A study of thin film solid phase microextraction methods for analysis of fluorinated benzoic acids in seawater

Date

2016-03-04

Author

Boyacı, Ezel
Viteri, C. Ricardo
Pawliszyn, Janusz

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

183
views

0
downloads

Fluorinated benzoic acids (FBAs) are frequently used as tracers by the oil industry to characterize petroleum reservoirs. The demand for fast, reliable, robust, and sensitive approaches to separate and quantify FBAs in produced water, both in laboratory and field conditions, has not been yet fully satisfied. In this study, for the first time, thin film solid phase microextraction (TF-SPME) is proposed as a versatile sample preparation tool for the determination of FBAs in produced water by pursing two different approaches. First, an automated high throughput TF-SPME method using solvent desorption for fast and simultaneous preparation of multiple samples prior to liquid chromatographic separation and high resolution mass spectrometric detection (LC-MS) of FBAs was demonstrated for routine laboratory analysis. This method was optimized in terms of extraction phase chemistry, sample pH and ionic strength, extraction/desorption times using two representative FBAs (4-FBA and 2,3,4,5-tetra FBA). It incorporates a relatively simple sample pretreatment involving pH adjustment prior to the TF-SPME, and obtained limits of quantification (LOQ) are at the 1.0 ng mL(-1) level. Second, the applicability of TF-SPME for fast mass spectrometric (MS) determination of FBAs with omission of derivatization and gas chromatographic (GC) separation was proven. This second method consists of manual extractions of analytes from seawater samples with a thermally stable TF-SPME membrane and direct thermal desorption of the extracted FBAs to a MS via a thermal desorption unit (TDU). It was demonstrated that the TF-SPME extracts and thermally releases analytes quantitatively and with good reproducibility. This approach opens up the possibility for on-site measurements with portable analyzers.

Subject Keywords

Fluorinated benzoic acids (FBAs), LC-MS analysis, Thin film solid phase microextraction (TF-SPME), High throughput analysis, Sample preparation

URI

https://hdl.handle.net/11511/34757

Journal

JOURNAL OF CHROMATOGRAPHY A

DOI

https://doi.org/10.1016/j.chroma.2016.01.071

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

An Experimental study on the effects of different chloride sources on the properties of API Class G cement Ramazanoğlu, Özge; Yaman, İsmail Özgür; Akın, Serhat; Department of Cement Engineering (2014) In the petroleum industry, oil well cements are used in the form of slurries during the construction of oil or natural gas wells. Preserving the integrity of the well and the casing, providing zonal isolation are some of the uses of these special cements. Oil well cement slurries used in the petroleum industry are subjected to different exposure conditions than ordinary Portland cement slurries used in the construction industry. Therefore, oil well cements are required to possess different engineering prope...
The application of artificial neural networks for the prediction of water quality of polluted aquifer Gumrah, F; Oz, B; Guler, B; Evin, S (2000-04-01) From hydrocarbon reservoirs, beside of oil and natural gas, the brine is also produced as a waste material, which may be discharged at the surface or re-injected into the ground. When the wastewater is injected into the ground, it may be mixed with fresh water source due to to several reasons. Forecasting the pollutant concentrations by knowing the historical data at several locations on a field has a great importance to take the necessary precautions before the undesired situations are happened.
Investigation on indigenous bacteria for individual BTEX degradation potentials and relative pathways used Yavaş, Alper; İçgen, Bülent; Parlaktuna, Mahmut; Department of Biotechnology (2018) Monoaromatic hydrocarbons including benzene, toluene, ethylbenzene and xylene collectively called as BTEX are found in the composition of crude oil and gasoline as an additive and thought to be the most serious contaminants of soil and groundwater. It is expected that indigenous bacteria isolated from petroleum hydrocarbon contaminated sites probably have degradation potential for the BTEX compounds. In this study, out of 22, 19 bacterial strains were selected as potential degraders for at least one of the ...
An Experimental study on steam distillation of heavy oils during thermal recovery Tavakkoli Osgouel, Yashar; Parlaktuna, Mahmut; Department of Petroleum and Natural Gas Engineering (2013) Thermal recovery methods are frequently used to enhance the production of heavy crude oils. Steam-based processes are the most economically popular and effective methods for heavy oil recovery for several decades. In general, there are various mechanisms over steam injection to enhance and have additional oil recovery. However, among these mechanisms, steam distillation plays pivotal role in the recovery of crude oil during thermal recovery process. In this study, an experimental investigation was carried o...
A density functional theory study of propylene epoxidation mechanism on Ag2O(001) surface Tezsevin, I.; van Santen, R. A.; Önal, Işık (2018-11-07) Propylene oxide (PO) is one of the 50 most produced chemicals according to the production volume. Environmental and economic drawbacks of conventional PO production processes necessitate new production methods. Among the new production alternatives, direct epoxidation of propylene to propylene oxide by molecular oxygen is a highly desired method and seen as the holy grail of propylene epoxidation studies. In this study, the propylene epoxidation mechanism on an Ag2O(001) surface is investigated computationa...

Citation Formats

E. Boyacı, C. R. Viteri, and J. Pawliszyn, “A study of thin film solid phase microextraction methods for analysis of fluorinated benzoic acids in seawater,” JOURNAL OF CHROMATOGRAPHY A, pp. 51–58, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34757.