Applicability of reversed-phase liquid chromatography for the speciation of vanadyl and nickel metalloporphyrins in oil extracts

Waal, W.A.J. De; Heemstra, S.; Kraak, J.C.; Jonker, R.J.

doi:10.1007/bf02270446

Cited by 11 publications

(5 citation statements)

References 21 publications

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“…xylene or THF). 64 The resolution can be increased by combining two columns in series. They can have the same stationary phase, e.g.…”

Section: Molecular-size Fractionation By Size-exclusion Chromatographymentioning

confidence: 99%

“…However the use of porous graphite stationary phase and elution with non-polar solvents was evoked to improve the separation of some metalloporphyrins. 64 Attempts were made for the chromatography of raw methanol extracts of crude oils. 29 The chromatograms showed poor resolution.…”

Section: Molecular-size Fractionation By Size-exclusion Chromatographymentioning

confidence: 99%

“…24,27,52 Under these conditions, reversed-phase chromatography is particularly useful for the separation of porphyrins by retention time matching with standards and UV spectrophotometry detection. The porphyrin identification was usually achieved by mass spectrometry: EI MS 61 or APCI MS. 62 The use of metal specific detector for the analysis of nickel or vanadium porphyrins has been reported, GF-AAS was used for the analysis of porphyrin fractions 29 and ICP-AES was used on line 64 coupled to RP-HPLC column. The analytical methods reported in the literature are summarised in Table 2.…”

Section: Molecular-size Fractionation By Size-exclusion Chromatographymentioning

confidence: 99%

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Element speciation analysis of petroleum and related materials

Caumette

Lienemann²,

Merdrignac³

et al. 2009

J. Anal. At. Spectrom.

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“…xylene or THF). 64 The resolution can be increased by combining two columns in series. They can have the same stationary phase, e.g.…”

Section: Molecular-size Fractionation By Size-exclusion Chromatographymentioning

confidence: 99%

Section: Molecular-size Fractionation By Size-exclusion Chromatographymentioning

confidence: 99%

Section: Molecular-size Fractionation By Size-exclusion Chromatographymentioning

confidence: 99%

See 1 more Smart Citation

Element speciation analysis of petroleum and related materials

Caumette

Lienemann²,

Merdrignac³

et al. 2009

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

“…Coupled to gel permeation chromatography (GPC) with ICP-MS detection, NP-HPLC was found to provide additional information about the speciation of nickel and vanadium-containing compounds in petroleum products. 78 However, RP-HPLC is carried out for the separation of porphyrins, 71 which are then detected on-line by ICP atomic emission spectroscopy (ICP-AES) 79 or graphite furnace atomic absorption. 80 TLC is another type of LC that is particularly useful for petroleum analysis.…”

Section: Sample Fractionation and Hyphenated Techniquesmentioning

confidence: 99%

Molecular Fingerprints and Speciation of Crude Oils and Heavy Fractions Revealed by Molecular and Elemental Mass Spectrometry: Keystone between Petroleomics, Metallopetroleomics, and Petrointeractomics

et al. 2018

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Petroleum and its fractions are some of the most complex mixtures found in analytical chemistry. Mass spectrometry currently plays an increasing role in the characterization of these matrices. Since the last review on this topic in 2011, several new approaches have been introduced, and these approaches increasingly use sample fractionation by extraction and/or liquid chromatographic techniques. This review considers molecular mass spectrometry and inorganic mass spectrometry. The combination of both techniques paves the way to "petrointeractomic" approaches.

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“…Depending on the origin of the oil, the concentration of vanadium and nickel may range from 8-200 ng g" 1 and 4-150 /*g g" 1 respectively (De Waal et al, 1990). In addition, copper and, more recently, gallium have also been found complexed to petroporphyrins (Palmer & Baker, 1978;Bonnett & Czeshowski, 1980).…”

Section: Petroporphyrinsmentioning

confidence: 99%

The occurrence and roles of porphyrins in the environment: possible implications for bioremediation

Lesage

Durham

1993

Hydrological Sciences Journal

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Porphyrins are the molecules which are at the heart of most biochemical reactions involved in bioremediation. This review paper discusses the chemical structures, the biosynthetic pathways and the occurrence of porphyrins in the environment. The parallel between the mammalian and bacterial cytochrome P-450 enzyme systems and the similarity of the reactions at the molecular level is brought to the attention of the reader. Experiments where porphyrins and corrinoids are used as catalysts in the absence of the enzymes or the bacterial cells are opening the field of biochemical remediation, somewhere midway between biological and abiotic reactions. La présence et le rôle des porphyrines dans l'environnement: implications possibles pour la biorestaurationRésumé Les porphyrines sont les molécules qui se retrouvent au coeur de la plupart des réactions biochimiques impliquées dans la biorestauration. Cet article passe en revue les structures chimiques, les chaînes de biosynthèse et la présence des porphyrines dans l'environnement. On dresse un parallèle entre les systèmes enzymatiques cytochromes P-450 d'origine bactérienne et mammifère et la similitude de leurs réactions au niveau moléculaire est soulignée. Des essais où les porphyrines et les corrinoïdes sont utilisées comme catalyseurs en l'absence d'enzymes ou de cellules bactériennes ouvrent la voie à la restauration biochimique, quelque part entre les réactions biologiques et abiotiques.

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Applicability of reversed-phase liquid chromatography for the speciation of vanadyl and nickel metalloporphyrins in oil extracts

Cited by 11 publications

References 21 publications

Element speciation analysis of petroleum and related materials

Element speciation analysis of petroleum and related materials

Molecular Fingerprints and Speciation of Crude Oils and Heavy Fractions Revealed by Molecular and Elemental Mass Spectrometry: Keystone between Petroleomics, Metallopetroleomics, and Petrointeractomics

The occurrence and roles of porphyrins in the environment: possible implications for bioremediation

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