نتایج جستجو برای: wdxrf

تعداد نتایج: 53  

Journal: :Brazilian Journal of Pharmaceutical Sciences 2022

Passiflora nitida Kunth, an Amazonian species, is little studied, although the specie’s high biological potential. Herein plant’s pharmacognostic characterization, extract production, antioxidant potential evaluation, and application of this in cosmetic products reported. The physical chemical parameters analyzed were particle size by sieve analysis, loss through drying, extractive yield, total...

Journal: :Bulletin of Chemical Reaction Engineering & Catalysis 2022

The utilization of fishbone as the carbon source for methylene blue adsorption has been successfully studied. Fishbone was prepared from two kinds fish such marine fisheries (ex. Tenggiri) and freshwater Belida). carbons were by carbonation powder at 500 °C 2 h. Physical properties characterized using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), wavelength dispersive...

2017
Andrew McAlister Melinda S Allen

Exchange activities, formal or otherwise, serve a variety of purposes and were prominent in many Pacific Island societies, both during island settlement and in late prehistory. Recent Polynesian studies highlight the role of exchange in the region's most hierarchical polities where it contributed to wealth economies, emergent leadership, and status rivalry in late prehistory. Building on this r...

Journal: :Cellulose 2023

Abstract Screen-printing and spray-coating methods were used to produce photoluminescent, water-repellent, antimicrobial films on textile fibers. The cotton fabrics firstly finished with a flame-resistant agent. There are number of functional agents that have been applied during the finishing process, including strontium aluminate pigment as antibacterial photoluminescent agent, flame-retardant...

Journal: :Catalysts 2021

MIL-53(Fe) is a metal organic framework that has been recently considered heterogeneous photocatalyst candidate for the degradation of water pollutants under visible or solar radiation, though stability studies are rather scarce in literature. In this work, was successfully synthesized by solvothermal method and fully characterized X-ray diffraction (XRD), attenuated total reflectance Fourier t...

Journal: :Catena 2021

Abstract The study reports the results of a geochemical survey in coastal area northern Italy with focus on distribution chemical elements near surface sediments as result both sediment origin and anthropogenic activities. In addition to emphasizing source-to-sink element dynamics area, main purpose this paper is ascertain if anthropic presence could have altered composition urban industrial ar...

Journal: :Water Research 2021

Pharmaceutically active compounds (PhACs) widely present in urban wastewater effluents pose a threat to ecosystems the receiving aquatic environment. In this work, efficiency of granular activated carbon (GAC) - based catalytic processes, namely wet peroxide oxidation (CWPO), peroxymonosulfate (PMS/GAC) and peroxydisulfate (PDS/GAC) at ambient temperature pressure were studied for removal 22 Ph...

2003
Christopher G. Worley Lisa P. Colletti

Preparing dry specimens from liquid samples for XRF analysis avoids introducing caustic or hazardous liquids into the instrument. Several modifications were made to a dried residue specimen preparation method for quantifying gallium in plutonium metal in order to improve the method accuracy and precision. Ion exchange chromatography was utilized to remove the plutonium prior to casting the drie...

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