Applicability of an eco-friendly deep eutectic solvent loaded onto magnetic graphene oxide to preconcentrate trace amount of indigotin blue dye was written by Hejazi Khah, Melika;Jamshidi, Parastoo;Shemirani, Farzaneh. And the article was included in Journal of Molecular Liquids in 2021.Related Products of 75-57-0 The following contents are mentioned in the article:
This article investigates the applicability of an environmentally friendly and energy efficient deep eutectic solvents (DES) for indigotin blue dye (IBD) preconcentration prior to its quantification by a UV-Visible spectrophotometer. The adsorbent (UT-mGO) is made of Fe3O4, graphene oxide, urea and tetramethylammonium chloride. It was prepared via dispersing magnetic graphene oxide in a DES. The adsorbent was prepared fast and easy, without consumption of dangerous reagents. The X-ray diffraction patterns show pure structures of components. The FT-IR spectra show strong interaction between DES and mGO. In addition, a scanning electron microscope confirms that DES covered the surface of mGO homogeneously. Magnetic amount and surface property were characterized by an alternating gradient force magnetometer and Brunauer-Emmett-Teller, resp. High surface area and enough magnetic property, as well as π-π and electrostatic interactions among analyte and adsorbent propose UT-mGO as a qualified candidate to preconc. IBD. Effective parameters including pH, adsorbent amount, adsorption time, eluent and desorption time were optimized. Under the optimized conditions, the method has the following figures of merit: (a) limit of detection of 1.5 × 10-6 g L-1, (b) relative standard deviation (n = 7) of 3.49%, (c) preconcentration factor of 50 and (d) linearity of dynamic range of 1.0 × 10-5 to 45 × 10-5 g L-1. The adsorbent is not reusable but durable in six months. Isotherm model of Langmuir and kinetic model of pseudo-second-order fitted for the system. ΔH (-13.2 × 103 J mol-1), ΔS (5.38 J K-1 mol-1) and ΔG (-3.69 × 103 – +10.9 × 103 J mol-1) were calculated as thermodn. parameters. The method was successfully applied for IBD preconcentration from three samples of fruit juices and three samples of jelly powders. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Related Products of 75-57-0).
Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Related Products of 75-57-0
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics