【摘要】 采用电感耦合等离子体-质谱(ICP-MS)测定了14种鱿鱼丝(Dried Shredded Squid,DSS)中的砷总量,发现14种鱿鱼丝中的砷总量均低于2μg.g-1;用高效液相色谱(HPLC)与ICP-MS联用技术建立了As(Ⅲ)、As(Ⅴ)、二甲基胂酸(DMA)、甲基胂酸(MMA)、砷甜菜碱(AsB)和砷胆碱(AsC)六种砷形态的分离分析方法;采用快速溶剂萃取(ASE)、超声溶剂提取(SON)和盐酸浸提三种不同的前处理方法分析了3种鱿鱼丝中的砷形态,发现鱿鱼丝中的砷主要以AsB形式存在。更多还原

【Abstract】 14 types dried shredded squid(DSS) saled in Qingdao were examined for their total arsenic content and As species.Total arsenic concentration in these DSS were all below 2 μg·g-1.For the species,a method was established using high performance liquid chromatography(HPLC) hyphenated with inductively coupled plasma-mass spectrometry(ICP-MS) for separation of arsenobetaine(AsB),arsenocholine(AsC),arsenite(As(Ⅲ)),arsenate(As(Ⅴ)),monomethylarsonic acid(MMA) and dimethylarsinic acid(DMA) in one chromatographic run.The As species in 3 DSSs were extracted using accelerated solvent extraction (ASE),sonication extraction(SON) and hydrochloric acid extraction.The results showed that arsenobetaine(AsB) was the main species in these DSS.更多还原