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- Title
HPLC-ICP-MS 联用测定食用菌中的 Cr(III)和 Cr(VI).
- Authors
杨海锋; 陈磊; 宋卫国; 叶少丹; 梁立韵; 黄南; 姚春霞
- Abstract
A method for determination of trivalent chromium [Cr(III)]and hexavalent chromium [Cr(VI)]in edible fungi was established using high performance liquid chromatography with inductively coupled plasma mass spectrometry(HPLC-ICP-MS).Cr(III)and Cr(VI)were first extracted using aphosphate buffer solution(0.5 mol/L K2HPO40.5 mol/L KH2PO4)and an alkaline extraction solution(0.5 mol/L NaOH 0.28 mol/L Na2CO3), and then analyzed by HPLC-ICP-MS.The results showed that the calibration curves for Cr(III)and Cr(VI)were linear in the concentration range of 0.4~20μg/L and the correlation coefficients were 0.9998 for both Cr(III)and Cr(VI).The limit of determination(LOD)for Cr(III)and Cr(VI)were 0.03 mg, and the limit of quantification(LOQ)for Cr(III)and Cr(VI)were 0.10 mg.The recoveries of Cr(III)and Cr(VI)ranged from 81% to 102% with relative standard deviations lower than10%.This method is sensitive, efficient, reliable, and can be used for the determination of Cr(III)and Cr(VI)in both fresh and dried edible fungi samples.
- Subjects
CHROMIUM; EDIBLE fungi; HIGH performance liquid chromatography; INDUCTIVELY coupled plasma mass spectrometry; ALKALINE solutions
- Publication
Acta Edulis Fungi, 2018, Vol 25, Issue 2, p126
- ISSN
1005-9873
- Publication type
Article
- DOI
10.16488/j.cnki.1005-9873.2018.02.017