PMID- 24164041
OWN - NLM
STAT- MEDLINE
DCOM- 20150708
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 31
IP  - 7
DP  - 2013 Jul
TI  - [Determination of eight defoliant residues in cotton by accelerated solvent 
      extraction coupled with ultra performance liquid chromatography-tandem mass 
      spectrometry].
PG  - 697-702
AB  - A novel method has been developed for the rapid extraction and determination of 
      eight defoliants including thidiazuron, butiphos, methabenzthiazuron, abscisic 
      acid, carfentra-zone-ethyl, diuron, paraquat, and pyrithiobac-sodium in cotton by 
      accelerated solvent extraction (ASE) coupled with ultra performance liquid 
      chromatography-tandem mass spectrometry (UPLC-MS/MS). The defoliants in cotton 
      were extracted by ASE and the extracts were dried by a rotavapor, then 
      redissolved in the solvents of acetonitrile and water (1:9, v/v). The 
      chromatographic analysis was performed on an Acquity UPLC HSS T3 column (50 mmx 
      2. 1 mm, 1. 8 microm) by a gradient elution employing of acetonitrile and 0.05% 
      (v/v) formic acid as mobile phases. The analytes were detected by electrospray 
      ionization (ESI) tandem mass spectrometry with multiple reaction monitoring (MRM) 
      in positive ion mode. Good linearities (r >0.99) were observed between 0. 01 and 
      0. 3 mg/L for all the compounds. The recoveries and relative standard deviations 
      (RSDs) were obtained by spiking untreated samples with the eight defoliants at 0. 
      1, 0. 5 and 1.0 mg/kg. The average recoveries of the eight defoliants were from 
      (84. 18 +/- 8.04)% to (95.99 +/- 6.76)%. The precision values expressed as RSDs 
      were from 7. 04% to 10. 60% (n = 6). The limits of detection were 0. 8 - 29 
      microg/kg and the limits of quantification were 2.5 - 96 1/4g/kg for the 
      analytes. The results ahowed that the method is simple, rapid, sensitive and 
      accurate, and is suitable for the quantitative determination and confirmation of 
      the eight defoliants in cotton.
FAU - Wu, Gang
AU  - Wu G
AD  - Zhejiang Academy of Science and Technology for Inspection & Quarantine, Hangzhou 
      310015, China. wug_hz@163.com
FAU - Dong, Suozhuai
AU  - Dong S
FAU - Pan, Lulu
AU  - Pan L
FAU - Zhao, Shanhong
AU  - Zhao S
FAU - Wang, Lijun
AU  - Wang L
FAU - Guo, Fanglong
AU  - Guo F
FAU - Li, Dan
AU  - Li D
LA  - chi
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Herbicides)
RN  - 0 (Indicators and Reagents)
RN  - 0 (Solvents)
SB  - IM
MH  - *Chromatography, High Pressure Liquid
MH  - Gossypium/*chemistry
MH  - Herbicides/*analysis
MH  - Indicators and Reagents
MH  - Solvents
MH  - Spectrometry, Mass, Electrospray Ionization
MH  - *Tandem Mass Spectrometry
EDAT- 2013/10/30 06:00
MHDA- 2015/07/15 06:00
CRDT- 2013/10/30 06:00
PHST- 2013/10/30 06:00 [entrez]
PHST- 2013/10/30 06:00 [pubmed]
PHST- 2015/07/15 06:00 [medline]
AID - 10.3724/sp.j.1123.2012.12038 [doi]
PST - ppublish
SO  - Se Pu. 2013 Jul;31(7):697-702. doi: 10.3724/sp.j.1123.2012.12038.