CAJ | 학술논문

建立了毛细管电泳（CE）与电感耦合等离子体质谱（ICP-MS）联用技术分析检测砷胆碱（AsC）、砷甜菜碱（AsB）、As（Ⅲ）、二甲基砷酸（DMA）、甲基砷酸（MMA）和 As（Ⅴ）六种形态砷化合物的方法。结果表明，六种砷化合物在20 min内即可得到有效分离，各砷形态在2．0～50．0μg·L-1范围内线性关系良好，相关系数R2大于0．996，检出限为0．10～1．08μg·L-1，5次平行测定中，六种砷化合物峰面积的相对标准偏差（RSD）为3．0％～7．0％。利用该方法成功对市售蓝点马鲛中砷化合物进行了测定，加标回收率为93％～98％，发现蓝点马鲛中的砷主要以AsB形式存在。该方法具有稳定性好、样品消耗量少、快速、简便等优点，适用于其他生物样品中不同砷化合物的分析。
건립료모세관전영（CE）여전감우합등리자체질보（ICP-MS）련용기술분석검측신담감（AsC）、신첨채감（AsB）、As（Ⅲ）、이갑기신산（DMA）、갑기신산（MMA）화 As（Ⅴ）륙충형태신화합물적방법。결과표명，륙충신화합물재20 min내즉가득도유효분리，각신형태재2．0～50．0μg·L-1범위내선성관계량호，상관계수R2대우0．996，검출한위0．10～1．08μg·L-1，5차평행측정중，륙충신화합물봉면적적상대표준편차（RSD）위3．0％～7．0％。이용해방법성공대시수람점마교중신화합물진행료측정，가표회수솔위93％～98％，발현람점마교중적신주요이AsB형식존재。해방법구유은정성호、양품소모량소、쾌속、간편등우점，괄용우기타생물양품중불동신화합물적분석。
A method for the detection of arsenocholine(AsC),arsenobetaine(AsB),As(Ⅲ),dimethylarsinic(DMA),monom-ethylarsonic(MMA)and As(Ⅴ)by capillary electrophoresis-inductively coupled plasma mass spectrometry(CE-ICP-MS)was established.The results showed that the six species of arsenic were separated within 20 min under the optimized conditions. Good linearities of 6 arsenic species were observed in the range from 2 to 50μg·L-1 with the linear correlation greater than 0. 996,the detection limits were 0. 10~1. 08μg·L-1 and the RSDs (n= 5)of the peak areas were smaller than 7%.The meth-od was successfully adopted to the determination of the species in scomberomorus niphonius.The recoveries were between 93%and 98%,and we found the arsenobetaine(AsB)was the main species in the sample.The method was suitable for the analysis of other biological samples with the advantages of good stability,less sample consumption,short analysis time and convenience.