Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Ahmed A. Alnajjar"'
Publikováno v:
Molecules, Vol 29, Iss 12, p 2875 (2024)
Atenolol (ATE) and propranolol (PRO) inclusion complexes with β-cyclodextrin have been investigated in aqueous solution. The aqueous solution was examined and characterized using UV–vis, fluorescence spectroscopy, and 1H NMR. The physical mixture
Externí odkaz:
https://doaj.org/article/d964ab070258455ca6f153507524fb9a
Autor:
Abdalla A. Elbashir, Mahgoub Ibrahim Shinger, Xoafang Ma, Xiaoquan Lu, Amel Y. Ahmed, Ahmed O. Alnajjar
Publikováno v:
Molecules, Vol 28, Iss 4, p 1586 (2023)
In this study, a carboxylated carbon nanotube-grafted Ag3PO4@AgIO4 (CNT-COO−/Ag3PO4@AgIO4) composite was synthesized through an in situ electrostatic deposition method. The synthesized composite was characterized by Fourier transform infrared (FT-I
Externí odkaz:
https://doaj.org/article/040ec23e6d9546a19a11e9bd85c452d6
Publikováno v:
Molecules, Vol 28, Iss 3, p 1136 (2023)
The inclusion complexes of cucurbit[n]uril, CB[n] (n = 6–8), with poly aromatic hydrocarbon (PAH) Benzo(a)Pyrene (BaP), and fluoranthene (FLT) were investigated carefully in aqueous media. Fluorescence and 1H NMR spectroscopy were used to character
Externí odkaz:
https://doaj.org/article/8df8248b525c40bda3e00df2101e2d45
Autor:
Maymonah K. I. AlThikrallah, Abubakr M. Idris, Abdalla Ahmed Elbashir, Rafea E. E. Elgorashe, Alyah Buzid, Ahmed O. Alnajjar
Publikováno v:
Molecules, Vol 28, Iss 3, p 1184 (2023)
A capillary zone electrophoretic (CZE) method was developed, validated, and applied for the assay of metformin (MET) and pioglitazone (PIO) in pharmaceutical formulations. The optimum running buffer composition was found to be 75 mmol/L phosphate buf
Externí odkaz:
https://doaj.org/article/f533659505fd4cefb4b2b2cf74a82a67
Publikováno v:
Fuel. 334:126671
Publikováno v:
Journal of the Taiwan Institute of Chemical Engineers. 116:286-302
Anti-corrosion protective self-healing coating systems for carbon steel that utilizes ZnO, TiO2, and ZnO-TiO2 nanocomposites and polyvinyl chloride (PVC) as an organic healing agent was introduced. These nanocomposites systems were fabricated by a fa
Publikováno v:
Critical Reviews in Analytical Chemistry. 52:535-543
Capacitively coupled contactless conductivity detection (C4D) has emerged as influential to detect analytes that do not have chromogenic or fluorogenic functional group. Since our last review sever...
Autor:
Ahmed A. Alnajjar, Sara Alaleeli
Publikováno v:
Journal of Technology and Science Education, Vol 10, Iss 1, Pp 159-178 (2020)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
This paper investigated the extent to which senior high school students who typified the profile of the Arab Digital Generation (ADG) engaged with technology while outside the school. Data was collected using a questionnaire that measured the extent
Autor:
Manale Noun, Ammar M. Ebrahim, Rafea E. E. Elgorashe, Ahmed O. Alnajjar, Adel A. El-Zahhar, Mohamad Roumie, Abubakr M. Idris, I.M. Ashraf, Khaled F. Fawy, Turki S. Alkhuraiji, Ali Srour
Publikováno v:
International Journal of Environmental Analytical Chemistry. 101:778-793
Taking advantages of non-destructive techniques, between-bottles homogeneity tests were carried out in term of elemental composition of seven certified reference materials (CRMs) candidates using p...
Autor:
Abdalla Ahmed Elbashir, Rafea Elamin Elgack Elgorashe, Ahmed O. Alnajjar, Hassan Y. Aboul‐Enein
Publikováno v:
SEPARATION SCIENCE PLUS. 4