Journal of Analytical Science and Technology (Dec 2022)

A simple co-precipitation sorbent-based preconcentration method for the analysis of fungicides in water and juice samples by high-performance liquid chromatography coupled with photodiode array detection

  • Yanawath Santaladchaiyakit,
  • Anuchit Sirijan,
  • Methaporn Wongchalee,
  • Chayakom Phurimsak,
  • Areebhorn Baoulan,
  • Jirasak Gamonchuang,
  • Tittaya Boontongto,
  • Jitlada Vichapong,
  • Rodjana Burakham,
  • Supalax Srijaranai

DOI
https://doi.org/10.1186/s40543-022-00356-z
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 13

Abstract

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Abstract A magnesium hydroxide co-precipitation sorbent-based method in the presence of an anionic surfactant (e.g., sodium dodecylbenzenesulfonate) and high-performance liquid chromatography were used to preconcentrate and analyze fungicides in water and apple juice samples. The preconcentration procedure can be accomplished in a single step based on the co-precipitation of target fungicides and magnesium chloride in the presence of surfactant in a sodium hydroxide solution (pH 11) and a white precipitate gel was simply obtained after centrifugation. The property of precipitate phase was subsequently characterized using Fourier-transform infrared spectroscopy, scanning electron microscopy, and X-ray diffractometry. Under the optimum conditions, the developed method exhibited good sensitivity, with an enrichment factor of 11–18 and limits of detection of approximately 1–5 μg/L for water samples and 7–10 μg/L for apple juices. High reproducibility was achieved with a relative standard deviation of less than 11%, and a good recovery range of 72% to 120% was also obtained. The proposed method was shown to be a simple preconcentration procedure for concentrating fungicides in the samples investigated.

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