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- E-ISSN 2288-8985
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Characteristics of trace analysis of potential diesel oxygenates using the factorial design in solid-phase microextraction with GC/FID
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2007, v.20 no.5, pp.370-382
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(2007). Characteristics of trace analysis of potential diesel oxygenates using the factorial design in solid-phase microextraction with GC/FID. Analytical Science and Technology, 20(5), 370-382.
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Abstract
In this study, solid-phase microextraction (SPME) technique using GC/FID was studied as a possible alternative to liquid-liquid extraction for the analysis of EGBE, DGBE, DBM and TGME in water, and an optimization condition of trace analysis of EGBE, DGBE, DBM and TGME using the factorial design was described. Experiments used a fractional factorial design method followed by central composite design allowing optimization of a number of factors as well as statical analysis of results. The response surface analysis showed that the extraction efficiency can be described by a second-order polynomial equation in which the salts concentration, extraction temperature, extraction time and sonication time are the major influences. Using DOE, a new data-dependent method was developed that improved the quantity of confidently analyzed EGBE, DGBE, DBM and TGME in water samples.
- keywords
- SPME, oxygenates, EGBE, DBM, response surface analysis
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