(1996) Carboxyl group protonation upon reduction of the Paracoccus denitriflcans cytochrom c oxidase: direct evidence by FTIR spectroscopy, FEBS Lett . 385 , 53–57.Hellwig, P., Rost, B., Kaiser, U., Ostermeier, C., Michel, H., and Ma¨ntele, W. (1996) Carboxyl group protonation ...
of degradation of implants made of poly(ethylene terephthalate). Since poly(ethylene terephthalate) contains carboxylic acid end groups, a decrease in molecular weight during implantation (i.e. degradation) should be accompanied by an increase incarboxyl groupcontent, which can be measured by FTIR.9...
(TEPA)-modified polyamidoamine dendrimer generation 4.5 (PDG4.5), and characterized it using IH nuclear magnetic resonance (NMR), C-13 NMR, correlation spectroscopy (COSY), heteronuclear single-quantum correlation spectroscopy (HSQC), and Fourier transform infrared (FTIR) spectroscopy followed by ...
The pore structure was characterized by FTIR and Raman spectrometer, SEM, Brunauer–Emmet–Teller measurement, DSC and TGA. The results show that the 3DOM SiO 2 –COOH had a uniform interconnected macroporous structure, a high porosity and a high mechanical strength. Batch adsorption tests towards...
The carboxyl group is one of the most abundant and important functional groups in natural organic molecules (NOM). Its structural environment determines its reactivity and stability and has been examined previously using Fourier-transform infrared spectroscopy (FTIR), specifically the asymmetric stretch of...
(PPX-carb) was prepared by CVD polymerization in present work.The chemical structure of the resulted polymer was confirmed by FTIR and elemental analysis.It is indicated that PPX-carb membrane has good solvent resistant and high chemical oxidation resistant.Thermogravimetric analysis(TGA),differential ...
group P212121. The S1-N1 bond length of 1.628 (2) Å was a strong indication of the formation of the title compound. The absence of characteristic downfield1H NMR peak of pyrrolidine ring and the presence of S–N stretching vibration at 857.82 cm−1on the FTIR are strong indications ...
Study on the confining experiment of carboxyl group in humic acid; 腐植酸中羧基官能团的封闭研究 3. FTIR showed that MWNTs graft no carboxyl groups by radition in water. 红外光谱分析(FTIR)表明,水中辐射没有在碳纳米管表面接枝上羧基;酸中辐射和干态辐射后用混酸处理都可以使碳纳米管接枝上羧基,但...
FTIR spectrophotometry, kinetics and adsorption isotherms modeling, ion exchange, and EDX analysis for understanding the mechanism of cd(2+) and Pb(2+) removal by mango peel waste J. Hazard. Mater., 164 (1) (2009), pp. 161-171 View PDFView articleView in ScopusGoogle Scholar [29] K. ...
Fourier-transform infrared (FTIR) spectroscopy featured strong bands at 1614, 1552, and 1230 cm−1 for TpPa-COOH (Fig. 2A), which were assigned to the stretching vibrations of CO, CC, and C−N of the keto form of Tp, indicating the formation of the β-keto-enamine linkage [42]...