PMID- 22500447
OWN - NLM
STAT- MEDLINE
DCOM- 20140702
LR  - 20171116
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 29
IP  - 12
DP  - 2011 Dec
TI  - [Determination of seven phenoxyacid herbicides in environmental water by high 
      performance liquid chromatography coupled with three phase hollow fiber liquid 
      phase microextraction].
PG  - 1199-204
AB  - A novel method for the simultaneous determination of seven phenoxyacid herbicides 
      such as dicamba, fluroxypyr, 4-chlorophenoxyacetic acid (4-CPA), 
      2-methyl-4-chlorophenoxyacetic acid (MCPA), 2, 4-dichlorophenoxyacetic acid 
      (2,4-D), 2,4-dichlorophenoxybutyric acid (2,4-DB) and 
      4-(2-methyl-4-chlorophenoxy) butyric acid (MCPB) in environmental water by three 
      phase hollow fiber liquid phase microextraction (HF-LPME) coupled with high 
      performance liquid chromatography (HPLC) was developed. In order to optimize the 
      experimental conditions, the orthogonal test has been used. The effects of 
      extraction solvent, pH of the donor phase and acceptor phase, extraction time, 
      stirring speed and salt concentration on the detection were investigated. The 
      optimal experimental conditions were as follows: octanol as organic solvent, pH 3 
      of donor phase, pH 12 of acceptor phase, extraction time of 30 min, stirring 
      speed of 400 r/min. The results showed that the proposed method provided a wide 
      linear range for 7 phenoxyacid herbicides with correlation coefficients of 0.995 
      3 - 0.998 8. The detection limits ranged from 0.2 to 1.0 microg/L. The enrichment 
      factors were in the range of 76.7 - 121. The recoveries were in the range of 68% 
      - 104% and the relative standard deviations (RSDs) were less than 8.1% for the 
      environmental water samples. The method has the advantages of sensitivity, 
      simplicity, fastness and the use of very small amounts of organic solvent. The 
      method can meet the requirements of the determination of trace phenoxyacid 
      herbicides in the environmental water samples, and the study provided a useful 
      method for the analysis of trace substances in water samples.
FAU - Peng, Xiaojun
AU  - Peng X
AD  - Xinhui Entry-Exit Inspection and Quarantine Bureau, Jiangmen 529100, China. 
      peng2129@yahoo.com.cn
FAU - Pang, Jinshan
AU  - Pang J
FAU - Deng, Aihua
AU  - Deng A
LA  - chi
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Acetates)
RN  - 0 (Herbicides)
RN  - 0 (Phenols)
RN  - 0 (Pyridines)
RN  - 0 (Water Pollutants, Chemical)
RN  - 2577AQ9262 (2,4-Dichlorophenoxyacetic Acid)
RN  - 3229-70-7 (phenoxy radical)
RN  - 4EMM3U5P3K (4-chlorophenoxyacetic acid)
RN  - 8O40SHO197 (4,5-amino-3,5-dichloro-6-fluoro-2-pyridinyloxyacetic acid)
RN  - SJG3M6RY6H (Dicamba)
SB  - IM
MH  - 2,4-Dichlorophenoxyacetic Acid/*analogs & derivatives/analysis
MH  - Acetates/analysis
MH  - *Chromatography, High Pressure Liquid
MH  - Dicamba/analysis
MH  - Herbicides/*analysis
MH  - *Liquid Phase Microextraction
MH  - Phenols
MH  - Pyridines/analysis
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2012/04/17 06:00
MHDA- 2014/07/06 06:00
CRDT- 2012/04/17 06:00
PHST- 2012/04/17 06:00 [entrez]
PHST- 2012/04/17 06:00 [pubmed]
PHST- 2014/07/06 06:00 [medline]
PST - ppublish
SO  - Se Pu. 2011 Dec;29(12):1199-204.