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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Al-Bahadly, I. H.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2016Improved detection limits for phthalates by selective solid-phase micro-extractioncitations
- 2015Rapid and molecular selective electrochemical sensing of phthalates in aqueous solutioncitations
- 2014Introducing molecular selectivity in rapid impedimetric sensing of phthalatescitations
- 2013MEMS based impedimetric sensing of phthalatescitations
- 2013Ovarian Hormone Estrone Glucuronide (E1G) quantification-impedimetric electrochemical spectroscopy approachcitations
- 2013Technique for rapid detection of phthalates in water and beveragescitations
- 2013Electrochemical impedance spectroscopy based MEMS sensors for phthalates detection in water and juicescitations
- 2012Sensor and instrumentation for progesterone detectioncitations
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document
Improved detection limits for phthalates by selective solid-phase micro-extraction
Abstract
<p>Presented research reports on an improved method and enhanced limits of detection for phthalates; a hazardous additive used in the production of plastics by solid-phase micro-extraction (SPME) polymer in comparison to molecularly imprinted solid-phase extraction (MISPE) polymer. The polymers were functionalized on an interdigital capacitive sensor for selective binding of phthalate molecules from a complex mixture of chemicals. Both polymers owned predetermined selectivity by formation of valuable molecular recognition sites for Bis (2-ethylhexyl) phthalate (DEHP). Polymers were immobilized on planar electrochemical sensor fabricated on a single crystal silicon substrate with 500 nm sputtered gold electrodes fabricated using MEMS fabrication techniques. Impedance spectra were obtained using electrochemical impedance spectroscopy (EIS) to determine sample conductance for evaluation of phthalate concentration in the spiked sample solutions with various phthalate concentrations. Experimental results revealed that the ability of SPME polymer to adsorb target molecules on the sensing surface is better than that of MISPE polymer for phthalates in the sensing system. Testing the extracted samples using high performance liquid chromatography with photodiode array detectors validated the results.</p>