http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Suba Lakshmi Madaswamy,Saikh Mohammad Wabaidur,Mohammad Rizwan Khan,이수출,Ragupathy Dhanusuraman 한국고분자학회 2021 Macromolecular Research Vol.29 No.6
In this work, a metal free polyaniline nanorod (PANI-NR) with graphitic carbon nitride (GCN) nanocomposite has been synthesized by solar irradiation approach an acidic medium without the assistance of any surfactant and template. As synthesized PANI-NR/GCN nanocomposite was characterized by morphology studies, which found that the average diameter of the PANI-NR was 500 to 600 nm and the length of the nanorod range from 3 to 3.5 μm where GCN randomly dispersed on the surface of PANI-NR. The elemental composition, structural and vibrational spectra of PANI-NR/GCN are observed through EDX, Mapping, XRD, and FT-IR studies. Subsequently, the synthesized PANI-NR/GCN nanocomposite was used as an electrocatalyst, which was characterized through cyclic voltammetry, impedance, and chronoamperometric studies. The fabricated PANI-NR/GCN modified electrode shows significant electrocatalytic activity, lower charge resistance, high stability, and longevity towards methanol oxidation reaction (MOR) in an alkaline medium.
Alam, Seikh Mafiz,Karim, Mohammad Mainul,Lee, Sang Hak,Wabaidur, Saikh Mohammad,Chung, Hye Young,Choi, Jong Ha,Kang, Meea John Wiley Sons, Ltd. 2008 Luminescence Vol.23 No.5
<P>A simple chemiluminometric method using flow injection has been developed for the determination of laevodopa, based on its sensitizing effect on the weak chemiluminescence (CL) reaction between Na<SUB>2</SUB>SO<SUB>3</SUB> and acidic KMnO<SUB>4</SUB>. Under optimum experimental conditions, the CL intensity was linearly related to the concentration of laevodopa from 3.4 × 10<SUP>–8</SUP> to 2.4 × 10<SUP>–5</SUP> mol/L and the detection limit was 1.1 × 10<SUP>–8</SUP> mol/L (s:n = 3). The relative standard deviation (RSD) of the proposed method calculated from 20 replicate injection of 3 × 10<SUP>–7</SUP> mol/L laevodopa was 3.3%. The correlation coefficient was 0.997. The method was successfully applied to the determination of laevodopa in commercial pharmaceutical formulations and spiked urine samples. Copyright © 2008 John Wiley & Sons, Ltd.</P>
Alam, Seikh Mafiz,Jeon, Chi-Wan,Karim, Mohammad Mainul,Lee, Sang-Hak,Wabaidur, Saikh Mohammad,Suh, Yeoun-Suk,Chung, Hye-Young Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.1
A rapid and sensitive chemiluminescence (CL) method using flow-injection (FI) has been developed for the determination of mandelic acid which is based on the enhancement of mandelic acid to the CL intensity of ${Ru(bipy)_{3}}^{2+}$-Ce(IV) system. The enhancement effect was dependent on the concentration of mandelic acid, based on which, CL system was established for the determination of mandelic acid. The concentrations of ${Ru(bipy)_{3}}^{2+}$+, Ce(IV), and $H_2SO_4$ were optimized. Under the optimum experimental conditions, the linear range and detection limit are 1.46-342.0 ${\mu}g/ml$ and 0.072 ${\mu}g/ml$, respectively. The correlation coefficient (R) was 0.99732. The utility of this method was demonstrated by determining mandelic acid in capsules and human urine sample.
Seikh Mafiz Alam,Chi Wan Jeon,Mohammad Mainul Karim,이상학,Saikh Mohammad Wabaidur,Yeoun Suk Suh,정혜영 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.1
A rapid and sensitive chemiluminescence (CL) method using flow-injection (FI) has been developed for the determination of mandelic acid which is based on the enhancement of mandelic acid to the CL intensity of Ru(bipy) 3 2+-Ce(IV) system. The enhancement effect was dependent on the concentration of mandelic acid, based on which, CL system was established for the determination of mandelic acid. The concentrations of Ru(bipy)3 2+, Ce(IV), and H2SO4 were optimized. Under the optimum experimental conditions, the linear range and detection limit are 1.46-342.0 μg/mL and 0.072 μg/mL, respectively. The correlation coefficient (R) was 0.99732. The utility of this method was demonstrated by determining mandelic acid in capsules and human urine sample.