GROUP ISOLATION OF NICKEL AND VANADYL PORPHYRINS FROM CRUDE OIL USING MACROPOROUS SILICA GEL.

David H. Freeman; Rosalie M. Angeles; Katherine Haines Freeman; Thomas C. Hoering; Joseph S. Flynn; Tracie A. Lango; C. T. Homonay-Preyer

GROUP ISOLATION OF NICKEL AND VANADYL PORPHYRINS FROM CRUDE OIL USING MACROPOROUS SILICA GEL.

David H. Freeman, Rosalie M. Angeles, Katherine Haines Freeman, Thomas C. Hoering, Joseph S. Flynn, Tracie A. Lango, C. T. Homonay-Preyer

Geosciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

An efficient ten-fold concentration of combined nickel and vanadyl porphyrins in crude oil is obtained by liquid column chromatography with disposable macroporous silica gel. The concentrate contains the biomarker metalloporphyrins based on chromatographic and spectral comparisons with etioporphyrin-I standard compounds. The concentrate is free of asphaltene materials that would otherwise cause major chromatographic interference. The procedure, begins with one gram of crude oil sorbed on top of a column containing 5 grams of 500 Angstrom pore size silica gel. The initial elution is with petroleum ether:methylene chloride (97v:3v) to remove saturated and aromatic hydrocarbons. The metalloporphyrins are eluted next with methyl acetate while the remaining asphaltene components are immobilized. In a second step, 100 Angstrom silica gel is used to further separate the metalloporphyrins. The method is rapid and is applicable to processing large numbers of samples.

Original language	English (US)
Title of host publication	ACS Symposium Series
Editors	Royston H. Filby, Jan F. Branthaver
Publisher	ACS
Pages	402-422
Number of pages	21
ISBN (Print)	0841214042
State	Published - 1987

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

Cite this

@inproceedings{f32913eb68d5427ba3d566003808b178,

title = "GROUP ISOLATION OF NICKEL AND VANADYL PORPHYRINS FROM CRUDE OIL USING MACROPOROUS SILICA GEL.",

abstract = "An efficient ten-fold concentration of combined nickel and vanadyl porphyrins in crude oil is obtained by liquid column chromatography with disposable macroporous silica gel. The concentrate contains the biomarker metalloporphyrins based on chromatographic and spectral comparisons with etioporphyrin-I standard compounds. The concentrate is free of asphaltene materials that would otherwise cause major chromatographic interference. The procedure, begins with one gram of crude oil sorbed on top of a column containing 5 grams of 500 Angstrom pore size silica gel. The initial elution is with petroleum ether:methylene chloride (97v:3v) to remove saturated and aromatic hydrocarbons. The metalloporphyrins are eluted next with methyl acetate while the remaining asphaltene components are immobilized. In a second step, 100 Angstrom silica gel is used to further separate the metalloporphyrins. The method is rapid and is applicable to processing large numbers of samples.",

author = "Freeman, {David H.} and Angeles, {Rosalie M.} and Freeman, {Katherine Haines} and Hoering, {Thomas C.} and Flynn, {Joseph S.} and Lango, {Tracie A.} and Homonay-Preyer, {C. T.}",

year = "1987",

language = "English (US)",

isbn = "0841214042",

pages = "402--422",

editor = "Filby, {Royston H.} and Branthaver, {Jan F.}",

booktitle = "ACS Symposium Series",

publisher = "ACS",

}

TY - GEN

T1 - GROUP ISOLATION OF NICKEL AND VANADYL PORPHYRINS FROM CRUDE OIL USING MACROPOROUS SILICA GEL.

AU - Freeman, David H.

AU - Angeles, Rosalie M.

AU - Freeman, Katherine Haines

AU - Hoering, Thomas C.

AU - Flynn, Joseph S.

AU - Lango, Tracie A.

AU - Homonay-Preyer, C. T.

PY - 1987

Y1 - 1987

N2 - An efficient ten-fold concentration of combined nickel and vanadyl porphyrins in crude oil is obtained by liquid column chromatography with disposable macroporous silica gel. The concentrate contains the biomarker metalloporphyrins based on chromatographic and spectral comparisons with etioporphyrin-I standard compounds. The concentrate is free of asphaltene materials that would otherwise cause major chromatographic interference. The procedure, begins with one gram of crude oil sorbed on top of a column containing 5 grams of 500 Angstrom pore size silica gel. The initial elution is with petroleum ether:methylene chloride (97v:3v) to remove saturated and aromatic hydrocarbons. The metalloporphyrins are eluted next with methyl acetate while the remaining asphaltene components are immobilized. In a second step, 100 Angstrom silica gel is used to further separate the metalloporphyrins. The method is rapid and is applicable to processing large numbers of samples.

AB - An efficient ten-fold concentration of combined nickel and vanadyl porphyrins in crude oil is obtained by liquid column chromatography with disposable macroporous silica gel. The concentrate contains the biomarker metalloporphyrins based on chromatographic and spectral comparisons with etioporphyrin-I standard compounds. The concentrate is free of asphaltene materials that would otherwise cause major chromatographic interference. The procedure, begins with one gram of crude oil sorbed on top of a column containing 5 grams of 500 Angstrom pore size silica gel. The initial elution is with petroleum ether:methylene chloride (97v:3v) to remove saturated and aromatic hydrocarbons. The metalloporphyrins are eluted next with methyl acetate while the remaining asphaltene components are immobilized. In a second step, 100 Angstrom silica gel is used to further separate the metalloporphyrins. The method is rapid and is applicable to processing large numbers of samples.

UR - http://www.scopus.com/inward/record.url?scp=0023593245&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023593245&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0023593245

SN - 0841214042

SP - 402

EP - 422

BT - ACS Symposium Series

A2 - Filby, Royston H.

A2 - Branthaver, Jan F.

PB - ACS

ER -

GROUP ISOLATION OF NICKEL AND VANADYL PORPHYRINS FROM CRUDE OIL USING MACROPOROUS SILICA GEL.

Abstract

All Science Journal Classification (ASJC) codes

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