG Yue (1. Analytical Testing Center of Wuyi University , Jiangmen 529020, China; 2. Foshan Institute of Quality and Technical Supervision Standards and Codes, Foshan 528000, Guangdong Province, China) ABSTRACT: Objective To establish a simple, fast distinguish method for waste cooking oil, biodiesel and qualified cooking oils. Methods Several common cooking oils bought from supermarket, roadside restaurant oil, biodiesel and waste cooking oil (including hogwash oil and frying oil) were compared based on the relative intensity ratio of infrared (IR) spectra with a characteristic