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Application of normal-phase high-performance liquid chromatography followed by gas chromatography for analytics of diesel fuel additives
Abstract
The paper presents the results of investigations on new procedures of determination of selected cleaning additives in diesel fuel. Two procedures: one-step analysis using gas chromatography with flame ionization detection (GC-FID) or mass spectrometry (GC-MS) and a two-step procedure in which normal-phase high-performance liquid chromatography (NP-HPLC) was used for preliminary separation of the additives, were compared. The additive fraction was collected using either simple elution or eluent backflush. Final determinations were performed by GC-FID and GC-MS. The studies revealed that it was impossible to determine the investigated analytes by one-step procedures, i.e. by using solely HPLC or GC. On the other hand, the use of a two-step procedure ensures reproducible results of determinations, and the limits of quantitation are, depending on the method of fraction collection by HPLC, from 1.4–2.2 ppm (GC-MS in SIM mode) to 9.6–24.0 ppm (GC-FID). Precision and accuracy of the developed procedures are compared, and possible determination errors and shortcomings discussed.
Authors (4)
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Andrzej Przyjazny
- Kettering University Chemistry
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
no. 405,
edition 18,
pages 6095 - 6103,
ISSN: 1618-2642 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Boczkaj G., Jaszczołt M., Przyjazny A., Kamiński M.: Application of normal-phase high-performance liquid chromatography followed by gas chromatography for analytics of diesel fuel additives// ANALYTICAL AND BIOANALYTICAL CHEMISTRY. -Vol. 405, iss. 18 (2013), s.6095-6103
- Verified by:
- Gdańsk University of Technology
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