Relative mass defect filtering of high-resolution mass spectra for exploring minor selenium volatiles in selenium-enriched green onions

被引：23

作者：

Shah, Monika ^{[1
]}

Meija, Juris ^{[1
]}

Caruso, Joseph A. ^{[1
]}

机构：

[1] Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA

来源：

ANALYTICAL CHEMISTRY | 2007年 / 79卷 / 03期

关键词：

HPLC-ICP-MS; NATURAL-ABUNDANCE; ALLIUM CHEMISTRY; IDENTIFICATION; SPECTROMETRY; SPECIATION; PLANTS;

D O I：

10.1021/ac060703k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, the presence of minor Se-containing volatiles in Se-enriched green onions (Allium fistulosum) was investigated using the combination of high-resolution mass spectrometry, inductively coupled plasma mass spectrometry, and a simple relative mass defect-based algorithm to aid trace level analysis of unknown components. This confirmed the structures of volatiles reported previously, along with several unreported small molecular weight Se-containing volatiles from plants, such as MeSeSeSMe. This data analysis technique was also useful to link the results obtained from molecular and elemental mass spectrometry thus aiding in the search for new trace level Se-containing volatiles.

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收藏

页码：846 / 853

页数：8

相关论文

共 17 条

[1] Seleno-compounds in garlic and onion [J].

Arnault, I ;

Auger, J .

JOURNAL OF CHROMATOGRAPHY A, 2006, 1112 (1-2) :23-30

[2] Allium chemistry: Natural abundance of organoselenium compounds from garlic, onion and related plants and in human garlic breath [J].

Block, E ;

Cai, XJ ;

Uden, PC ;

Zhang, X ;

Quimby, BD ;

Sullivan, JJ .

PURE AND APPLIED CHEMISTRY, 1996, 68 (04) :937-944

[3] ALLIUM CHEMISTRY - IDENTIFICATION OF NATURAL-ABUNDANCE ORGANOSELENIUM VOLATILES FROM GARLIC, ELEPHANT GARLIC, ONION, AND CHINESE CHIVE USING HEADSPACE GAS-CHROMATOGRAPHY WITH ATOMIC-EMISSION DETECTION [J].

CAI, XJ ;

UDEN, PC ;

BLOCK, E ;

ZHANG, X ;

QUIMBY, BD ;

SULLIVAN, JJ .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1994, 42 (10) :2081-2084

[4] Effects of selenium supplementation for cancer prevention in patients with carcinoma of the skin a randomized controlled trial - A randomized controlled trial [J].

Clark, LC ;

Combs, GF ;

Turnbull, BW ;

Slate, EH ;

Chalker, DK ;

Chow, J ;

Davis, LS ;

Glover, RA ;

Graham, GF ;

Gross, EG ;

Krongrad, A ;

Lesher, JL ;

Park, HK ;

Sanders, BB ;

Smith, CL ;

Taylor, JR .

JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1996, 276 (24) :1957-1963

[5] 'Mass defect' tags for biomolecular mass spectrometry [J].

Hall, MP ;

Ashrafi, S ;

Obegi, I ;

Petesch, R ;

Peterson, JN ;

Schneider, LV .

JOURNAL OF MASS SPECTROMETRY, 2003, 38 (08) :809-816

[6] Kendrick mass defect spectrum: A compact visual analysis for ultrahigh-resolution broadband mass spectra [J].

Hughey, CA ;

Hendrickson, CL ;

Rodgers, RP ;

Marshall, AG ;

Qian, KN .

ANALYTICAL CHEMISTRY, 2001, 73 (19) :4676-4681

[7] Selenium speciation in enriched and natural samples by HPLC-ICP-MS and HPLC-ESI-MS with perfluorinated carboxylic acid ion-pairing agents [J].

Kotrebai, M ;

Birringer, M ;

Tyson, JF ;

Block, E ;

Uden, PC .

ANALYST, 2000, 125 (01) :71-78

[8] Integrated mass spectrometry in (semi-)metal speciation and its potential in phytochemistry [J].

Meija, J ;

Montes-Bayón, M ;

Caruso, JA ;

Sanz-Medel, A .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2006, 25 (01) :44-51

[9] Selenium and sulfur trichalcogen ides from the chalcogenide exchange reaction [J].

Meija, J ;

Caruso, JA .

INORGANIC CHEMISTRY, 2004, 43 (23) :7486-7492

[10] Interpretation of alkyl diselenide and selenosulfenate mass spectra [J].

Meija, J ;

Beck, TL ;

Caruso, JA .

JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, 2004, 15 (09) :1325-1332