Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10140922 | Microchemical Journal | 2019 | 42 Pages |
Abstract
In this study, an optosensing composite was fabricated by coating a molecularly imprinted polymer (MIP) layer onto CdTe quantum dots (MIP-QDs) to develop a fluorescent sensor for the determination of tetrabromobisphenol-A (TBBPA). The resulting MIP-QDs composite was well characterized and had ideal properties of morphology and photoluminescence. Under the optimized experiment conditions, this fluorescent sensor exhibited a good linearity with TBBPA covering the concentration range of 1.0-60.0â¯ng/mL and the detection limit was as low as 3.6â¯ng/g. This developed MIP-QDs sensor was successfully employed to detect TBBPA in electronic waste (e-waste) samples for the first time. The mean recoveries were in the range from 89.6% to 107.9% with the relative standard deviation below 6.2%, which were in accordance with the results of HPLC-UV method. The average concentration of TBBPA in electric fan and circuit board samples were 260.20 and 707.30â¯mg/kg, respectively. This study provided a simple, rapid, highly sensitive and selective method to detect TBBPA in e-waste samples.
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Authors
Jingwen Feng, Yun Tao, Xiaoli Shen, Hua Jin, Tingting Zhou, Yusun Zhou, Liqin Hu, Dan Luo, Surong Mei, Yong-Ill Lee,