Tags

Type your tag names separated by a space and hit enter

Rapid determination of BTEXS in olives and olive oil by headspace-gas chromatography/mass spectrometry (HS-GC-MS).
Talanta. 2010 Dec 15; 83(2):391-9.T

Abstract

In this work, a straightforward, reliable and effective automated method has been developed for the direct determination of monoaromatic volatile BTEXS group (namely benzene, toluene, ethylbenzene, o-, m- and p-xylenes, and styrene) in olives and olive oil, based on headspace technique. Separation, identification and quantitation were carried out by headspace-gas chromatography-mass spectrometry (HS-GC-MS) in selected ion monitoring (SIM) mode. Sample pretreatment or clean-up were not necessary (besides olives milling) because the olives and olive oil samples are put directly into an HS vial, automatically processed by HS and then injected in the GC-MS for chromatographic analysis. The chemical and instrumental variables were optimized using spiked olives and olive oil samples at 50 μg kg(-1) of each targeted species. The method was validated to ensure the quality of the results. The precision was satisfactory with relative standard deviations (RSD (%)) in the range 1.6-5.2% and 10.3-14.2% for olive oil and olives, respectively. Limits of detection were in the range 0.1-7.4 and 0.4-4.4 μg kg(-1) for olive oil and olives, respectively. Finally, the proposed method was applied to the analysis of real olives and olive oil samples, finding positives of the studied compounds, with overall BTEXS concentration levels in the range 23-332 μg kg(-1) and 4.2-87 μg kg(-1) for olive oil and olives, respectively.

Authors+Show Affiliations

Analytical Chemistry Research Group, Department of Physical and Analytical Chemistry, University of Jaén, Campus Las Lagunillas, Edif. B-3, 23071 Jaén, Spain.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21111151

Citation

Gilbert-López, Bienvenida, et al. "Rapid Determination of BTEXS in Olives and Olive Oil By Headspace-gas Chromatography/mass Spectrometry (HS-GC-MS)." Talanta, vol. 83, no. 2, 2010, pp. 391-9.
Gilbert-López B, Robles-Molina J, García-Reyes JF, et al. Rapid determination of BTEXS in olives and olive oil by headspace-gas chromatography/mass spectrometry (HS-GC-MS). Talanta. 2010;83(2):391-9.
Gilbert-López, B., Robles-Molina, J., García-Reyes, J. F., & Molina-Díaz, A. (2010). Rapid determination of BTEXS in olives and olive oil by headspace-gas chromatography/mass spectrometry (HS-GC-MS). Talanta, 83(2), 391-9. https://doi.org/10.1016/j.talanta.2010.09.052
Gilbert-López B, et al. Rapid Determination of BTEXS in Olives and Olive Oil By Headspace-gas Chromatography/mass Spectrometry (HS-GC-MS). Talanta. 2010 Dec 15;83(2):391-9. PubMed PMID: 21111151.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rapid determination of BTEXS in olives and olive oil by headspace-gas chromatography/mass spectrometry (HS-GC-MS). AU - Gilbert-López,Bienvenida, AU - Robles-Molina,José, AU - García-Reyes,Juan F, AU - Molina-Díaz,Antonio, Y1 - 2010/10/28/ PY - 2010/06/30/received PY - 2010/09/22/revised PY - 2010/09/25/accepted PY - 2010/11/30/entrez PY - 2010/11/30/pubmed PY - 2011/4/13/medline SP - 391 EP - 9 JF - Talanta JO - Talanta VL - 83 IS - 2 N2 - In this work, a straightforward, reliable and effective automated method has been developed for the direct determination of monoaromatic volatile BTEXS group (namely benzene, toluene, ethylbenzene, o-, m- and p-xylenes, and styrene) in olives and olive oil, based on headspace technique. Separation, identification and quantitation were carried out by headspace-gas chromatography-mass spectrometry (HS-GC-MS) in selected ion monitoring (SIM) mode. Sample pretreatment or clean-up were not necessary (besides olives milling) because the olives and olive oil samples are put directly into an HS vial, automatically processed by HS and then injected in the GC-MS for chromatographic analysis. The chemical and instrumental variables were optimized using spiked olives and olive oil samples at 50 μg kg(-1) of each targeted species. The method was validated to ensure the quality of the results. The precision was satisfactory with relative standard deviations (RSD (%)) in the range 1.6-5.2% and 10.3-14.2% for olive oil and olives, respectively. Limits of detection were in the range 0.1-7.4 and 0.4-4.4 μg kg(-1) for olive oil and olives, respectively. Finally, the proposed method was applied to the analysis of real olives and olive oil samples, finding positives of the studied compounds, with overall BTEXS concentration levels in the range 23-332 μg kg(-1) and 4.2-87 μg kg(-1) for olive oil and olives, respectively. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/21111151/Rapid_determination_of_BTEXS_in_olives_and_olive_oil_by_headspace_gas_chromatography/mass_spectrometry__HS_GC_MS__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(10)00766-6 DB - PRIME DP - Unbound Medicine ER -