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Reference type: Journal
Authors: Moein MM, Javanbakht M, Akbari-Adergani B
Article Title: Molecularly imprinted polymer cartridges coupled on-line with high performance liquid chromatography for simple and rapid analysis of human insulin in plasma and pharmaceutical formulations.
Publication date: 2014
Journal: Talanta
Volume: 121
Page numbers: 30-36.
DOI: 10.1016/j.talanta.2013.12.011
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914013009934

Abstract: In this paper, a novel method is described for automated determination of human insulin in biological fluids using principle of sequential injection on a molecularly imprinted solid-phase extraction (MISPE) cartridge as a sample clean-up technique combined with high performance liquid chromatography (HPLC). The water-compatible molecularly imprinted polymers (MIPs) were prepared using methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker, chloroform as a porogen and insulin as a template molecule. The imprinted polymers were then employed as the solid-phase extraction sorbent for on-line extraction of insulin from human plasma samples. To achieve the best condition, influential parameters on the extraction efficiency were thoroughly investigated. Rapid and simple analysis of the hormone was successfully accomplished through the good selectivity of the prepared sorbent coupled with HPLC. Limits of detection (LOD) and quantification (LOQ) of 0.2 ng mL-1, 0.7 ng mL-1, and 0.03 ng mL-1, 0.1 ng mL-1 were obtained in plasma and urine respectively. The obtained data exhibited the great recoveries for extraction of insulin from human plasma and pharmaceutical samples, higher than 87%
Template and target information: peptide, insulin, human insulin
Author keywords: molecularly imprinted polymer, Insulin, human plasma, Pharmaceutical formulations, Automated, Sample clean-up

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