A Simple Dispersive Micro-Solid Phase Extraction for Determination of Neonicotinoid Insecticides in Surface Water and Fruit Juice Samples
Jitlada Vichapong, Yanawath Santaladchaiyakit, Rodjana Burakham and Supalax Srijaranai* Author for corresponding; e-mail address: jitlada.v@msu.ac.th
Volume: Vol.49 No.2 (March 2022)
Research Article
DOI: https://doi.org/10.12982/CMJS.2022.037
Received: 28 May 2021, Revised: 5 January 2022, Accepted: 21 January 2022, Published: -
Citation: Vichapong J., Santaladchaiyakit Y., Burakham R. and Srijaranai S., A Simple Dispersive Micro-Solid Phase Extraction for Determination of Neonicotinoid Insecticides in Surface Water and Fruit Juice Samples, Chiang Mai Journal of Science, 2022; 49(2): 387-397. DOI 10.12982/CMJS.2022.037.
Abstract
A dispersive micro-solid phase extraction (D-μ-SPE) has been investigated for simple microextraction and preconcentration of fi ve neonicotinoid insecticides residues followed by highperformance liquid chromatography. The neonicotinoid insecticides including thiamethoxam, clothianidin, imidacloprid, acetamiprid, and thiacloprid, were separated on LiChroprep® 100 RP-8 endcapped column using 25% (v/v) acetonitrile with a fl ow rate of 1.0 mL min−1. LiChroprep® RP-18 (C-18) was chosen as an effi cient adsorbent in d-μ-SPE. The experimental parameters affecting the extraction performance of D-μ-SPE were investigated including salt addition, amount of sorbent, sample volume, and kind and volume of desorption solvent. Under the selected conditions, linearity was found in the range of 0.003-0.1 μg mL−1. Low limit of detection and high enrichment factor (11 – 81) were obtained. The proposed method was successfully applied for the determination of neonicotinoid insecticide residues in surface water and fruit juice samples with high obtained recoveries.