PMID- 27183089
OWN - NLM
STAT- MEDLINE
DCOM- 20170126
LR  - 20170126
IS  - 1873-376X (Electronic)
IS  - 1570-0232 (Linking)
VI  - 1023-1024
DP  - 2016 Jun 15
TI  - Utilizing a novel sorbent in the solid phase extraction for simultaneous 
      determination of 15 pesticide residues in green tea by GC/MS.
PG  - 44-54
LID - S1570-0232(16)30292-6 [pii]
LID - 10.1016/j.jchromb.2016.04.053 [doi]
AB  - Pesticide residues exceeding standard in green tea is a widespread problem of the 
      world's attention, containing organochlorine pesticides (OCPs), organophosphorus 
      pesticides (OPPs), and pyrethroids. In this research, three dimensionally 
      honeycomb Mg-Al layered double oxide (TDH-Mg-Al-LDO) combined with graphitized 
      carbon black (GCB), packed as a column, was used as a novel solid phase 
      extraction sorbent, applying in simultaneous determination of 15 pesticide 
      residues in green tea coupled with GC-MS. Compared with different type of SPE 
      column, it showed that TDH-Mg-Al-LDO exhibited great advantages in the extraction 
      of 15 pesticide residues from green tea, which was seldom reported before. 
      Different experiment conditions, such as combination order of Mg-Al-LDO and GCB, 
      dosage of sorbents, type and volume of eluting solvent were thoroughly studied 
      and optimized. The limits of detection (LODs) of 15 pesticides ranged from 0.9 to 
      24.2ng/g and the limits of quantifications (LOQs) were ranging from 3.0 to 
      80.0ng/g. The recoveries using this method at three spiked concentration levels 
      (10, 100 and 500ng/g for Fenthion, P,P'-DDE, O,P'-DDT, P,P'-DDD and Bifenthrin, 
      100, 500 and 2000ng/g for the others) range from 71.1 to 119.0%. The relative 
      standard deviation (RSD) was from 0.1 to 7.6% in all case. The result indicated 
      that the proposed analytical method had been successfully applied for the 
      simultaneous determination of 15 pesticide residues in commercial green tea.
CI  - Copyright (c) 2016 Elsevier B.V. All rights reserved.
FAU - Huo, Feifei
AU  - Huo F
AD  - State Key Laboratory of Chemical Resource Engineering, Beijing University of 
      Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of 
      Environmentally Harmful Chemical Analysis, Beijing University of Chemical 
      Technology, Beijing 100029, China.
FAU - Tang, Hua
AU  - Tang H
AD  - Division of Metrology in Chemistry, National Institute of Metrology, Beijing 
      100013, China.
FAU - Wu, Xue
AU  - Wu X
AD  - Division of Metrology in Chemistry, National Institute of Metrology, Beijing 
      100013, China.
FAU - Chen, Dazhou
AU  - Chen D
AD  - Division of Metrology in Chemistry, National Institute of Metrology, Beijing 
      100013, China.
FAU - Zhao, Tan
AU  - Zhao T
AD  - State Key Laboratory of Chemical Resource Engineering, Beijing University of 
      Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of 
      Environmentally Harmful Chemical Analysis, Beijing University of Chemical 
      Technology, Beijing 100029, China.
FAU - Liu, Pei
AU  - Liu P
AD  - State Key Laboratory of Chemical Resource Engineering, Beijing University of 
      Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of 
      Environmentally Harmful Chemical Analysis, Beijing University of Chemical 
      Technology, Beijing 100029, China.
FAU - Li, Lei
AU  - Li L
AD  - State Key Laboratory of Chemical Resource Engineering, Beijing University of 
      Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of 
      Environmentally Harmful Chemical Analysis, Beijing University of Chemical 
      Technology, Beijing 100029, China. Electronic address: lilei@mail.buct.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20160504
PL  - Netherlands
TA  - J Chromatogr B Analyt Technol Biomed Life Sci
JT  - Journal of chromatography. B, Analytical technologies in the biomedical and life 
      sciences
JID - 101139554
RN  - 0 (Oxides)
RN  - 0 (Pesticide Residues)
RN  - 0 (Tea)
SB  - IM
MH  - Gas Chromatography-Mass Spectrometry/methods
MH  - Oxides/chemistry
MH  - Pesticide Residues/*analysis/chemistry/*isolation & purification
MH  - Solid Phase Extraction/*methods
MH  - Tea/*chemistry
OTO - NOTNLM
OT  - GC-MS
OT  - Green tea
OT  - Pesticide residues
OT  - Solid phase extraction
OT  - TDH-Mg-Al-LDO
EDAT- 2016/05/18 06:00
MHDA- 2017/01/27 06:00
CRDT- 2016/05/17 06:00
PHST- 2015/12/15 00:00 [received]
PHST- 2016/04/09 00:00 [revised]
PHST- 2016/04/30 00:00 [accepted]
PHST- 2016/05/17 06:00 [entrez]
PHST- 2016/05/18 06:00 [pubmed]
PHST- 2017/01/27 06:00 [medline]
AID - S1570-0232(16)30292-6 [pii]
AID - 10.1016/j.jchromb.2016.04.053 [doi]
PST - ppublish
SO  - J Chromatogr B Analyt Technol Biomed Life Sci. 2016 Jun 15;1023-1024:44-54. doi: 
      10.1016/j.jchromb.2016.04.053. Epub 2016 May 4.