Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (2): 228.doi: 10.7503/cjcu20190605

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Determination of Triazine Herbicides from Fruit Juice Samples Using Effervescence Assisted Microextraction Method Based on Acidic Ionic Liquid Packed Syringe

PIAO Huilan,MA Pinyi,QIN Zucheng,JIANG Yanxiao,SUN Ying,WANG Xinghua,SONG Daqian()   

  1. College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2019-11-25 Online:2020-02-10 Published:2019-12-31
  • Contact: Daqian SONG E-mail:songdq@jlu.edu.cn
  • Supported by:
    This paper is supported by the National Natural Science Foundation of China(21405057);the Science and Technology Developing Foundation of Jilin Province of China(20180201050YY);the Industrial Innovation Funds of Jilin Province of China(2018C034-1)

Abstract:

A rapid, efficient, eco-friendly and simple effervescence assisted microextraction method based on acidic ionic liquid packed syringe was proposed for the determination of triazine herbicides in fruit juice samples. The extraction and dispersion procedure was achieved using an acidic ionic liquid [C4mim][HSO4]. It possesses high solubility for triazine herbicides and acidity that can generate carbon dioxide, which accelerates the extraction procedure via reacting with carbonate. The dispersion and separation were carried out in a syringe. Thus, the whole pretreatment procedure was completely free of any equipment. A variety of experimental conditions affecting extraction efficiency, including amount of sodium bicarbonate, amount of acidic ionic liquid, salt addition and volume of elution solvent were optimized. Under the optimal conditions, good linearities were obtained in the range of 1—200 ng/mL, with coefficients better than 0.9984. The limit of detection(LOD) and limit of quantification(LOQ) varied from 0.06 to 0.18 ng/mL and 0.21 to 0.61 ng/mL, respectively. The intra-day and inter-day precisions were lower than 8.3%. The developed technique was successfully applied for determination of triazine herbicides in fruit juice samples.

Key words: Acidic ionic liquid, Effervescence assisted microextraction, Triazine herbicide

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