PMID- 18214700
OWN - NLM
STAT- MEDLINE
DCOM- 20090209
LR  - 20211020
IS  - 0167-6369 (Print)
IS  - 0167-6369 (Linking)
VI  - 147
IP  - 1-3
DP  - 2008 Dec
TI  - Direct screening of ground water samples for fuel oxygenates by headspace liquid 
      phase microextraction-gas chromatography.
PG  - 211-22
LID - 10.1007/s10661-007-0113-5 [doi]
AB  - The applicability of the headspace liquid phase microextraction and gas 
      chromatography (HS-LPME/GC) for the expeditious and reliable screening of 68 well 
      water samples for selected fuel oxygenates compounds, viz. methyl tertiary-butyl 
      ether (MTBE), tertiary-amyl methyl ether (TAME), ethyl tertiary-butyl ether 
      (ETBE) and n-butyl ethyl ether (n-BEE) has been evaluated. The method used 3 
      microl of 1:1 benzyl alcohol/1-octanol as extraction solvent, 20 min extraction 
      time with stirring at 1,250 rpm, at 20 degrees C and salt addition of a mixture 
      of 0.3 g ml(-1) sodium sulphate/0.1 g ml(-1) sodium chloride. The enrichment 
      factors of this method were from 171 to 571. Limits of detection were in the 
      range of 77-110 ng l(-1). The relative standard deviations (RSDs) at 0.05, 0.50 
      and 10.0 mg l(-1) of spiking levels were in the range of 1.28-6.80% with 
      recoveries between 96.2 and 106.0%. Sixty-eight groundwater wells that were 
      located near different gasoline reservoirs in eight largest cities of the Sistan 
      and Balouchestan province were screened by the method. Eight contaminated wells 
      were identified contained MTBE at levels between 0.3 and 1.7 mg l(-1). In all 
      cases, other target analytes were at low concentrations or not detected.
FAU - Kaykhaii, Massoud
AU  - Kaykhaii M
AD  - Department of Chemistry, Sistan and Balouchestan University, Zahedan, 98135-674, 
      Iran. kaykhaii@hamoon.usb.ac.ir
FAU - Mirbaloochzahi, Mohammad Reza
AU  - Mirbaloochzahi MR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080123
PL  - Netherlands
TA  - Environ Monit Assess
JT  - Environmental monitoring and assessment
JID - 8508350
RN  - 0 (Ethyl Ethers)
RN  - 0 (Methyl Ethers)
RN  - 0 (Water Pollutants, Chemical)
RN  - 29I4YB3S89 (methyl tert-butyl ether)
RN  - 3R9B16WR19 (ethyl tert-butyl ether)
RN  - 94525J1AP8 (tertiary-amyl methyl ether)
SB  - IM
MH  - Chemical Fractionation/*methods
MH  - Chromatography, Gas/*methods
MH  - Ethyl Ethers/analysis
MH  - Methyl Ethers/analysis
MH  - Water Pollutants, Chemical/*analysis
MH  - Water Supply/*analysis
EDAT- 2008/01/25 09:00
MHDA- 2009/02/10 09:00
CRDT- 2008/01/25 09:00
PHST- 2007/02/02 00:00 [received]
PHST- 2007/12/19 00:00 [accepted]
PHST- 2008/01/25 09:00 [pubmed]
PHST- 2009/02/10 09:00 [medline]
PHST- 2008/01/25 09:00 [entrez]
AID - 10.1007/s10661-007-0113-5 [doi]
PST - ppublish
SO  - Environ Monit Assess. 2008 Dec;147(1-3):211-22. doi: 10.1007/s10661-007-0113-5. 
      Epub 2008 Jan 23.