کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1228098 968447 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A study on the extraction and quantitation of total arsenic and arsenic species in seafood by HPLC–ICP-MS
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A study on the extraction and quantitation of total arsenic and arsenic species in seafood by HPLC–ICP-MS
چکیده انگلیسی

Various internal standards and analytical methods were investigated using certified reference materials to evaluate the accuracy of the quantitation of the total As in seafood. Inductively coupled plasma mass spectrometry (ICP-MS) was used to measure the total arsenic. Enhancement of the total arsenic in its concentration caused by the methanol matrix was clearly observed. Selenium (mass 77) was the best internal standard, and the standard addition method combined with the use of Se as an internal standard was the best analytical method. The total arsenic was determined in bluefin tuna, yellowfin tuna, bigeye tuna, and swordfish by ICP-MS. The concentrations of total arsenic in the seafoods ranged from 0.74 to 6.87 mg/kg.Various extraction procedures were also investigated using reference materials to evaluate the extraction efficiency of the different arsenic species in seafood. Inductively coupled plasma mass spectrometry (ICP-MS) was used in conjunction with high performance liquid chromatography (HPLC) to quantitate the arsenic species in seafood. The arsenic species were extracted from tuna fish (BCR 627) with water/methanol mixtures using sonication, a microwave-assisted system, and ultrasonic processor. The major species was arsenobetaine. The total arsenic extraction efficiency ranged from 81 to 87% for water and various methanol concentrations. Chromatograms of the arsenic species extracted from the Korea Research Institute of Standards and Science (KRISS) tuna, bluefin tuna, yellowfin tuna, bigeye tuna, and swordfish were obtained by the optimum extraction methods and the species were quantified.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 95, Issue 1, May 2010, Pages 20–24
نویسندگان
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