Preparation of electrospun polyacrylonitrile/Ni-MOF-74 nanofibers for extraction of atenolol and captopril prior to HPLC-DAD

Adsorption of Carbon Dioxide with Ni-MOF-74 and MWCNT Incorporated Poly Acrylonitrile Nanofibers

“…The FTIR spectra of all the samples including Ni-MOF-74 powder, MWCNT, PAN/MWCNT, PAN/MOF, and PAN/MWCNT/MOF nanofibers are shown in Figure 13 . In the Ni-MOF-74 spectrum, the characteristic peaks at around 1558, 1419 cm −1 are ascribed to stretching vibrations of symmetric and asymmetric carboxylate groups (–COO–) [ 59 ]. Moreover, the peaks are located at 920, 850, and 3415 cm −1 , which are attributed to stretching vibration of Ni–O, C–H, and –OH bonds, respectively [ 58 ].…”

Investigation of five metal–organic frameworks as sorbents in the syringe filter-SPE method for determination of metronidazole and cephalexin in water samples

“…6). The matrix effect (ME%) was calculated based on the analytical signals obtained in non-spiked and spiked samples using the following equation: 36 where A s , A n , and A w correspond to the peak area of the analyte in the spiked samples, non-spiked samples, and spiked ultra-pure water, respectively. As shown in Table 2, no significant matrix effect was observed in the analysis of target drugs in real water samples.…”

Developing a cube-like nanocomposite integrated into a polymer network as a highly porous and effective electrospun nanofiber for extracting trace quantities of opioid and analgesic drugs in biological fluids

“…11 Consequently, micro-solid phase extractionpipette tip (PT-SPE) has emerged as a modern, cost-effective, rapid, effective, and environmentally friendly method for preconcentrating diverse analytes including drugs, peptides, and proteins. [12][13][14] In the PT-SPE technique, the amount of adsorbents applied in the pipette tip and the use of harmful organic solvents are significantly reduced. 15,16 However, despite the above-mentioned features, the PT-SPE technique has little capacity for extraction.…”