The possibility of determining atomic fractions of the isotopes of carbon directly in urea, nitrobenzene, benzophenone, benzoic acid and 2-Hydroxybenzoic acid in compounds isotopically modified by all carbon centers, as well as by one or several identical carbon centers is considered. The mass peaks...
Initially, the oxidative cleavage of 1-phenylethane-1,2-diol (1a) in MeOH to produce methyl benzoate (2a) was used as a model reaction to evaluate the abilities of the catalysts (Fig.2). Firstly, the results from blank experiments indicated that the reaction did not proceed only in the ...
The efficient use of renewable X/γ-rays or accelerated electrons for chemical transformation of CO2and water to fuels holds promise for a carbon-neutral economy; however, such processes are challenging to implement and require the assistance of catalysts capable of sensitizing secondary electron scatte...
Mass spectrometry (MS) is one of the main techniques for protein identification. Herein, MS has been employed for the identification of bovine serum albumin (BSA), which was covalently immobilized on the surface of a mica chip intended for investigation by atomic force microscopy...
This research was aimed at understanding the characteristics of the naturally aged material through chemical analyses of both organic and inorganic components, in order to provide information for the preservation/conservation of these precious objects. Analytical pyrolysis-gas chromatography/mass spectrometry ...
Mass attenuation coefficient, effective atomic number, and electron density of 12 organic acids, acetic acid (CHO), acrylic acid (CHO), benzoic acid (CHO), butyric acid (CHO), citric acid (CHO), formic acid (CHO), lactic acid (CHO), malic acid (CHO), oxalic acid (CHO), salicylic ...
promoted electrochemical stability, and significantly reduced energy barrier of potential determining step for acidic water oxidation. Consequently, the obtained COF-205-Ru displays a high mass activity with 2659.3 A g−1, which is 32-fold higher than the commercial RuO2, and retains long-...
Residual mass from TG can help to assess the volatilization and decomposition of complexes. The residual masses of complexes 1 and 2 were 0.96% and 1.97%, respectively. The lower residual mass shows that complexes 1 and 2 can be cleanly evaporated and not decomposed. The temperature of 50% ...
By applying material balance, the mass of metals sorbed onto Amberlite XAD-16-HTT resin wascomputed. The sorption capacities of resin for Pd and Cd were 5.46 and 5.21 mg/g, respectively. 3.8. Sorption Kinetics Sorption kinetics is of crucial importance since it yields information about the ...
The higher heating values (HHV) of the samples were evaluated using a Parr 6200 adiabatic oxygen bomb calorimeter (Parr Instrument Company, Moline, IN, USA) calibrated with benzoic acid using standard methods [18]. All samples were prepared by weighing a representative mass (1.0 g) with a 1...