Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization. / Kurvinen, J.-P.; Mu, Huiling; Kallio, H.; Xu, X.; Høy, Carl-Erik.

In: Lipids, Vol. 36, No. 12, 01.01.2001, p. 1377-1382.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Kurvinen, J-P, Mu, H, Kallio, H, Xu, X & Høy, C-E 2001, 'Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization', Lipids, vol. 36, no. 12, pp. 1377-1382.

APA

Kurvinen, J-P., Mu, H., Kallio, H., Xu, X., & Høy, C-E. (2001). Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization. Lipids, 36(12), 1377-1382.

Vancouver

Kurvinen J-P, Mu H, Kallio H, Xu X, Høy C-E. Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization. Lipids. 2001 Jan 1;36(12):1377-1382.

Author

Kurvinen, J.-P. ; Mu, Huiling ; Kallio, H. ; Xu, X. ; Høy, Carl-Erik. / Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization. In: Lipids. 2001 ; Vol. 36, No. 12. pp. 1377-1382.

Bibtex

@article{bf07f99be21944dabdaa53a0afd332de,
title = "Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization",
abstract = "Tandem mass spectrometry based on ammonia negative ion chemical ionization and sample introduction via direct exposure probe was applied to analysis of regioisomeric structures of octanoic acid containing structured triacylglycerols (TAG) of type MML, MLM, MLL, and LML (M, medium-chain fatty acid; L, long-chain fatty acid). Collision-induced dissociation of deprotonated parent TAG with argon was used to produce daughter ion spectra with appropriate fragmentation patterns for structure determination. Fatty acids constituting the TAG molecule were identified according to [RCO ] ions in the daughter ion spectra. With the standard curve for ratios of [MH-RCO H-100] ions corresponding to each [RCO ] ion, determined with known mixtures of sn-1/3 and sn-2 regioisomers of structured TAG, it was possible to determine the proportions of different regioisomers in unknown samples. The method enabled quantification of MML- and MLM-type structured TAG. In the case of MLL- and LML-type TAG, it was possible to determine the most abundant regioisomer in the unknown mixture and estimate the proportions of regioisomers when there were more than 50% MLL-type isomers in the mixture.",
author = "J.-P. Kurvinen and Huiling Mu and H. Kallio and X. Xu and Carl-Erik H{\o}y",
year = "2001",
month = jan,
day = "1",
language = "English",
volume = "36",
pages = "1377--1382",
journal = "Lipids",
issn = "0024-4201",
publisher = "Springer",
number = "12",

}

RIS

TY - JOUR

T1 - Regioisomers of octanoic acid-containing structured triacylglycerols analyzed by tandem mass spectrometry using ammonia negative ion chemical ionization

AU - Kurvinen, J.-P.

AU - Mu, Huiling

AU - Kallio, H.

AU - Xu, X.

AU - Høy, Carl-Erik

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Tandem mass spectrometry based on ammonia negative ion chemical ionization and sample introduction via direct exposure probe was applied to analysis of regioisomeric structures of octanoic acid containing structured triacylglycerols (TAG) of type MML, MLM, MLL, and LML (M, medium-chain fatty acid; L, long-chain fatty acid). Collision-induced dissociation of deprotonated parent TAG with argon was used to produce daughter ion spectra with appropriate fragmentation patterns for structure determination. Fatty acids constituting the TAG molecule were identified according to [RCO ] ions in the daughter ion spectra. With the standard curve for ratios of [MH-RCO H-100] ions corresponding to each [RCO ] ion, determined with known mixtures of sn-1/3 and sn-2 regioisomers of structured TAG, it was possible to determine the proportions of different regioisomers in unknown samples. The method enabled quantification of MML- and MLM-type structured TAG. In the case of MLL- and LML-type TAG, it was possible to determine the most abundant regioisomer in the unknown mixture and estimate the proportions of regioisomers when there were more than 50% MLL-type isomers in the mixture.

AB - Tandem mass spectrometry based on ammonia negative ion chemical ionization and sample introduction via direct exposure probe was applied to analysis of regioisomeric structures of octanoic acid containing structured triacylglycerols (TAG) of type MML, MLM, MLL, and LML (M, medium-chain fatty acid; L, long-chain fatty acid). Collision-induced dissociation of deprotonated parent TAG with argon was used to produce daughter ion spectra with appropriate fragmentation patterns for structure determination. Fatty acids constituting the TAG molecule were identified according to [RCO ] ions in the daughter ion spectra. With the standard curve for ratios of [MH-RCO H-100] ions corresponding to each [RCO ] ion, determined with known mixtures of sn-1/3 and sn-2 regioisomers of structured TAG, it was possible to determine the proportions of different regioisomers in unknown samples. The method enabled quantification of MML- and MLM-type structured TAG. In the case of MLL- and LML-type TAG, it was possible to determine the most abundant regioisomer in the unknown mixture and estimate the proportions of regioisomers when there were more than 50% MLL-type isomers in the mixture.

UR - http://www.scopus.com/inward/record.url?scp=0035703521&partnerID=8YFLogxK

M3 - Journal article

AN - SCOPUS:0035703521

VL - 36

SP - 1377

EP - 1382

JO - Lipids

JF - Lipids

SN - 0024-4201

IS - 12

ER -

ID: 45573322