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Hrouzková S, Pócsová T, Lelkesová T, Ulbrich P. Determination of Ethylene Glycol Dinitrate in Environmental and Forensic Water Samples Using Microextraction by Packed Sorbent Followed by Gas Chromatography. SEPARATIONS 2023. [DOI: 10.3390/separations10040227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Ethylene glycol dinitrate (EGDN) is a liquid nitrate ester, a secondary explosive. In the past, it was used as an explosive ingredient in dynamite along with nitroglycerine. Due to its various applications, the reliable detection of EGDN in the environment is a key issue for both forensic and environmental applications. In these areas, sensitive and reliable methods for determining the concentration of nitro compounds are needed. Microextraction by packed sorbent (MEPS) is an innovative approach to green technology in the sample preparation field. Compared to conventional solid-phase extraction (SPE), MEPS uses a smaller sample volume and can be easily combined with various chromatographic techniques. An important benefit is the reduction of sorbent amount and up to 100-times repeatable use compared to disposable SPE columns, thus reducing the costs of analysis as well as waste production. Optimal extraction parameters for isolating EGDN from water, e.g., 30 µL of toluene as extraction agent, working in one cycle and in draw/discard mode, were selected. Method validation was performed, obtaining a limit of detection and a limit of quantification of 0.45 pg/μL and 1.34 pg/μL, respectively. Accuracy in terms of recovery rates was evaluated over a wide concentration range, obtaining values from 83.7 to 90.0%. The satisfactory linearity expressed by the coefficient of determination was 0.9914. A matrix factor of −9.3% indicates a weak matrix effect. The application to real environmental water samples and a forensic post-blast wash water sample was realized. EGDN detection in the post-blast samples provides valuable information for forensic technicians.
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Dispersive liquid-liquid microextraction followed by gas chromatography–mass spectrometry for the determination of pesticide residues in nutraceutical drops. J Chromatogr A 2018; 1570:126-134. [DOI: 10.1016/j.chroma.2018.07.072] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/26/2018] [Accepted: 07/26/2018] [Indexed: 12/20/2022]
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Płotka-Wasylka J, Marć M, Szczepańska N, Namieśnik J. New Polymeric Materials for Solid Phase Extraction. Crit Rev Anal Chem 2017; 47:373-383. [DOI: 10.1080/10408347.2017.1298987] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Justyna Płotka-Wasylka
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Mariusz Marć
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Natalia Szczepańska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Jacek Namieśnik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
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Molecularly imprinted polymers for bioanalytical sample preparation. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1043:107-121. [DOI: 10.1016/j.jchromb.2016.09.045] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 01/03/2023]
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Determination of Pesticides in Wheat Flour Using Microextraction on Packed Sorbent Coupled to Ultra-High Performance Liquid Chromatography and Tandem Mass Spectrometry. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0720-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ocaña-González JA, Fernández-Torres R, Bello-López MÁ, Ramos-Payán M. New developments in microextraction techniques in bioanalysis. A review. Anal Chim Acta 2016; 905:8-23. [DOI: 10.1016/j.aca.2015.10.041] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/08/2015] [Accepted: 10/28/2015] [Indexed: 12/21/2022]
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Tournier M, Pouech C, Quignot N, Lafay F, Wiest L, Lemazurier E, Cren-Olivé C, Vulliet E. Determination of endocrine disruptors and endogenic androgens and estrogens in rat serum by high-performance liquid chromatography-tandem mass spectrometry. Steroids 2015; 104:252-62. [PMID: 26476180 DOI: 10.1016/j.steroids.2015.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 09/29/2015] [Accepted: 10/09/2015] [Indexed: 01/11/2023]
Abstract
To simultaneously measure some targeted endocrine disruptors and several forms of sex hormones in rat serum, an accurate analytical procedure was developed. First, a comparison between a polymeric-based solid-phase extraction (SPE) and a micro-extraction by packed sorbent was performed to choose the optimal method to extract and concentrate the analytes: bisphenol A, atrazine, vinclozolin metabolite, testosterone, androstenedione, estrone, estradiol, estrone-sulfate and glucuronide and estradiol-sulfate and glucuronide. The analyses were then performed by high-performance liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) with electrospray ionisation in positive and negative modes. The protocol based on SPE was validated using the ICH/2005 guidelines. The validation demonstrated good performance in terms of linearity (R(2)>0.99), recovery (71-90%) and repeatability (relative standard deviation: 1-18%). The method was sensitive with LOQ comprised between 0.1 and 0.4 ng/ml for androgens and between 0.098 and 10.2 ng/ml for estrogens. The results obtained on the serum of rats exposed to the targeted endocrine disruptors showed the suitability of this analytical strategy.
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Affiliation(s)
- M Tournier
- Université de Lyon, Institut des Sciences Analytiques, UMR5280-CNRS, Université de Lyon, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - C Pouech
- Université de Lyon, Institut des Sciences Analytiques, UMR5280-CNRS, Université de Lyon, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - N Quignot
- Experimental Toxicology Unit, INERIS, Parc Technologique ALATA, F-60550 Verneuil-en-Halatte, France
| | - F Lafay
- Université de Lyon, Institut des Sciences Analytiques, UMR5280-CNRS, Université de Lyon, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - L Wiest
- Université de Lyon, Institut des Sciences Analytiques, UMR5280-CNRS, Université de Lyon, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - E Lemazurier
- Experimental Toxicology Unit, INERIS, Parc Technologique ALATA, F-60550 Verneuil-en-Halatte, France
| | - C Cren-Olivé
- Université de Lyon, Institut des Sciences Analytiques, UMR5280-CNRS, Université de Lyon, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - E Vulliet
- Université de Lyon, Institut des Sciences Analytiques, UMR5280-CNRS, Université de Lyon, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France.
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On-line coupling of Micro-Extraction by Packed Sorbent with Sequential Injection Chromatography system for direct extraction and determination of betaxolol in human urine. Talanta 2015; 143:132-137. [DOI: 10.1016/j.talanta.2015.05.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/19/2015] [Accepted: 05/21/2015] [Indexed: 12/11/2022]
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