Development of perceptive multi-analyte sensing platform based on fluorescent CdS QDs for selective and sensitive assay of virulent contaminants in aqueous medium was written by Kaur, Jaspreet;Renu;Komal;Sheoran, Ankush;Nidhi;Kumar, Vinod;Tikoo, Kulbhushan;Singh, Bhupender;Kaushik, Anupama;Singhal, Sonal. And the article was included in Journal of Environmental Chemical Engineering in 2022.Computed Properties of C16H18FN3O3 The following contents are mentioned in the article:
Relentless discharge of organic pollutants into the aqueous realm, including antibiotics, pesticides and nitroarom. explosives, has necessitated world-wide attention for trace level monitoring of organic pollutants to safeguard water resources. This work aims to develop a multi-analyte fluorescent probe based on the biocompatible chitosan capped CdS QDs (CTS-CdS QDs) for the detection of environmentally deleterious organic pollutants. The facile aqueous chem. approach was opted for the fabrication of CTS-CdS QDs and their structural and morphol. features were effectually evinced by Fourier transform IR spectroscopy (FT-IR), powder X-ray diffraction (XRD), XPS and high resolution transmission electron microscopy (HRTEM). The distinct fluorescent characteristics of CTS-CdS QDs showed an unprecedented selectivity towards nitrophenolic explosives (p-nitrophenol (PNP), 2,4-dinitrophenol (2,4-DNP), picric acid (PA)), fluoroquinolones (ofloxacin (OLX), nor-ofloxacin (NOLX), levofloxacin (LVX)) and organochlorine pesticide (dicofol (DCF)) in waste water. Moreover, extremely low limit of detection was attained by CTS-CdS QDs for each detected analyte i.e., PNP (7.6μM), 2,4-DNP (3.5μM), PA (4.2μM), OLX (0.006μM), NOLX (0.026μM), LVX (0.084μM) and DCF (0.24μM). Benefiting the outstanding characters of fluorescent probe in terms of high sensitivity, long fluorescent stability, quick response to targeted analytes, these were also successfully employed for trace level detection of organic pollutants in real samples anal. and excellent recoveries of 90-105% were achieved for spiked water samples. Through this work, green CTS-CdS QDs has been reported first time for the detection of nitrophenolic explosives, fluoroquinolone antibiotics and DCF pesticide in aqueous samples using a single probe. This study involved multiple reactions and reactants, such as 1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7Computed Properties of C16H18FN3O3).
1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (cas: 70458-96-7) belongs to piperazine derivatives. Piperazine causes primary dermal irritation and skin burns at high concentrations. Piperazine also causes eye irritation in humans. Although many piperazine derivatives occur naturally, piperazine itself can be synthesized by reacting alcoholic ammonia with 1,2-dichloroethane, by the action of sodium and ethylene glycol on ethylene diamine hydrochloride, or by reduction of pyrazine with sodium in ethanol.Computed Properties of C16H18FN3O3
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics