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Reference type: Journal
Authors: Aria MM, Sorribes-Soriano A, Jafari MT, Nourbakhsh F, Esteve-Turrillas FA, Armenta S, Herrero-Martínez JM, de la Guardia M
Article Title: Uptake and translocation monitoring of imidacloprid to chili and tomato plants by molecularly imprinting extraction - ion mobility spectrometry.
Publication date: 2019
Journal: Microchemical Journal
Volume: 144
Page numbers: 195-202.
DOI: 10.1016/j.microc.2018.09.007
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0026265X18309433

Abstract: The degradation of imidacloprid in soil and its uptake and translocation to chili and tomato plants was evaluated, as a proof of concept, of the possibilities of the combination of molecularly imprinted polymers (MIPs) and ion mobility spectrometry (IMS) for a fast and sensitive bioprocesses monitoring tool. To do it, a method based on the selective extraction of imidacloprid from soil and plant materials was developed. In the selected conditions, the MIP-IMS procedure provided a recovery of imidacloprid in soil and plant samples from 102 to 114%, for spiked concentration levels from 0.2 to 2.0 μg g-1. Precision of the methodology, expressed as the relative standard deviation (RSD) of a 100 and 1000 μg L-1 imidacloprid standard solution was 11 and 6%, respectively, being the RSD for the analysis of a soil sample spiked at a concentration level of 1 μg g-1 of 11% (n = 4). Limits of detection and quantification of 0.03 and 0.10 μg g-1 in the solid sample were also obtained, respectively. Regarding imidacloprid degradation, this study evidenced that the process follows a first order kinetics with a half-life between 39 and 45 days in soil, being necessary a growing period of 33 days before pesticide detection in stems and leaves
Template and target information: imidacloprid
Author keywords: Pesticide uptake, Translocation, Imidacloprid, Plants, molecularly imprinted polymer, ion mobility spectrometry


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