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" ABSTRAK
Complex air sample extracts were prefractionated on acidic- and basic-buffered silica. Compound overlap between acidic and basic polar substance (e.g. substituted polycylyc aromatic hydrocarbons) was greatly reduced, facilitating identification by gas chromatography-mass spectrometry. Furthermore, additional information on compound acidity and polarity is obtained, which helps to characterize compounds with identical electron-impact mass spectra but different structures ... "

Netherlands: Elsevier Science B.V., 2018

540 JC

Majalah, Jurnal, Buletin  Universitas Indonesia Library

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Fox, John

New York: John Wiley & Sons, 1984

519.5 FOX l

Buku Teks  Universitas Indonesia Library

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