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Comparison of Liquid-Liquid Extraction and Solid-Phase Extraction Coupled with GC/MS for Determination of Priority Pollutants in Water
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1994, v.7 no.4, pp.441-453
Yook,
K., Hong,
S., &
Kim,
J.
(1994). Comparison of Liquid-Liquid Extraction and Solid-Phase Extraction Coupled with GC/MS for Determination of Priority Pollutants in Water. Analytical Science and Technology, 7(4), 441-453.
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Abstract
Two extraction methods, liquid-liquid extraction(LLE) and solid-phase extraction(SPE), coupled with GC/MS were compared as preconcentration procedures for priority pollutants in water. Among the semi-volatile priority pollutants, 11 acid and 44 base/neutral compounds were spiked in reagent water. With LLE, which is a modification of EPA Method 625, the overall mean recovery of the 54 compounds was 91% with a mean relative standard deviation(RSD) of 4.6%. With SPE, the overall mean recovery of the 52 compounds was 53% with a mean RSD of 8.9%. The detection limits of both methods were in the range of <TEX>$1{\sim}5{\mu}g/l$</TEX>.
- keywords
- LLE, SPE, GC/MS, priority pollutant
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