Sensitivity Study of Naphthenic Acids from Flow Assurance Deposits Characterized by Low-Resolution Mass Spectrometry
| Autor: | Gillian Barnes Thomson, Andrew G. Shepherd, Kenneth Stuart Sorbie, Robin E. Westacott |
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| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Electrospray Chemical ionization Chromatography Chemistry General Chemical Engineering Carboxylic acid Analytical chemistry Energy Engineering and Power Technology Atmospheric-pressure chemical ionization Fast atom bombardment Mass spectrometry chemistry.chemical_compound Fuel Technology Ionization Naphthenic acid |
| Zdroj: | Energy & Fuels. 24:4387-4395 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef100574m |
| Popis: | Soaps constitute one of the more recent challenges in exploration and production flow assurance. In this work, the naphthenic acids from a field soap deposit were extracted and analyzed using low-resolution mass spectrometry, with the aim of examining the effects of ionization sources, operational settings, and the impact of solvents. Results suggest that fast atom bombardment (FAB), atmospheric pressure chemical ionization (APCI), and electrospray (ES) ionization sources have different effects on the samples and lead to different spectra. FAB led to the highest signal for the so-called ARN acids, as well as a range of signals for monocarboxylic acids. The signals for ARN acids obtained using both the ES and APCI sources were similar to each other in terms of intensity. Nevertheless, because of the differences in monocarboxylic acid signals between these sources, the spectrum obtained with APCI, most likely, suggests favorable ionization of ARN acids. This was supported by the analysis of the spectra of a... |
| Databáze: | OpenAIRE |
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