YANG Ran, ZENG Hua-jin, SUI Guo-hui, GUO Cheng, LI Jian-jun, QU Ling-bo. Determination of Hydroquinone in The Aquatic Environment by Chemiluminescence of Luminol-H<sub>2</sub>O<sub>2</sub> Sensitized by CdTe Quantum Dots[J]. Chinese Journal of Luminescence, 2013,(1): 116-121
YANG Ran, ZENG Hua-jin, SUI Guo-hui, GUO Cheng, LI Jian-jun, QU Ling-bo. Determination of Hydroquinone in The Aquatic Environment by Chemiluminescence of Luminol-H<sub>2</sub>O<sub>2</sub> Sensitized by CdTe Quantum Dots[J]. Chinese Journal of Luminescence, 2013,(1): 116-121 DOI: 10.3788/fgxb20133401.0116.
Determination of Hydroquinone in The Aquatic Environment by Chemiluminescence of Luminol-H2O2 Sensitized by CdTe Quantum Dots
Based on the phenomenon that hydroquinone can obviously inhibit the CL signal of the luminol-H
2
O
2
system sensitized by CdTe QDs in basic medium
a novel flow-injection chemiluminescence method for the determination of hydroquinone has been developed. Under the optimum conditions
the linear range for the determination of hydroquinone was 1.0~25 nmol·L
-1
with a detection limit of 0.76 nmol·L
-1
calculated as proposed by IUPAC and a relative standard deviation of 2.56% for 11 solutions of 4.0 nmol·L
-1
hydroquinone. The proposed method can be used to determine hydroquinone content in water samples from the environment and satisfactory results were obtained without interferences from the sample matrix. Furthermore
the possible enhancement mechanism of CdTe QDs on luminol-H
2
O
2
CL was further investigated.
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references
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School of Material Science and Engineering, Hebei University of Technology
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University
Hubei Key Laboratory of Nutritional Quality and Safety of Agro Products, Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Science
College of Life Science, Yangtze University
Key Laboratory of New Display Materials and Devices, Ministry of Industry and Information Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology