PMID- 23593883
OWN - NLM
STAT- MEDLINE
DCOM- 20140728
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 30
IP  - 12
DP  - 2012 Dec
TI  - [Determination of glufosinate residue in tea by liquid chromatography-tandem mass 
      spectrometry coupled with precolumn derivatization].
PG  - 1260-4
AB  - A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was 
      established for the determination of glufosinate (GLUF) residue in tea. The GLUF 
      was extracted with water for 30 min under ultrasonication, and cleaned-up using a 
      C18 solid phase extraction cartridge, then derived using 
      fluorenylmethylchloroformate (FMOC-Cl) in borate buffer for 2 h. The separation 
      was performed on a Kinetex C18 column with the mobile phases of acetonitrile and 
      5 mmol/L ammonium acetate aqueous solution (containing 0.2% (v/v) formic acid) in 
      a gradient elution mode. The identification and quantification of the GLUF were 
      carried out by MS/MS in negative electrospray ionization (ESI(-)) and multiple 
      reaction monitoring (MRM) mode, the quantification analysis was performed by 
      external standard method. The calibration curve showed good linearity in the 
      range of 2.5 - 50.0 microg/L with the correlation coefficient r2 > 0.999. The 
      limit of quantification (LOQ) was 0.10 mg/kg. The average recoveries of GLUF 
      spiked at 0.10, 0.50 and 1.00 mg/kg levels in tea were between 61.6% and 81.4%, 
      and the relative standard deviations (RSDs) were between 3.2% and 8.4%. The 
      method is simple, rapid, sensitive, accurate and suitable for the confirmation 
      and quantification of GLUF in tea.
FAU - Lin, Yonghui
AU  - Lin Y
AD  - Fujian Entry-Exit Inspection and Quarantine Bureau, Fuzhou 350001, China. 
      xmulyh@163.com
FAU - Liu, Zhengcai
AU  - Liu Z
FAU - Yang, Fang
AU  - Yang F
FAU - Qiu, Yuanjin
AU  - Qiu Y
FAU - Liu, Suzhen
AU  - Liu S
FAU - Su, Zhijiao
AU  - Su Z
FAU - Zhang, Qiong
AU  - Zhang Q
FAU - Xue, Zhimin
AU  - Xue Z
FAU - Fang, Yu
AU  - Fang Y
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Aminobutyrates)
RN  - 0 (Pesticide Residues)
RN  - 0 (Tea)
RN  - 51276-47-2 (phosphinothricin)
SB  - IM
MH  - Aminobutyrates/*analysis
MH  - Chromatography, Liquid
MH  - Food Contamination/*analysis
MH  - Pesticide Residues/*analysis
MH  - Tandem Mass Spectrometry
MH  - Tea/*chemistry
EDAT- 2013/04/19 06:00
MHDA- 2014/07/30 06:00
CRDT- 2013/04/19 06:00
PHST- 2013/04/19 06:00 [entrez]
PHST- 2013/04/19 06:00 [pubmed]
PHST- 2014/07/30 06:00 [medline]
AID - 10.3724/sp.j.1123.2012.07031 [doi]
PST - ppublish
SO  - Se Pu. 2012 Dec;30(12):1260-4. doi: 10.3724/sp.j.1123.2012.07031.