scholarly journals CONSTRUCTION OF A NEW ELECTROCHEMICAL SENSOR BASED ON A NEW MOLECULARLY IMPRINTED POLYMERS(MIPS) FOR HIGHLY SELECTIVE AND SENSITIVE DETERMINATION OF CLEBOPRIDE (CBD) IN PHARMACEUTICAL COMMERCIAL SAMPLES

2021 ◽  
Vol 52 (2) ◽  
pp. 367-376
Author(s):  
Y. K. Al-Bayati

Clebopride (CBD) selective molecularly imprinted polymers(MIPs) were based on ion-pair by prepared four polymers(MIPs) using CBD as the template a well as (Acryl amide) (AAM), 2-Acrylamido-2-Methyl-1-Propane sulphonic Acid (2-AAMMPSA as monomer, used N,N-ethylenebismethacrylamide (EBMAA) ,ethylene glycol dimethacrylate ethylene glycol(EGDMAC), N, N-methylene bisacrylamide (NNMBAAM)) as cross linker and used benzoyl peroxide as initiator . NIPs prepared by using the same composition of MIPs except the template (CBD). The MIPs were prepared using variation  ratio of monomer and cross linker .These MIPs applicate as solid phase extraction for determination CBD in pharmaceutical preparation used UV as detector .the results gave good response, where the reconstruction percentage (Rec%) value of CBD drug took the range (99- 101% ), and the relative standard deviation (RSD%) value took the range (0.27% - 0.93 %) for standard solution and Rec% took values of (98- 99) %, and RSD% took values of (0.86 – 1.62) % of CBD drug for the Clebopride pharmaceutical.

2020 ◽  
Vol 51 (1) ◽  
Author(s):  
Al-Abbasi & et al.

Betamethasone sodium phosphate (BMSP)  selective molecularly imprinted polymers(MIPs) were based on ion-pair by prepared four polymers(MIPs) using BMSP as the template a well as (Acryl amide) (AAM), 2-Acrylamido-2-Methyl-1-Propane sulphonic Acid (2-AAMMPSA as monomer, used N,N-ethylenebismethacrylamide (EBMAA) ,ethylene glycol dimethacrylate ethylene glycol(EGDMAC), N, N-methylene bisacrylamide (NNMBAAM)) as cross linker and used benzoyl peroxide as initiator . NIPs prepared by using the same composition of MIPs except the template (BMSP). The MIPs were prepared using variation  ratio of monomer and cross linker .These MIPs applicate as solid phase extraction for determination    BMSP in pharmaceutical preparation used UV as detector .the results gave good response, where the reconstruction percentage (Rec%) value of BMSP drug took the range (99.058149 % - 101.887004 %), and the relative standard deviation (RSD%) value took the range (0.224149 % - 0.743651 %) for standard solution and Rec% took values of (98.400035 - 99.404218) %, and RSD% took values of (0.572589 - 1.012777) % of BMSP drug for the Betamethasone sodium phosphate pharmaceutical.


2014 ◽  
Vol 6 (16) ◽  
pp. 6397-6406 ◽  
Author(s):  
Xiaoyan Li ◽  
Mei Li ◽  
Junjie Li ◽  
Fuhou Lei ◽  
Xiaomeng Su ◽  
...  

A novel sample clean-up technique, i.e., molecularly imprinted solid-phase extraction (MISPE) combined with HPLC, was developed and validated for the selective extraction and determination of basic orange II in foods.


Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 131 ◽  
Author(s):  
Xuqin Song ◽  
Esther Turiel ◽  
Limin He ◽  
Antonio Martín-Esteban

The emergence of colistin resistance gen has aroused public concern. It is significant to assess the concentrations of polymyxins residues in aquatic environment since resistant bacteria carrying colistin resistance gen are frequently isolated from wastewater; surface water and ground water. However; no literature on the determination of polymyxins in water is available; probably due to the absence of an efficient extraction method. Accordingly; molecularly imprinted polymers were synthesized by precipitation polymerization with colistin as the template. The polymers were successfully used as sorbents for the determination of polymyxins from water based on molecularly imprinted solid-phase extraction and high-performance liquid chromatography–ultraviolet detection. The molecularly imprinted cartridge showed excellent affinity and cross-reactivity to analytes in aqueous media. Recoveries obtained from water samples were between 65.9% and 90.1%, with relative standard deviations lower than 10.2%. Limits of detection were between 1.0 and 2.0 μg L−1 concentration levels. Compared with C18 cartridge; the molecularly imprinted cartridge could remove more interference from co-extracted matrices. This method is practical for the routine monitoring of polymyxin residues in environmental water; which will benefit studies on drug-resistance and occurrence of polymyxins in the environment.


2017 ◽  
Vol 9 (17) ◽  
pp. 2585-2589 ◽  
Author(s):  
Jieping Luo ◽  
Ning Chen ◽  
Zaiyue Yang ◽  
Jiyong Han ◽  
Wanying Zhu ◽  
...  

A reliable pretreatment method of magnetic molecularly imprinted polymers/dispersive solid-phase extraction was developed for selectivity and enrichment of targets.


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