DETERMINATION OF SOLUBLE CU(I) AND CU(II) SPECIES IN JET FUEL BY ELECTROSPRAY-IONIZATION MASS-SPECTROMETRY

被引：69

作者：

GATLIN, CL

TURECEK, F

VAISAR, T

机构：

[1] UNIV WASHINGTON,DEPT CHEM,SEATTLE,WA 98195

[2] MOLECUMET,BELLEVUE,WA 98005

来源：

ANALYTICAL CHEMISTRY | 1994年 / 66卷 / 22期

关键词：

D O I：

10.1021/ac00094a016

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Soluble Cu(I) and Cu(II) species in jet fuel are analyzed either by electrospray ionization mass spectrometry combined with on-line liquid chromatography on poly(vinyl alcohol) sorbent or by off-line solvent extraction. Detection limits in the 30-150 ppb range are achieved for Cu(II)DMD detected by mass spectrometry as its protonated ion. Low parts per billion detection limits are possible for the sodium-ion adduct. Collisional activation of Cu2+ carboxylate complexes in the gas phase induces intramolecular electron transfer, resulting in reduction of the metal ion to Cu+ with concomitant ligand oxidation and elimination.

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页码：3950 / 3958

页数：9

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