PMID- 29372764
OWN - NLM
STAT- MEDLINE
DCOM- 20181001
LR  - 20181001
IS  - 1872-2059 (Electronic)
IS  - 1000-8713 (Linking)
VI  - 35
IP  - 11
DP  - 2017 Nov 8
TI  - [Determination of three organotin pesticide residues in apples and cabbages by 
      gas chromatography-electron impact/positive chemical ionization mass 
      spectrometry].
PG  - 1177-1183
LID - 10.3724/SP.J.1123.2017.07011 [doi]
AB  - A method for the simultaneous determination of fenbutatin oxide, triphenyltin and 
      cyhexatin in apples and cabbages was developed by gas chromatography-mass 
      spectrometry coupled with two different ionization techniques, electron impact 
      (EI) ionization and positive chemical ionization (PCI). At first, the samples 
      were digested by hydrobromic acid, and extracted by acetone-hexane (1:2, v/v). 
      The extracts were derivatized by sodium tetraethylborate as the derivatization 
      reagent, and cleaned up by the Florisil SPE columns. Finally, the samples were 
      analyzed by GC-EI/MS and GC-PCI/MS in selected ion monitoring (SIM) mode. The 
      results showed that good linearities were obtained with correlation coefficients 
      (r(2)) greater than 0.997 for fenbutatin oxide in the range of 75-500 mug/L in 
      both foods, triphenyltin in the range of 50-1000 mug/L in cabbages and 50-500 mug/L 
      in apples and cyhexatin in the range of 50-1000 mug/L in the two foods. The 
      accuracy was checked at three spiked levels (50, 100 and 200 mug/kg) in cabbages 
      and apples. The limits of detection (LODs, S/N=3) were 0.01-0.05 mg/kg (EI) and 
      0.01-0.02 mg/kg (PCI), and the limits of quantifications (LOQs, S/N=10) were 
      0.03-0.16 mg/kg (EI) and 0.02-0.06 mg/kg (PCI). The average recoveries ranged 
      from 59.24%-97.36% (apples) and 50.54%-94.54% (cabbages) in the mode of EI, and 
      the corresponding values were 65.38%-95.86% and 62.56%-90.44% in the mode of PCI. 
      The relative standard deviations (RSDs) were all less than 6.9% (n=6). The PCI 
      method can be used to improve the accuracy in comparing with the EI, in terms of 
      good selectivity and high sensitivity.
FAU - Cai, Lisheng
AU  - Cai L
AD  - Nanjing University of Science and Technology, Nanjing 210094, China.
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
FAU - Shen, Weijian
AU  - Shen W
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China. 
      shenwj18@jsciq.gov.cn.
FAU - Wang, Zhengping
AU  - Wang Z
AD  - Nanjing University of Science and Technology, Nanjing 210094, China.
FAU - Zhang, Rui
AU  - Zhang R
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
FAU - Ding, Tao
AU  - Ding T
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
FAU - Yu, Keyao
AU  - Yu K
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
FAU - Wang, Hong
AU  - Wang H
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
FAU - Zhang, Wenjun
AU  - Zhang W
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
FAU - Gong, Yuxia
AU  - Gong Y
AD  - Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.
LA  - chi
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Organotin Compounds)
RN  - 0 (Pesticide Residues)
RN  - 0 (Trialkyltin Compounds)
RN  - 8YJV11QB4R (cyhexatin)
RN  - 95T92AGN0V (triphenyltin)
RN  - ZSV4C2L4E7 (vendex)
SB  - IM
MH  - Brassica/*chemistry
MH  - Food Analysis/*methods
MH  - Gas Chromatography-Mass Spectrometry
MH  - Limit of Detection
MH  - Malus/*chemistry
MH  - Organotin Compounds
MH  - Pesticide Residues/*analysis
MH  - Trialkyltin Compounds
OTO - NOTNLM
OT  - cyhexatin
OT  - electron impact ionization (EI)
OT  - fentutatin oxide
OT  - gas chromatography-mass spectrometry (GC-MS)
OT  - positive chemical ionization (PCI)
OT  - triphenyltin
EDAT- 2018/01/27 06:00
MHDA- 2018/10/03 06:00
CRDT- 2018/01/27 06:00
PHST- 2018/01/27 06:00 [entrez]
PHST- 2018/01/27 06:00 [pubmed]
PHST- 2018/10/03 06:00 [medline]
AID - 10.3724/SP.J.1123.2017.07011 [doi]
PST - ppublish
SO  - Se Pu. 2017 Nov 8;35(11):1177-1183. doi: 10.3724/SP.J.1123.2017.07011.