应用微波消解法检测地沟油中金属元素的含量  

Determination of metallic elements in drain oil by Microwave Digestion ICP-AES

作　　者：李群英[1] 杨科雷[2] 王黎国[2] 王艳萍[1] 张岩[1] 

机构地区：[1]中国石油天然气股份有限公司石油化工研究院大庆化工研究中心,黑龙江大庆163714 [2]大庆石化公司,黑龙江大庆163714

出　　处：《炼油与化工》2013年第2期47-50,63-64,共4页Refining And Chemical Industry

摘　　要：应用微波消解法对地沟油样品进行了处理。用硝酸—双氧水氧化试剂和ICP-AES法测定样品中的铁、钙、钠、镁、锌、铝等微量金属元素。考察了微波消解酸的种类和用量,并进行精密度和准确度实验,各元素的回收率均高于97%,相对标准偏差均小于2%。The drain oil(used cooking oil) was treated with Microwave Digestion.HNO 3-H 2 O 2 oxidising agent and ICP-AES method were used to determine the contents of Iron,Calcium,Sodium,Magnesium,Zinc and Aluminum in the solution sample.The kinds and dosage of microwave digestion acids were investigated.Precision and accuracy Experiment was Conducted.The results showed that the recovery was 97% and the relative standard deviation(RSD) was less than 2%.

关 键 词：微波消解法 检测 地沟油 金属元素 

分 类 号：TS227[轻工技术与工程—粮食、油脂及植物蛋白工程]