Calcium carbide will immediately have reaction upon coming across with water, generating acetylene and calcium hydroxide, which is the approach of industrial preparation of acetylene (carbide method), the reaction equation is: CaC2 + 2H2O = C2H2 + Ca (OH) 2. ...
For each test, 1 mL PBS was collected and treated with 2% nitric acid. 2.8. Cell viability assay The cytotoxicity of hydrogels to NIH 3T3 cells was evaluated using MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) assays. Briefly, the hydrogel was soaked in a basic ...
Another half was digested with 6:1 wet acid ultrapure concentrated nitric acid: Perchloric acid using a Microwave Digestion System. The digested samples were then diluted with ultrapure deionized water and processed to measure Pb concentrations. The third half (0.2 g) was placed in 1 ml ...
According to Equation (6), the most influential factor is calcium concentration [Ca2+] with a positive effect on the response (+37.08), followed by magnesium concentration [Mg2+] (+3.46) and sodium concentration [Na+] (+1.69), which has a positive but moderate effect on hardness removal. ...
RWC was calculated on the basis of the following equation: RWC (%) = [(FW-DW)/(TW-DW)] × 100 The content of malondialdehyde (MDA) was determined by an ultraviolet spectrophotometer, and lipid peroxidation was determined on the basis of the thiobarbituric acid (TCA) reaction [35]. The...
The PT conversion efficiency (η) of the prepared Ca2+-doped MgFe2O4 NPs (125 µg/mL) aqueous solution was calculated according to the available reference Equation (1) [30,31,32]. The UV–vis spectra and TEM images of the Ca2+-doped MgFe2O4 NPs were observed after four laser on/...
·cm) with a water-to-cement ratio of 2:1. The pH value of the pore solution was tested using an FE28 pH-meter (Mettler Toledo, Zurich, Switzerland). After acidization by nitric acid, the ion concentration of the pore solution was tested via inductively coupled plasma optical emission ...