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Issue 14, 2013
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Determination of triazine residues in herbal plants using molecularly imprinted polymerextraction followed by UPLC-MS/MS

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Abstract

The present study described the development and validation of a sensitive and selective analytical method for simultaneous determination of 23 triazines in herbal plants. Pesticides were extracted using a modified QuEChERS procedure, and the extracts were cleaned up with gel permeation chromatography (GPC) and molecularly imprinted solid-phase extraction (MISPE) followed by UHPLC-MS/MS. The molecularly imprinted polymers (MIPs) were prepared by a traditional precipitation method using N-butylmelamine as a template and methacrylic acid (MAA) as a functional monomer. The linearity of the calibration curve for each pesticide was r2 > 0.99 in the concentration range of 0.25 to 50 μg L−1. The validation studies were performed on six herbal plants and the mean recoveries of most triazines were in the range of 60–100% at 0.01, 0.1 and 1.0 mg kg−1 with RSD less than 15%. The LODs were less than 0.003 mg kg−1. Overall, the method has provided the possibility of applying MIPs to the separation and enrichment of triazines from complicated matrices like herbal plants.

Graphical abstract: Determination of triazine residues in herbal plants using molecularly imprinted polymer extraction followed by UPLC-MS/MS

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Publication details

The article was received on 12 Mar 2013, accepted on 16 May 2013 and first published on 16 May 2013


Article type: Paper
DOI: 10.1039/C3AY40407B
Anal. Methods, 2013,5, 3582-3590

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    Determination of triazine residues in herbal plants using molecularly imprinted polymer extraction followed by UPLC-MS/MS

    B. Mao, Z. Jia, X. Mao, K. Wang and S. Ji, Anal. Methods, 2013, 5, 3582
    DOI: 10.1039/C3AY40407B

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