Issue 13, 2014

Mesoporous alumina as a solid phase extraction adsorbent for the determination of abamectin and ivermectin in vegetables by liquid chromatography-tandem mass spectrometry

Abstract

We report the synthesis of mesoporous alumina by a template method and its applications as a new solid phase extraction adsorbent with abamectin and ivermectin as the target analytes by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Chromatographic separation was conducted on a C18 column using a gradient mobile phase consisting of methanol (solvent A) and 0.2% formic acid in a 5 mmol L−1 ammonium acetate buffer (solvent B) at a flow rate of 0.3 mL min−1. The linearity of the calibration curves was excellent and yielded correlation coefficients (r2 = 0.9990–0.9999) in a range of 0.02–0.50 mg L−1. Samples were spiked with known quantities of the analytes at three different concentration levels (0.05, 0.10 and 0.20 mg L−1), and the recoveries were in the range of 87.3–104.5% with the relative standard deviation (RSD) values ranging between 0.53% and 5.8%. The limits of detections and limits of quantization were 0.16 ng g−1 and 0.53 ng g−1, respectively. These results indicated that mesoporous alumina has enormous potential as a novel solid phase extraction adsorbent material in the food security field.

Graphical abstract: Mesoporous alumina as a solid phase extraction adsorbent for the determination of abamectin and ivermectin in vegetables by liquid chromatography-tandem mass spectrometry

Article information

Article type
Paper
Submitted
12 Jan 2014
Accepted
30 Apr 2014
First published
02 May 2014

Anal. Methods, 2014,6, 4734-4741

Author version available

Mesoporous alumina as a solid phase extraction adsorbent for the determination of abamectin and ivermectin in vegetables by liquid chromatography-tandem mass spectrometry

Y. Hu, X. Li, L. Zhang, M. Zhou, G. Wang, Y. Zhang, C. Xi and S. Cao, Anal. Methods, 2014, 6, 4734 DOI: 10.1039/C4AY00107A

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