Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8588706 | Food Science and Human Wellness | 2018 | 6 Pages |
Abstract
In this work, glutathione capped CdTe QDs (GSH-QDs) were prepared through a one-pot process and found to be quenched by Cr3+, Ag+ and Cu2+ ions. Cr3+ and chromium (III) picolinate could be quantitatively measured after masking Cu2+ and Ag+ ions by sulfide. Under optimal conditions, linear quenching was observed for Cr3+ in the ranges of 0-2.0 μM and the limit of detection was 3.0 nM. The recoveries for Cr3+ in vitamin supplements obtained were from 92.5% to 106%. The determination results of chromium (III) picolinate in vitamin supplement samples were compared to that obtained using flame atomic absorption spectrometry (FAAS) method, and the result showed good reliability.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Food Science
Authors
Chi-Fang Peng, Ying-Ying Zhang, Zhi-Juan Qian, Zheng-Jun Xie,