检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:吴旭妍 赵静 张丽 孙悦 WU Xuyan;ZHAO Jing;ZHANG Li;SUN Yue(Ningxia Grain and Oil Product Quality Testing Center,Yinchuan 750002,China)
出 处:《中国油脂》2022年第3期117-122,共6页China Oils and Fats
基 金:宁夏回族自治区科技厅重点研发项目(2018BEG03071)。
摘 要:利用电感耦合等离子体质谱(ICP-MS)仪对回收油脂与食用植物油中27种元素含量进行分析检测,了解回收油脂与食用植物油中27种元素含量的差异,以此鉴别回收油脂与食用植物油。采集合格食用植物油样品22份,回收油脂样品120份,经微波消解后,进入ICP-MS仪检测27种元素含量,结合偏最小二乘法判别分析进行元素差异分析,找出不同类型回收油脂与食用植物油的特殊差异元素。结果表明:Co、Cu、Fe、Na、Mn在未精炼回收油脂和食用植物油中的含量差异较大,可以作为鉴别未精炼回收油脂和食用植物油的指标元素;Fe、Cd两种元素在精炼回收油脂和食用植物油中的含量差异较大,可用于精炼回收油脂的鉴别;Cr、Cd、Ag、Ca、Pb、Hg、Al含量在不同颜色精炼回收油脂中有明显差异,可以此来指导回收油脂的进一步提炼,并根据其元素含量的高低用于生物原油等再利用。研究结果可为回收油脂与食用植物油的鉴别提供参考。The 27 elements in recycled oils and edible vegetable oils were analyzed by inductively coupled plasma mass spectrometry(ICP-MS) to determine the differences in the 27 elements contents in recycled oils and edible vegetable oils, and identify recycled oils from normal edible vegetable oils. The samples of 22 qualified edible vegetable oils and 120 recycled oils were collected, and the contents of 27 elements were analyzed by ICP-MS after microwave digestion. The element content difference analysis was carried out using partial least squares discriminant analysis to identify specific elements between different types of recycled oils and edible vegetable oils.The results showed that Co, Cu, Fe, Na and Mn were very different between crude recycled oils and edible vegetable oils, which could be used to identify crude recycled oils. The contents of Fe and Cd were very different in refined recycled oils and edible vegetable oils, which could be used to identify refined recycled oils. The contents of Cr, Cd, Ag, Ca, Pb, Hg and Al were significantly different in refined recycled oils with different color, which could guide the further extraction and refining, and the reuse of crude bio-oil according to the level of its element content.The results could provide a reference for the identification of recycled oils from edible vegetable oils.
分 类 号:TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程] O657.31[轻工技术与工程—食品科学与工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.200