PMID- 11521888
OWN - NLM
STAT- MEDLINE
DCOM- 20020129
LR  - 20190720
IS  - 0021-9673 (Print)
IS  - 0021-9673 (Linking)
VI  - 924
IP  - 1-2
DP  - 2001 Jul 27
TI  - Analysis of post-harvest fungicides by micellar electrokinetic chromatography.
PG  - 387-96
AB  - A method based on solid-phase extraction (SPE) and micellar electrokinetic 
      chromatography (MEKC) was developed for the simultaneous determination of 
      carbendazim, imazalil, methylthiophanate, O-phenylphenol, prochloraz, 
      procimidone, thiabendazole and triadimefon residues in grape, lettuce, orange and 
      tomato. Selectivity and resolution were studied changing the pH and the 
      concentration of the buffer, the type and concentration of surfactant and the 
      methanol content in the mobile phase. A buffer consisting of 4 mM borate with 75 
      mM sodium cholate (pH 9.2) gave the best results. The recoveries of the 
      fungicides in spiked fruit and vegetable samples ranged from 30 to 105%, and the 
      limits of detection were between 0.1 and 1 mg kg(-1). The reproducibility and 
      repeatability of the combination of SPE pretreatment and MEKC were good for all 
      the compounds, except for imazalil and O-phenylphenol in oranges, due to some 
      matrix compounds interfering with the separation. The method was applied to post 
      harvest treated samples, and the fungicides were sometimes detected at 
      concentration levels lower than maximum residue limits (MRLs).
FAU - Rodriguez, R
AU  - Rodriguez R
AD  - Laboratorio de Bromatologia i Toxicologia, Facultat de Farmacia, Universitat de 
      Valencia, Burjassot, Spain.
FAU - Pico, Y
AU  - Pico Y
FAU - Font, G
AU  - Font G
FAU - Manes, J
AU  - Manes J
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Buffers)
RN  - 0 (Fungicides, Industrial)
RN  - 0 (Surface-Active Agents)
RN  - 368GB5141J (Sodium Dodecyl Sulfate)
RN  - NU3Y4CCH8Z (Sodium Cholate)
SB  - IM
MH  - Buffers
MH  - Chromatography, Micellar Electrokinetic Capillary/*methods
MH  - Fruit/chemistry
MH  - Fungicides, Industrial/*analysis
MH  - Reproducibility of Results
MH  - Sodium Cholate
MH  - Sodium Dodecyl Sulfate
MH  - Surface-Active Agents
EDAT- 2001/08/28 10:00
MHDA- 2002/01/30 10:01
CRDT- 2001/08/28 10:00
PHST- 2001/08/28 10:00 [pubmed]
PHST- 2002/01/30 10:01 [medline]
PHST- 2001/08/28 10:00 [entrez]
AID - S0021-9673(01)00716-6 [pii]
AID - 10.1016/s0021-9673(01)00716-6 [doi]
PST - ppublish
SO  - J Chromatogr A. 2001 Jul 27;924(1-2):387-96. doi: 10.1016/s0021-9673(01)00716-6.