水产学报2013，Vol.37Issue(5)：735-741,7.DOI:10.3724/SP.J.1231.2013.38417
我国几种重要经济贝类中砷的含量及其形态特征转化规律
Arsenic content and speciation analysis of several economic shellfishes in China
摘要
Abstract
The arsenic speciation and the content of four toxic arsenic (including As3 +,As5 +,MMA and DMA)in several main economic shellfishes in our country were analyzed using HPLC-ICP-MS combined with in vitro digestion method.Results showed that S.strictus had the highest total arsenic content(5.68 mg/ kg),the second was in S.Subcrenata(4.83 mg/kg),the total arsenic content in C.Farreri,C.Ostreae and H.discus hannai were much lower(2.26-2.70 mg/kg)and three of them had no significant difference.The lowest content was in R.Philippinarum and M.edulis.AsB was the main arsenic speciation in both water extraction and gastrointestinal extraction for all samples,and especially for Scapharca subcrenata,AsB was the only arsenic speciation.About 0.025,0.008 and 0.300 mg/kg As3+ were separated in the water extraction of C.farreri,R,philippinarum and S.strictus respectively.In addition,0.115 mg/kg As5+ was also detected in the water extraction of S.strictus.Different concentration of DMA was found in the water extraction of all samples except for S.subcrenata and M.edulis,with the highest content of 0.674 mg/kg in S.strictus.However,except in S.strictus,DMA was detected in the intestinal extraction,none of four toxic arsenic speciations were found in the gastrointestinal extraction of other shellfishes.Present experiments proved that the arsenic speciation in the water extraction which could reflect the real content in shellfishes and in gastrointestinal extraction which could reflect the real content under the gastrointestinal digestion was different,especially for four toxic arsenic speciation.关键词
贝类/砷/形态分析/体外全仿生消化/HPLC-ICP-MSKey words
shellfishes / arsenic / speciation analysis / in vitro biomimetic / HPLC-ICP-MS分类
资源环境引用本文复制引用
赵艳芳,段元慧,尚德荣,翟毓秀,盛晓风,宁劲松..我国几种重要经济贝类中砷的含量及其形态特征转化规律[J].水产学报,2013,37(5):735-741,7.基金项目
国家自然科学基金项目(41206101) （41206101）
