Method development for determination of fluroxypyr in water

M. Halimah, Y. A. Tan, K. Aini, Ismail Sahid

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Improved methods for extraction and clean up of fluroxypyr residue in water have been established. Two methods of fluroxypyr extraction were used, namely, Direct Measurement of fluroxypyr and Concentration of fluroxypyr onto A Solid Phase Extraction (SPE) Adsorbent, followed by elution with solvent before determination of fluroxypyr. The recovery for Direct Measurement of fluroxypyr in water containing 8-100 μg L-1, ranged from 86 to 110% with relative standard deviation of 0.7 to 2.15%. For the second method, three types of SPE were used, viz. C18, C18 end-capped and polyvinyl dibenzene (ISOLUTE ENV+). The procedure involved concentrating the analyte from fluroxypyr-spiked water at pH 3, followed by elution of the analyte with 4 mL of acentonitrile. The recovery of fluroxypyr from the spiked sample at 1 to 50 μg L-1 after eluting through either C18 or C18 end-capped ranged from 40-64% (with relative standard deviation of 0.7 to 2.15) and 41-65% (with standard deviation of 1.52 to 11.9). The use of ISOLUTE ENV +, gave better results than the C18, C18 end-capped or the Direct Measurement Methods. The recovery and standard deviation of fluroxypyr from spiked water using ISOLUTE ENV + ranged from 91-102% and 2.5 to 5.3, respectively.

Original languageEnglish
Pages (from-to)429-440
Number of pages12
JournalJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
Volume38
Issue number4
DOIs
Publication statusPublished - 2003

Fingerprint

fluroxypyr
Water
Recovery
water
measurement method
methodology
Solid Phase Extraction
Adsorbents
solid phase extraction
vinyl compounds
Polyvinyls
4,5-amino-3,5-dichloro-6-fluoro-2-pyridinyloxyacetic acid
method
adsorbents
concentrating

Keywords

  • Fluroxypyr
  • Method development
  • Polyvinyl dibenzene
  • SPE
  • Water

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Public Health, Environmental and Occupational Health
  • Waste Management and Disposal

Cite this

Method development for determination of fluroxypyr in water. / Halimah, M.; Tan, Y. A.; Aini, K.; Sahid, Ismail.

In: Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, Vol. 38, No. 4, 2003, p. 429-440.

Research output: Contribution to journalArticle

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