PMID- 30136474
OWN - NLM
STAT- MEDLINE
DCOM- 20181017
LR  - 20181017
IS  - 1872-2059 (Electronic)
IS  - 1000-8713 (Linking)
VI  - 36
IP  - 6
DP  - 2018 Jun 8
TI  - [Determination of 53 pesticide residues in tea by gas chromatography-tandem mass 
      spectrometry and double internal standard method].
PG  - 531-540
LID - 10.3724/SP.J.1123.2018.03036 [doi]
AB  - A gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS) method with 
      tandem double columns was established for the determination of 53 pesticide 
      residues in tea. The sample was extracted by acetonitrile with buffering salts of 
      QuEChERS method, cleaned up with an ENVI-Carb/NH(2) solid-phase extractant, and 
      determined by GC-MS/MS. To reduce the matrix effect in GC-MS/MS, gulonic acid 
      lactone and sorbitol were added to the standard solutions as protectants; 
      additionally, anthraquione-D8 and triphenyl phosphate were used as double 
      internal standards. The linear ranges were from 20 to 500 mug/L for 52 pesticides, 
      and from 40 to 1000 mug/L for cypermethrin, with correlation coefficients higher 
      than 0.99. The limits of quantification (LOQs) of 28 pesticides were less than 10 
      mug/kg, and the LOQs of the other 25 pesticides ranged from 10 to 20 mug/kg. The 
      recoveries were in the range 72.5%-130.9%, and the relative standard deviations 
      (RSDs) were in the range 0.4%-19.4%. This method is simple, rapid, sensitive, and 
      reliable for the simultaneous identification and quantification of multiple 
      residues in tea.
FAU - Gao, Yixian
AU  - Gao Y
AD  - SGS-CSTC Standards Technical Services Co., Ltd. Xiamen Branch, Xiamen 361000, 
      China.
FAU - Chen, Pinghong
AU  - Chen P
AD  - SGS-CSTC Standards Technical Services Co., Ltd. Xiamen Branch, Xiamen 361000, 
      China.
FAU - Nie, Dandan
AU  - Nie D
AD  - SGS-CSTC Standards Technical Services Co., Ltd. Xiamen Branch, Xiamen 361000, 
      China.
LA  - chi
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Pesticide Residues)
RN  - 0 (Tea)
SB  - IM
MH  - Food Contamination/*analysis
MH  - Gas Chromatography-Mass Spectrometry
MH  - Pesticide Residues/*analysis
MH  - Solid Phase Extraction
MH  - Tandem Mass Spectrometry
MH  - Tea/*chemistry
OTO - NOTNLM
OT  - double internal standards
OT  - gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS)
OT  - pesticide residues
OT  - protectants
OT  - tandem double capillary chromatographic columns
OT  - tea
EDAT- 2018/08/24 06:00
MHDA- 2018/10/18 06:00
CRDT- 2018/08/24 06:00
PHST- 2018/08/24 06:00 [entrez]
PHST- 2018/08/24 06:00 [pubmed]
PHST- 2018/10/18 06:00 [medline]
AID - 10.3724/SP.J.1123.2018.03036 [doi]
PST - ppublish
SO  - Se Pu. 2018 Jun 8;36(6):531-540. doi: 10.3724/SP.J.1123.2018.03036.