Sulfur-Containing Molecules Observed in Hydrophobic and Amphiphilic Fractions of Dissolved Organic Matter by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
Four fractions of dissolved organic matter (DOM) (hydrophobic acids,HPO-A; hydrophobic neutrals HPO-N; amphiphilic acids,AMP-A; and amphiphilic neutrals,AMP-N) were identified using elcctrospray ionization coupled to ultrahigh resolution Fourier transform ion cyclotron resonance mass spectrometer.The fractions were isolated from an off-stream Colorado River water reservoir in Arizona,USA.A great portion of heteroatoms-containing (i.e.,N,S,P) formulas were identified in the neutrals.Only 3.8% of the identified molecules were common between four fractions.The neutral fractions showed a high portion of high intensity S-containing molecules which can be attributed to textile surfactants (i.e.,linear alkylbenzene sulfonates,etc) and their biodegradation and biotransformation derivatives indicating anthropogenic input on-site.
FTICR-MS Electrospray ionization ESI DOM Hydrophobic Amphilphilic
Guixue Song Rajaa Mesfiou Aaron Dotson Paul Westerhoff Patrick Hatcher
School of Sustainable Engineering and The Built Environment,Arizona State University,Tempe,AZ 85287, Department of Chemistry and Biochemistry,Old Dominion University,Norfolk,VA 23529,USA School of Sustainable Engineering and The Built Environment,Arizona State University,Tempe,AZ 85287,
国际会议
the 16th Meeting of the International Humic Substances Society (第十六届国际腐殖物质学会大会(IHSS 16))
杭州
英文
43-46
2012-09-09（万方平台首次上网日期，不代表论文的发表时间）