PMID- 19803143
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20101005
LR  - 20161018
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 27
IP  - 3
DP  - 2009 May
TI  - [Determination of benzene and toluene in gasoline by two-dimensional gas 
      chromatography and capillary column].
PG  - 346-50
AB  - A novel two-dimensional gas chromatographic method, used for the determination of 
      benzene and toluene in gasoline, was established by the capillary flow technology 
      (Deans Switch) and universal capillary columns HP-5 (30 m x 0.32 mm x 0.25 
      microm) and Rtx-TCEP (30 m x 0.25 mm x 0.4 microm). Benzene, internal standard 
      and toluene, which co-eluted with some saturated components from a non-polar 
      column HP-5, were cut to a polar column Rtx-TCEP by Deans Switch and allowed to 
      be fully resolved from saturated components. The linearity test showed that the 
      correlation coefficient r2 values for benzene and toluene were 0.9994 and 0.9999, 
      respectively. The results showed that the relative standard deviations (RSDs) of 
      standard samples in five continued tests were within 1.5% and the recoveries of 
      added standards tests were from 96.8% to 103.8%. This two-dimensional gas 
      chromatographic method was compared to the standard analytical method for 
      determining the concentrations of benzene and toluene in gasoline (SH/T 
      0713-2002). The results were in excellent agreement with the values obtained by 
      SH/T 0713. The method is quick, simple and useful for the determination of 
      benzene and toluene in gasoline.
FAU - Li, Jiwen
AU  - Li J
AD  - Standardlization Department, Shanghai Research Institute of Petrochemical 
      Technology, Shanghai 201208, China. lijiwen8@hotmail.com
FAU - Li, Wei
AU  - Li W
FAU - Wang, Chuan
AU  - Wang C
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2009/10/07 06:00
MHDA- 2009/10/07 06:01
CRDT- 2009/10/07 06:00
PHST- 2009/10/07 06:00 [entrez]
PHST- 2009/10/07 06:00 [pubmed]
PHST- 2009/10/07 06:01 [medline]
PST - ppublish
SO  - Se Pu. 2009 May;27(3):346-50.