Analysis of four pesticides, isoproturon, phenmedipham, pyridate and nitenpyram residues by high-performance liquid chromatography with diode-array detector

Sung Yong Yang, Yun Chang Koo, Zeng Wang, Kyeong Heo, Hyeongkook Kim, Eun Mi An, Han Seung Shin, Jin Won Lee, Kwang Won Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A method for the determination of four pesticide compounds, urea (isoproturon), bis-carbamate (phenmedipham), thiocarbamate (pyridate) and vinyllidenediamine (nitenpyram) were examined and analyzed by HPLC with C-18 column (250 mm×4.6 mm, 5 μm diameter particle size). Mobile phase consisted of deionized water, acetonitrile and 50 mM KH2PO4 (pH 2.5). Isoproturon and phenmedipham analytical condition was isocratic elution of the column with 50% solvent A (acetonitrile) and 50% solvent B (deionized water); pyridate was 85% solvent A (acetonitrile) and 15% solvent B (deionized water) at a flow rate of 1 mL/min; and nitenpyram analytical condition was 90% solvent A (50 mM KH 2PO 4, pH 2.5) and 10% solvent B (acetonitrile) at a flow rate of 1 mL/min. In results, retention times were 6.12, 8.63, 9.40 and 12.76 min for isoproturon, phenmedipham, pyridate and nitenpyram, respectively. All injection volumes were 10 μL and the limit of quantitation was 0.05 mg/kg for four pesticide compounds, respectively. Recovery rate test was performed with three farm products, rice, apple and soybean. Four pesticide compounds were spiked at concentrations of 0.05, 0.1 and 0.5 mg/kg. The recovery rates were ranged from 70.18% to 118.08% and the standard deviations of all experiments were within 10%.

Original languageEnglish
Pages (from-to)1165-1170
Number of pages6
JournalJournal of the Korean Society of Food Science and Nutrition
Volume39
Issue number8
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Analysis
  • HPLC
  • Isoproturon
  • Nitenpyram
  • Pesticide
  • Phenmedipham
  • Pyridate
  • Residue

ASJC Scopus subject areas

  • Nutrition and Dietetics
  • Food Science

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