Showing 1,641 - 1,660 results of 5,069 for search '"Fourier transform"', query time: 0.07s Refine Results
  1. 1641

    Effect of Cooling Rates on Shape and Crystal Size Distributions of Mefenamic Acid Polymorph in Ethyl Acetate by Siti Kholijah, Abdul Mudalip, Fatmawati, Adam, Jamal, Parveen, Mohd Rushdi, Abu Bakar, Norliyana, Amran, Siti Zubaidah, Sulaiman, Rohaida, Che Man, Zatul Iffah, Mohd Arshad, Shalyda, Md Shaarani

    Published 2017
    “…The crystals produced were analysed using optical microscopy and Fourier transform infrared spectroscopy (FTIR). It was found that the crystals produced at different cooling rates were needle-like and exhibit polymorphic form type I. …”
    Get full text
    Conference or Workshop Item
  2. 1642

    Extraction, Radical Scavenging Activities and Physicochemical Fngerprints of Black Pepper (Piper Nigrum) Extract by Olalere, Olusegun Abayomi, Nour, A. H., Alara, Oluwaseun Ruth

    Published 2017
    “…However, the optimum percentage inhibitions of the extracted spice oleoresins on the stable DPPH and hydrogen peroxide radicals were estimated to be 88.75 and 90.31%, respectively. Moreover, the Fourier transform infrared (FTIR) analysis confirmed the presence of unsaturated amide groups, which validated the antioxidant potential of the black pepper extract. …”
    Get full text
    Article
  3. 1643

    Highly Active and Reusable Kenaf Cellulose Supported Bio-Poly(hydroxamic acid) Functionalized Copper Catalysts for C–N Bond Formation Reactions by Siti Hajar, Mohamad Ros, Islam, Md. Shaharul, Lutfor, M. R., Rashid, Shah Samiur, Chowdhury, Zaira Zaman, Ali, Md. Eaqub, Sarkar, Shaheen M.

    Published 2017
    “…They were characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), inductively coupled plasma atomic emission spectrometry (ICP-AES), UV-vis spectroscopy (UV), and X-ray photoelectron spectroscopy (XPS). …”
    Get full text
    Article
  4. 1644

    Extraction, Radical Scavenging Activities and Physicochemical Fingerprints of Black Pepper (Piper nigrum) Extract by Olalere, Olusegun Abayomi, Nour, A. H., Alara, Oluwaseun Ruth

    Published 2017
    “…However, the optimum percentage inhibitions of the extracted spice oleoresins on the stable DPPH and hydrogen peroxide radicals were estimated to be 88.75 and 90.31%, respectively. Moreover, the Fourier transform infrared (FTIR) analysis confirmed the presence of unsaturated amide groups, which validated the antioxidant potential of the black pepper extract. …”
    Get full text
    Article
  5. 1645

    Antimicrobial activities of silver nanoparticles bio-synthesized from diatom Amphora sp. by Tevan, R., Mugilan, Govindaraju, Saravanan, Jayakumar, Govindan, Natanamurugaraj, Mohd Hasbi, Ab. Rahim, Gaanty Pragas, Maniam, Ichwan, Solachuddin J. A.

    Published 2017
    “…The physio-chemical properties of synthesized silver nanoparticles were studied using analytical techniques such as UV-Vis spectrophotometer, Field Emission Scanning Electron Microscopy (FESEM), Energy-Dispersive X-ray Spectroscopy (EDX) and Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Powder Diffraction (XRD). …”
    Get full text
    Article
  6. 1646

    Analysis of bioactive compounds for Jasmine flower via Gas chromatography-mass spectrometry (GC-MS) by Rassem, Hesham H. A., Nour, A. H., R. M., Yunus

    Published 2018
    “…Functional group analysis was carried out on the volatile oil obtained through MAHD by using Fourier Transform Infrared Spectroscopy (FTIR). The surface morphologies of untreated dried powdered Jasmine flower (i.e. raw powdered jasmine flower without soaking into methanol solution prior to extraction) and pre-treated powdered Jasmine flower (soaked into methanol solution for 1 hr) were investigated through SEM analysis.…”
    Get full text
    Article
  7. 1647

    Microwave-assisted extraction of Vernonia amygdalina leaf for optimal recovery of total phenolic content by Alara, Oluwaseun Ruth, Nour, A. H., Siti Kholijah, Abdul Mudalip, Olalere, Olusegun Abayomi

    Published 2018
    “…Furthermore, the efficiency of MAE was compared with Soxhlet, it was observed that the yields, antioxidant activity and functional groups from Fourier transform infrared (FTIR) analysis was higher than that of the Soxhlet extract.…”
    Get full text
    Article
  8. 1648

    Size-dependent charge storage of graphene flakes by K. F., Chong, C. Chan, Geraldine S., Ali, Gomaa A. M., Eunice Tang, Danella, Algarni, H.

    Published 2018
    “…The oxygen-related functionalities on rGO samples are quantified by Fourier transform infrared spectroscopy and reveal that higher amount of unreduced oxygen functionalities can be found on rGO with smaller flake size. …”
    Get full text
    Get full text
    Conference or Workshop Item
  9. 1649

    Palm kernel meal as a melamine urea formaldehyde adhesive filler for plywood applications by Ong, Huei Ruey, Khan, Maksudur R., Prasad, D. M. Reddy, Yousuf, Abu, Chowdhury, M.N.K.

