摘要
采用液相色谱(HPLC)和电感耦合等离子体质谱(ICP-MS)联用测定白酒中砷的形态,各种砷形态的方法检出原(以砷计)分别为:AsB0.02ppb,DMA0.02ppb,As(Ⅲ)0.04ppb,MMA0.04ppb,As(Ⅴ)0.06ppb).以加标回收的方式评价方法的准确性,无机砷的加标回收率为85.1%—103.2%,相对标准偏差为2.52%—5.52%(n=6).根据所建立的方法,分析了市售部分白酒样品,其中无机砷的含量均未超出国家标准限量.
The method for determination of arsenic species in liquor by using HPLC-ICP-MS has been developed . The mehod detection limits of each As species were as follows （count as As ）： AsB 0. 02ppb, DMA 0. 02ppb, As （Ⅲ） 0 04ppb, MMA 0. 04ppb, As （ Ⅴ ） 0. 06ppb. The accuracy and precision of the method was evaluated by spike recovery testing. Recovery of inorganic arsenic were between 85. 1%-103.2% and the relative standard deviation were within 2. 52%-5.52% （n = 6） . Liquor sample from the market were analyzed according to the presented method hereby. The result showed that inorganic arsenic in the samples did not exceed national permission limits.
出处
《环境化学》
CAS
CSCD
北大核心
2008年第6期853-855,共3页
Environmental Chemistry
