PMID- 23256391
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20130808
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 30
IP  - 8
DP  - 2012 Aug
TI  - [Determination of kepone residue in seawater by gas chromatography coupled with 
      electron capture detector].
PG  - 847-50
AB  - The effects of extraction solvent, capillary column, cleanup method, co-eluted 
      analytes and other influencing factors on the detection of kepone in seawater 
      were investigated. The analytical method of gas chromatography (GC) coupled with 
      electron capture detector (ECD) was established to determine kepone in seawater. 
      In the method, liquid-liquid extraction and sulfuric acid cleanup were used in 
      the sample pre-processing. Chromatographic analysis was performed on a DB-5 
      capillary column with external standard method. The kepone was extracted from a 1 
      L seawater sample by 50 mL dichloromethane. Sulfuric acid was used to remove the 
      interference materials co-extracted from the sample. After cleanup, the extract 
      was dissolved in 1% (v/v) methanol/hexane solvent and analyzed by GC-ECD. In the 
      linear range from 5 microg/L to 100 microg/L of kepone, the correlation 
      coefficient was 0.998 9. The average spiked recoveries were 81% - 108% with the 
      relative standard deviations (RSDs) of 1.2% -5.1% (n = 6). The detection limit 
      was 0.6 ng/L. This method shows good extraction efficiency, high sensitivity and 
      good reproducibility, and is suitable for the determination of kepone in 
      seawater.
FAU - Wang, Yanjie
AU  - Wang Y
AD  - Key Laboratory for Ecological Environment in Coastal Areas of State Oceanic 
      Administration, National Marine Environmental Monitoring Center, Dalian 116023, 
      China.
FAU - Na, Guangshui
AU  - Na G
FAU - Wang, Zhen
AU  - Wang Z
FAU - Yao, Ziwei
AU  - Yao Z
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2012/12/22 06:00
MHDA- 2012/12/22 06:01
CRDT- 2012/12/22 06:00
PHST- 2012/12/22 06:00 [entrez]
PHST- 2012/12/22 06:00 [pubmed]
PHST- 2012/12/22 06:01 [medline]
AID - 10.3724/sp.j.1123.2012.04013 [doi]
PST - ppublish
SO  - Se Pu. 2012 Aug;30(8):847-50. doi: 10.3724/sp.j.1123.2012.04013.