PMID- 34213294
OWN - NLM
STAT- MEDLINE
DCOM- 20210726
LR  - 20210726
IS  - 1872-2059 (Electronic)
IS  - 1000-8713 (Linking)
VI  - 38
IP  - 7
DP  - 2020 Jul 8
TI  - [Determination of 32 polychlorinated biphenyls in aquatic products by gas 
      chromatography-high-resolution mass spectrometry with accelerated solvent 
      extraction-purification simultaneously coupled to isotope internal standard 
      method].
PG  - 853-860
LID - 10.3724/SP.J.1123.2019.12006 [doi]
AB  - Gas chromatography (GC)-high-resolution mass spectrometry (HRMS) with accelerated 
      solvent extraction (ASE)-purification simultaneously coupled to the isotope 
      internal standard method is proposed for the determination of 32 polychlorinated 
      biphenyls (PCBs) in aquatic products. Synchronous purification was achieved by 
      adding 2 g of anhydrous sodium sulfate, 1 g of Cleanert Florisil, and 50 g of 
      neutral alumina as the adsorbent to the ASE system. The PCBs were extracted from 
      aquatic product samples using a dichloromethane-n-hexane (1:1, v/v) mixture at 
      100 ℃ with two extraction cycles. The extracting solution was purified twice with 
      0.5 mL concentrated sulfuric acid. After concentration to a constant volume, the 
      target compounds were detected by GC-HRMS and quantified by the isotope internal 
      standard method. Under the optimized conditions, the relative standard deviations 
      (RSDs) of the mean relative response factor (RRF) for the 32 PCBs in the range of 
      0.1-20 mug/L were less than 15%. The limits of quantification were 0.3-1.9 ng/kg. 
      At three spiked levels (5, 20, and 50 ng/kg) in grass carp and sea bass, the 
      recoveries of the 32 PCBs were between 71.9% and 119.0%, with the RSDs varying 
      from 3.5% to 19.6%. This method effectively reduces the matrix interference and 
      shows high sensitivity, good reproducibility, and stable recovery, thus proving 
      useful for the detection of PCBs in aquatic products.
FAU - Jiang, Feng
AU  - Jiang F
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
FAU - Yu, Tingting
AU  - Yu T
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
FAU - Li, Min
AU  - Li M
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
FAU - Rong, Mao
AU  - Rong M
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
FAU - Han, Li
AU  - Han L
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
FAU - Song, Zhe
AU  - Song Z
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
FAU - Zhu, Xiaoling
AU  - Zhu X
AD  - Hubei Provincial Institute for Food Supervision and Test, Hubei Provincial 
      Engineering and Technology Research Center for Food Quality and Safety Test, 
      Wuhan 430075, China.
LA  - chi
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Isotopes)
RN  - 0 (Solvents)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Food Analysis/*methods
MH  - Food Contamination/*analysis
MH  - Gas Chromatography-Mass Spectrometry
MH  - Isotopes
MH  - *Polychlorinated Biphenyls/analysis
MH  - Reproducibility of Results
MH  - Seafood/*analysis
MH  - Solvents
OTO - NOTNLM
OT  - accelerated solvent extraction (ASE)
OT  - aquatic products
OT  - gas chromatography-high resolution mass spectrometry (GC-HRMS)
OT  - isotope internal standard
OT  - polychlorinated biphenyls (PCBs)
EDAT- 2021/07/03 06:00
MHDA- 2021/07/27 06:00
CRDT- 2021/07/02 09:13
PHST- 2021/07/02 09:13 [entrez]
PHST- 2021/07/03 06:00 [pubmed]
PHST- 2021/07/27 06:00 [medline]
AID - 10.3724/SP.J.1123.2019.12006 [doi]
PST - ppublish
SO  - Se Pu. 2020 Jul 8;38(7):853-860. doi: 10.3724/SP.J.1123.2019.12006.