The correct answer: Atoms of oxygen have a total of eight electrons. These oxygen atoms are not stable. The stability depends on the electronic...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer y...
Since very old times, herbal medications have been used for relief of symptoms of disease [1]. Despite the great advances observed in modern medicine in recent decades, plants still make an important contribution to health care. Much interest, in medicinal plants however, emanates from their lon...
where i=current (A or charge/s), t=time (s), F=Faraday's constant (charge/mole of electrons), V=iodide reagent solution volume (L), and 2 represents the number of electrons transferred between iodide and tri-iodide. Calculation 3. Divide difference of the voltage measured before the ...
(1) Background: Much effort has been expended to investigate the antioxidant capacity of human plasma, attempting to clarify the roles of both metabolic and food substances in determining defenses against oxidative stress. The relationship between the total antioxidant capacity (TAC) and the concentrat...
In the pretreatment step, the samples that contain phosphorous are decomposed into phosphate (PO43−) to measure the concentration of the total phosphorus in the water. After adding potassium persulfate (K2S2O8), a decomposing agent, to phosphorus that contains a compound, the irradiation of ...
The antioxidant activity results of RFO produced by UAE and wet rendering are provided in Figure S1. The principle of the DPPH method is the presence of hydrogen atoms from antioxidant compounds that bind to free electrons in radical compounds, causing a change from free radicals (diphenyl...
The principle of the method is that silver ions interact reversibly with the π electrons of double bonds in a molecule, the stronger the complex formed the longer it is retained [46] so that lipids can be fractionated depending on the number and configuration of double bonds. Nevertheless, ...
For a reversible process, the Randles–Ševc´ik equation has been used: Ip = 2.686 105 n 3/2 Ae D01/2 C0 v1/2 where Ip is peak current in ampere (A), n is number of electrons transferred of K3[Fe(CN)6] by CV in the redox event (usually 1), Ae is electroactive area ...
The principle of the method is that silver ions interact reversibly with the π electrons of double bonds in a molecule, the stronger the complex formed the longer it is retained [46] so that lipids can be fractionated depending on the number and configuration of double bonds. Nevertheless, ...