PMID- 22265489
OWN - NLM
STAT- MEDLINE
DCOM- 20120604
LR  - 20120123
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 88
DP  - 2012 Jan 15
TI  - Determination of six pyrethroid insecticides in fruit juice samples using 
      dispersive liquid-liquid microextraction combined with high performance liquid 
      chromatography.
PG  - 209-15
LID - 10.1016/j.talanta.2011.10.033 [doi]
AB  - Dispersive liquid-liquid microextraction (DLLME) coupled to high performance 
      liquid chromatography (HPLC) with UV detection was applied for the determination 
      of six pyrethroids (tetramethrin, fenpropathrin, cypermethrin, deltamethrin, 
      fenvalerate and permethrin) in various fruit juices including apple, red grape, 
      orange, kiwi, passion fruit, pomegranate and guava juice. Six pyrethroids were 
      separated within 30 min using a Waters Atlantis T3 column under an isocratic 
      elution of acetonitrile-water (72:28). The parameters affecting extraction 
      efficiency of the DLLME method such as type of disperser and extraction solvent, 
      volume of disperser and extraction solvent and centrifugation time were 
      investigated. Under the optimum conditions, 5.00 mL of sample solution, 300 muL of 
      chloroform as extraction solvent and 1.25 mL of methanol as dispersive solvent 
      gave high enrichment factor in the range of 62-84. Good linearity was obtained 
      from 2 to 1,500 mug/L (r(2)>0.995). The mean recoveries of the pyrethroids 
      evaluated by fortification of real samples were in the range of 84-94%. The 
      limits of detection ranging from 2 to 5 mug/L are sufficient to analyze pyrethroid 
      residues at the maximum residue limits (MRLs) established by the European Union 
      (EU) in fruit juices. The proposed method can be applied to direct determination 
      of pyrethroid residues in fruit juices.
CI  - Copyright (c) 2011 Elsevier B.V. All rights reserved.
FAU - Boonchiangma, Suthasinee
AU  - Boonchiangma S
AD  - Department of Chemistry and Center of Excellence for Innovation in Chemistry, 
      Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
FAU - Ngeontae, Wittaya
AU  - Ngeontae W
FAU - Srijaranai, Supalax
AU  - Srijaranai S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111031
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
RN  - 0 (Insecticides)
RN  - 0 (Nitriles)
RN  - 0 (Pyrethrins)
RN  - 0 (Solvents)
SB  - IM
MH  - Beverages/*analysis
MH  - Calibration
MH  - Chromatography, High Pressure Liquid/methods
MH  - Food Contamination/*analysis
MH  - Fruit/*chemistry
MH  - Insecticides/*analysis
MH  - Liquid Phase Microextraction/methods
MH  - Nitriles/chemistry
MH  - Pyrethrins/*analysis
MH  - Sensitivity and Specificity
MH  - Solvents/chemistry
EDAT- 2012/01/24 06:00
MHDA- 2012/06/05 06:00
CRDT- 2012/01/24 06:00
PHST- 2011/08/05 00:00 [received]
PHST- 2011/09/29 00:00 [revised]
PHST- 2011/10/04 00:00 [accepted]
PHST- 2012/01/24 06:00 [entrez]
PHST- 2012/01/24 06:00 [pubmed]
PHST- 2012/06/05 06:00 [medline]
AID - S0039-9140(11)00935-0 [pii]
AID - 10.1016/j.talanta.2011.10.033 [doi]
PST - ppublish
SO  - Talanta. 2012 Jan 15;88:209-15. doi: 10.1016/j.talanta.2011.10.033. Epub 2011 Oct 
      31.