    Published 2018
    “…The physico-chemical interaction between the wood, resin and filler was investigated using Fourier transform infrared spectroscopy (FTIR) and the interactions among C˭O groups on PKM and N‒H, O‒H groups on wood and MUF were identified. …”
    Get full text
    Article
  10. 1650

    Synthesis of hydroxyapatite from cockle shell wastes by Siti Hajar, Saharudin, Jun Haslinda, Haji Shariffuddin, Aqeela, Ismail

    Published 2018
    “…All samples have undergone physicochemical analyses to determine their crystallinity, purity, functional group, surface morphology and elemental compounds using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM) and Electron Dispersive X-ray Analysis (EDX). …”
    Get full text
    Conference or Workshop Item
  11. 1651

    Degradability studies of PLA nanocomposites under controlled water sorption and soil burial conditions by Norazlina, H., A. A., Hadi, A. U., Qurni, M., Amri, Mashelmie, S., Kamal, Yusoh

    Published 2018
    “…The treated CNTs were surface modified by using acid treatment and characterisations of composites were done by using Fourier Transform Infra-Red (FTIR) and UV-Vis. FTIR spectra and UV-Vis peak confirmed the surface modification of CNTs. …”
    Get full text
    Conference or Workshop Item
  12. 1652

    Activated carbon (AC) production from spent mushroom substrate (SMS) from frozen food industry by Muhamad Adib, Rinalto

    Published 2016
    “…In order to characterize the AC produce, the Surface area analyzer (BET), Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analyzer (TGA) is use to analyze the AC’s properties. …”
    Get full text
    Undergraduates Project Papers
  13. 1653

    Extraction and characterization of bioactive compounds in Vernonia amygdalina leaf ethanolic extract comparing Soxhlet and microwave-assisted extraction techniques by Alara, Oluwaseun Ruth, Nour, A. H., Ishmael, Ukaegbu Chinonso, Kabbashi, Nassereldeen Ahmed

    Published 2019
    “…Furthermore, gas chromatography-mass spectroscopy (GC-MS) analysis results revealed the presence of more phytochemicals in the extract obtained through MAE compared to Soxhlet extraction technique, whereby phytol was present in a higher percentage. Fourier transform infrared spectroscopy analysis confirmed the presence of phytochemicals in the extracts. …”
    Get full text
    Article
  14. 1654

    Effect of Aging Time in the Synthesis of Biogenic Hydroxyapatite Derived from Cockle Shell by Siti Hajar, Saharudin, Jun Haslinda, Haji Shariffuddin, Noor Ida Amalina, Ahamad Nordin, Aqeela, Ismail

    Published 2019
    “…All samples have undergone physicochemical analyses to determine their phases, crystallinity, purity, functional group, surface morphology and elemental analysis using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM) and Electron Dispersive X-ray Analysis (EDX). …”
    Get full text
    Article
  15. 1655

    Optimization of aceclofenac proniosomes by using different carriers, Part 1 : development and characterization by Sammour, Rana M.F., Taher, Muhammad, Chatterjee, Bappaditya, Shahiwala, Aliasgar, Mahmood, Syed

    Published 2019
    “…Prepared proniosomes characterized by differential scanning calorimetry (DSC) analysis and Fourier transform infrared (FTIR) analysis revealed the compatibility of the drug chosen with the ingredient added, powder X-ray diffractometry (XRD) confirmed the amorphous phase of the prepared proniosomes, and finally, the surfactant layer was observed by scanning electron microscopy (SEM). …”
    Get full text
    Article
  16. 1656

    Tubular carbon membrane for Hydrogen separation: Effect of Pyrolisis condition by Mohd Syafiq, Sharip, Norazlianie, Sazali

    Published 2020
    “…Matrimid 5218-based carbon tubular membranes were fabricated and characterized in terms of its structural morphology, chemical structure, thermal stability, and gas permeation properties by using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and pure gas permeation system, respectively. …”
    Get full text
    Article
  17. 1657

    Thermal treatment of tar generated during co-gasification of coconut shell and charcoal by Monir, Minhaj Uddin, Khatun, Fatema, Azrina, Abd Aziz, Vo, Dai-Viet N.

    Published 2020
    “…The tar samples (before and after thermal treatments) were investigated by Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy analyses while the morphological changes were examined using a scanning electron microscope coupled with energy-dispersive X-ray analysis. …”
    Get full text
    Article
  18. 1658

    Pebax 1657 Nanocomposite Membranes incorporated with nanoadsorbent derived from Oil Palm Frond for CO2/CH4 Separation by Alia Aqilah, Ghazali, Sunarti, Abd Rahman, Rozaimi, Abu Samah

    Published 2020
    “…The morphology and the existence of active groups in the newly synthesized nanoadsorbent and nanocomposite membranes were investigated by field emission scanning electron microscopy (FESEM) and fourier transform infrared spectroscopy (FTIR), respectively. …”
    Get full text
    Conference or Workshop Item
  19. 1659

    Modification of diutan gum to enhance rheological properties for oil and gas application by Norhanis, Arbaa′In, Rasidi, Roslan, Jamil, Ismail, Mohd Hasbi, Ab. Rahim

    Published 2018
    “…The modified-diutan gum (MDG) were characterized using Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and rheometer. …”
    Get full text
    Conference or Workshop Item
  20. 1660

    Investigation of impregnated commercial rice husks activated carbon with alkanolamine as carbon dioxide (CO2) adsorbent by Siti Noraishah, Masoum Raman, Saidatul Shima, Jamari, Noor Asma Fazli, Abdul Samad, Nur Aminatulmimi, Ismail

    Published 2016
    “…The adsorbents obtained were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Field Emission Scanning Electron Microscopy (FESEM). …”
    Get full text
    Article