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Citation: WU Yingchun, NIE Feng, TANG Zhihua, LIU Dongqiang. Preparation and Properties of Formaldehyde Molecularly Imprinted Polymer and Its Application in Detectiong Formaldehyde in Aquatic Product[J]. Chinese Journal of Applied Chemistry, ;2015, 32(1): 104-109. doi: 10.11944/j.issn.1000-0518.2015.01.140104 shu

Preparation and Properties of Formaldehyde Molecularly Imprinted Polymer and Its Application in Detectiong Formaldehyde in Aquatic Product

1.
School of Chemical and Environmental Science, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China

Corresponding author: WU Yingchun,
Received Date: 31 March 2014
Available Online: 20 May 2014
Fund Project: 陕西理工学院横向项目(4250710)资助 (4250710)

Molecularly imprinted polymer(MIP) was prepared by optimized method using formaldehyde as template molecule,α-methacrylic acid as functional monomer,ethylene glycol dimethacrylate as crosslinking agent in chloroform. The imprinted polymer has the best selective adsorption capacity when the molar ratio of template molecular,functional monomer,crosslinking agent is 1:2:20,the prepolymerization time is 4 h,and the polymerization time is 8 h. When the concentration of formaldehyde solution is 2 mmol/L,the adsorption capacity of MIP reaches 12.40×10^-2 mmol/g. The analysis of squid water sample indicated formaldehyde concentration was 5.92 mg/Kg. At the same time,formaldehyde was not detected when the test sample was diluted 100 times,while after enriched by MIP solid-phase extraction (MIPSE) the concentration of formaldehyde was 5.76 mg/Kg. Formaldehyde MIP has high-efficiency in enriching low concentration formaldehyde for sample preparation,and there is no significant difference in the testing results.
- Formaldehyde,
- molecularly imprinted polymer(MIP),
- MIP solid-phase extraction
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