Development of an optrode membrane for the determination of picric acid based on fluorescence energy transfer
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Electrospun nanofiber sheets mixed with a novel triphenylamine-pyrenyl salicylic acid fluorophore for the selective detection of picric acid
2023, Journal of Photochemistry and Photobiology A: ChemistryCitation Excerpt :It is more powerful than trinitrotoluene (TNT) and other nitroaromatic compounds (NACs) [4–5]. Consequently, it is frequently used in the explosives, plasticizers, dye, and pharmaceutical industries [6–8]. In addition, PA is a significant contaminant of groundwater due to its high solubility in water [9–10].
Removal, preconcentration and spectrophotometric determination of picric acid in water samples using modified magnetic iron oxide nanoparticles as an efficient adsorbent
2012, Materials Science and Engineering CCitation Excerpt :Phenolic compounds are common by-products of the coal, tar, plastics, leather, paint, pharmaceutical and steel industries and are therefore frequently found in water reservoirs, rivers and lakes [6]. Picric acid was determined by different methods, such as follows: follows: liquid chromatography–mass spectrometry [7], spectrophotometry [8–13], classical chemical methods [14], fluorometry [15–18], polarography [19], gas chromatography [20], ion-selective electrodes [21–27]. These methods require expensive instrumentation, need extensive pretreatment of the sample solution.
An optical sensor based on covalent immobilization of 1-aminopyrene using Au nanoparticles as bridges and carriers
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2005, Sensors and Actuators, B: ChemicalAn anthracene/porphyrin dimer fluorescence energy transfer sensing system for picric acid
2004, TalantaCitation Excerpt :Fluorescent sensors based on the phenomenon of energy transfer demonstrated some advantages over the conventional sensors due to the improved sensitivity and the large Stokes’ shifts which facilitate the separation of the fluorescence signal from the excitation radiation. Zeng et al. [15] demonstrated the feasibility of preparing a fluorescent sensor based on the energy transfer by using fluoranthene and fluorescein octadecyl ether as the donor–acceptor pair. This sensor had to be used in the concentrated acid medium, which might be inconvenient for the treatment of some samples.
Optical membrane for o-nitroaniline based on fluorescence energy transfer between a small molecule and a conjugated polymer
2003, Analytica Chimica ActaCitation Excerpt :The optical membrane based on the FET is characterized by high sensitivity and large Stokes’ shifts [4] (which facilities the separation of the fluorescence signal from the excitation radiation). So considerable relative optical membrane work has been carried out to date [3–6]. But to the best of our knowledge, the fluorescence energy transfer being used in those optical membranes took place between two kinds of small molecules.
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