PMID- 22006392
OWN - NLM
STAT- MEDLINE
DCOM- 20120103
LR  - 20221207
IS  - 1097-0231 (Electronic)
IS  - 0951-4198 (Linking)
VI  - 25
IP  - 21
DP  - 2011 Nov 15
TI  - Multi-residue determination of plant growth regulators in apples and tomatoes by 
      liquid chromatography/tandem mass spectrometry.
PG  - 3289-97
LID - 10.1002/rcm.5225 [doi]
AB  - A sensitive and rapid multi-residue analytical method for plant growth regulators 
      (PGRs) (i.e., chlormequat, mepiquat, paclobutrazol, uniconazole, ethephon and 
      flumetralin) in apples and tomatoes was developed using high-performance liquid 
      chromatography/tandem mass spectrometry (HPLC/MS/MS). A homogenised sample was 
      extracted with a mixture of methanol/water (90:10, v/v) and adjusted to pH <3 
      with formic acid. Primary secondary amine (PSA) adsorbent was used to clean up 
      the sample. The determination was performed using electrospray ionisation (ESI) 
      and a triple quadrupole (QqQ) analyser. Under the optimised method, the results 
      showed that, except for ethephon, the recoveries were 81.8-98.1% in apples and 
      tomatoes at the spiked concentrations of 0.005 to 2 mg/kg, with relative standard 
      deviations (RSDs) of less than 11.7%. The limits of quantification (LOQs) were 
      lower than their maximum residue limits (MRLs). The procedure was concluded as a 
      practical method to determine the PGR residues in fruit and vegetables and is 
      also suitable for the simultaneous analysis of the amounts of samples for routine 
      monitoring. The analytical method described herein demonstrates a strong 
      potential for its application in the field of PGR multi-residue analysis to help 
      assure food safety.
CI  - Copyright (c) 2011 John Wiley & Sons, Ltd.
FAU - Xue, Jiaying
AU  - Xue J
AD  - College of Science, China Agricultural University, Beijing 100193, PR China.
FAU - Wang, Suli
AU  - Wang S
FAU - You, Xiangwei
AU  - You X
FAU - Dong, Jiannan
AU  - Dong J
FAU - Han, Lijun
AU  - Han L
FAU - Liu, Fengmao
AU  - Liu F
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Rapid Commun Mass Spectrom
JT  - Rapid communications in mass spectrometry : RCM
JID - 8802365
RN  - 0 (Plant Growth Regulators)
SB  - IM
MH  - Chromatography, High Pressure Liquid/*methods
MH  - Food Analysis/*methods
MH  - Fruit/chemistry/standards
MH  - Hydrogen-Ion Concentration
MH  - Solanum lycopersicum/*chemistry
MH  - Malus/*chemistry
MH  - Plant Growth Regulators/*analysis
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Tandem Mass Spectrometry/*methods
EDAT- 2011/10/19 06:00
MHDA- 2012/01/04 06:00
CRDT- 2011/10/19 06:00
PHST- 2011/10/19 06:00 [entrez]
PHST- 2011/10/19 06:00 [pubmed]
PHST- 2012/01/04 06:00 [medline]
AID - 10.1002/rcm.5225 [doi]
PST - ppublish
SO  - Rapid Commun Mass Spectrom. 2011 Nov 15;25(21):3289-97. doi: 10.1002/rcm.5225.