PMID- 18724662
OWN - NLM
STAT- MEDLINE
DCOM- 20100617
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 26
IP  - 3
DP  - 2008 May
TI  - [Two sample pretreatment methods and their applications in the determination of 
      111 pesticides and related chemicals in aquatic products].
PG  - 292-300
AB  - Two sample pretreatment methods were developed and applied to determine 111 
      residues of pesticides in aquatic products. For Method I, the residues were 
      extracted from homogenized tissue with acetone-ethylacetate-n-hexane (1 : 1 : 1, 
      v/v/v), and then were redissolved in acetonitrile; for Method II, the residues 
      were extracted from homogenized tissue with acetonitrile - water under 
      ultrasonication, and then were separated by liquid-liquid partition. The 
      supernatants were purified using solid phase extraction (Envi-18 and PSA columns) 
      prior to the GC-MS analysis. The determination was performed in selected ion 
      monitoring (SIM) mode with the external calibration for quantitative analysis. 
      Under the optimal conditions, the detection limits (S/N = 3) for residues of 
      pesticides were in the ranges of 0.001 -0.026 mg/kg. The recoveries of Method I 
      for the spiked standards at concentration of 0.25 mg/kg were 72% - 113% with the 
      relative standard deviations (RSDs) of 3.4% - 12.1%. The recoveries of Method II 
      were 51% - 127%, among which the recoveries for 94% pesticides were between 70% 
      and 120% with the RSDs of 3.2% - 13.8%.
FAU - Su, Jianfeng
AU  - Su J
AD  - Fujian Fairreach Food Safety Testing Co., Ltd., Fuzhou 350015, China. 
      sujianfeng@fairreach.com
FAU - Lin, Guyuan
AU  - Lin G
FAU - Lian, Wenhao
AU  - Lian W
FAU - Zhang, Jinhu
AU  - Zhang J
FAU - Chen, Donghu
AU  - Chen D
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Pesticide Residues)
RN  - 0 (Solvents)
SB  - IM
MH  - Analytic Sample Preparation Methods/*methods
MH  - Food Analysis/*methods
MH  - Food Contamination/*analysis
MH  - Gas Chromatography-Mass Spectrometry
MH  - Limit of Detection
MH  - Linear Models
MH  - Pesticide Residues/*analysis/chemistry/*isolation & purification
MH  - Seafood/*analysis
MH  - Solvents/chemistry
EDAT- 2008/08/30 09:00
MHDA- 2010/06/18 06:00
CRDT- 2008/08/30 09:00
PHST- 2008/08/30 09:00 [pubmed]
PHST- 2010/06/18 06:00 [medline]
PHST- 2008/08/30 09:00 [entrez]
AID - 10.1016/s1872-2059(08)60018-8 [doi]
PST - ppublish
SO  - Se Pu. 2008 May;26(3):292-300. doi: 10.1016/s1872-2059(08)60018-8.