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| 高效液相色谱-电感耦合等离子体质谱联用技术测定干海产品中砷化学形态 | |
| 引用本文： | 高杨,曹煊,余晶晶,黎先春,王小如.高效液相色谱-电感耦合等离子体质谱联用技术测定干海产品中砷化学形态[J].分析化学,2009,37(12). |
| 作者姓名： | 高杨 曹煊 余晶晶 黎先春 王小如 |
| 作者单位： | 1. 中国海洋大学化学化工学院,青岛,266003;山东省科学院海洋仪器仪表研究所,山东省海洋环境监测技术重点实验室,青岛,266001 2. 山东省科学院海洋仪器仪表研究所,山东省海洋环境监测技术重点实验室,青岛,266001 3. 国家海洋局第一海洋研究所青岛市现代分析技术与中药标准化重点实验室,青岛,266061 |
| 摘 要： | 利用高效液相色谱-电感耦合等离子体质谱联用技术研究了海带、羊栖菜、紫菜及浒苔等干海产品中的砷含量及其化学形态.实验表明,干海产品中主要砷形态为3种未知砷化物,对3种未知砷化物进行了表征.采用高效液相色谱与飞行时间质谱联用技术对羊栖菜和海带中的3种未知砷化物的分子量,分别为329.0599, 483.0738和409.0162,通过对比,确定这3个未知峰分别为3种砷糖类物质: DMA-glycerol ribose, DMA-phosphate ribose和DMA-sulfate ribose.对样品中砷的定量分析结果显示,干海产品中砷总量虽然超出我国国标中关于海产品中砷限量标准规定的20倍以上,但大多数植物性干海产品中主要的砷形态为毒性较低的砷糖类物质DMA-sulfate ribose(U4),其含量约占可提取砷量的51.1%～80.3%,海带中的砷主要以DMA-phosphate ribose(U3)的形式存在,占总可提取砷的48.9%. |
| 关 键 词： | 高效液相色谱 电感耦合等离子体质谱 飞行时间质谱 砷形态 干海产品 砷糖 |
Determination of Arsenic and Its Species in Dry Seafood by High Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry |
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| GAO Yang,CAO Xuan,YU Jing-Jing,Frank Sen-Chun Lee,WANG Xiao-Ru.Determination of Arsenic and Its Species in Dry Seafood by High Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry[J].Chinese Journal of Analytical Chemistry,2009,37(12). | |
| Authors: | GAO Yang CAO Xuan YU Jing-Jing Frank Sen-Chun Lee WANG Xiao-Ru |
| Institution: | GAO Yang1,2,CAO Xuan2,YU Jing-Jing3,Frank Sen-Chun Lee3,WANG Xiao-Ru3 1(College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266003) 2(Institute of Oceanographic Instrumentation,Shandong Ocean Environment Monitoring Technology Key Lab,Qingdao 266001) 3(First Institute of Oceanography,State Oceanic Administration,Qingdao 266061) |
| Abstract: | Arsenic and its species in dry seafood products(DSPs) Kelp,Sargassum fusiform,Laver,Enteromorpha prolifera,were systematically determined by high performance liquid chromatography-inductively coupled plasma mass spectrometry(HPLC-ICP-MS).It was found that the of arsenic species in botanic DSPs are three unknown arsenicals(U2,U3 and U4),which are speculated as arsenosugars and take approximate 63.5% 92.7% of all arsenic species detected.These arsenosugars were indentified as dimethylarsinic(DMA)-glycerol rib... |
| Keywords: | High performance liquid chromatography inductively coupled plasma mass spectrometry time of flight-mass spectrometry arsenic speciation dry seafood products arsenosugars |
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