Limaee, Nargess Yousefi published the artcileSelective Recognition of Herbicides in Water Using a Fluorescent Molecularly Imprinted Polymer Sensor, Category: esters-buliding-blocks, the main research area is dichlorophenoxacetic acid herbicide water fluorescent molecularly imprinted polymer sensor; 1,8-naphthalimide; 2,4-dichlorophenoxyacetic acid; Fluorescent optosensor; Molecularly imprinted polymer.
Fluorescent molecularly imprinted polymer (FMIP) optosensor was utilized for the selective identification of 2,4- dichlorophenoxacetic acid (2,4-D) due to worldwide pollution caused by using herbicides in agricultural industry. In this regards, two derivatives of polymerizable 1,8-naphthalimide namely, 1,8-naphthalimide containing thiourea (NI) and di-Et amine tagged 1,8-naphthalimide (NII) were used as the receptors and 2,4-D was applied as a template. Also, precipitation polymerization was applied to prepare the fluorescent molecularly imprinted polymer (FMIP). The morphol., structural and thermal anal. was carried out using SEM, TEM, EDS, BET, FTIR, DSC and TGA for characterizing the fluorescent optosensor. The adsorption efficiency of FMIP and FNIP was studied using Langmuir, Freundlich, BET and Redlich Peterson isotherms. The results represented that the adsorption of 2,4-D on FMIP and FNIP agreed the Freundlich adsorption isotherm with correlation coefficient of 0.9935 and 0.9801, resp. The prepared sensor was able for the selective determination of 2,4-D salt in the linear range of 5 × 10-7 -1 × 10-3 M with a limit of detection of 16.8 nM. The present study revealed that the FMIP prepared by 1,8-naphthalimide derivative (NI) could potentially recognize the trace concentration of 2,4-D.
Journal of Fluorescence published new progress about Fluorescent biosensors. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Category: esters-buliding-blocks.
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