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- W3201653282 abstract "N-phenylglycine (NPG) in human urine could be an important biomarker for predicting cancers, but its detection has difficulty due to its low abundance in urine. Herein, we report a molecular imprinted polymer (MIP) method to efficiently recognize NPG in urine. The MIP was prepared by precipitation polymerization, adopting NPG as the template, acrylamide (AM) as functional monomer, trimethylpropane triacrylate (TRIM) as crosslinking agent, and acetonitrile as porogen. The specificity and selectivity of MIP towards NPG in human urine were determined by comparing MIP's adsorption to the NPG and N-crotonylglycine (NTG) under the same conditions. The result β = QMIP-NPG/QMIP-NTG = 4.7 indicated the satisfactory specificity and selectivity. Parameters affecting the extraction efficiency were further optimized. Under the optimum conditions, the linear range, limit of detection, and limit of quantification of NPG were 0.5–100 mg∙L−1, 1.6 × 10−2 mg∙L−1, and 5.5 × 10−2 mg∙L−1, respectively. Recoveries of NPG in human urine were in the range of 84.7–100.0% with RSDS of 3.8–10.8%. The developed method demonstrated superior selectivity to the target analyte, which can be applied to separate and enrich the NPG from urine samples." @default.
- W3201653282 created "2021-09-27" @default.
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- W3201653282 date "2021-10-01" @default.
- W3201653282 modified "2023-09-24" @default.
- W3201653282 title "Study on the preparation of molecular imprinted polymer for analysis of N-phenylglycine in human urine" @default.
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- W3201653282 doi "https://doi.org/10.1016/j.jchromb.2021.122918" @default.
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