Setting liquids of different pH values were prepared by mixing of sodium phosphate dibasic dedocahydrate(SPDD,Na_2HPO_4·12H_2O) and/or citric acid. α-Tricalcium phosphate(α-TCP) was prepared by calcining β-tricalcium phosphate,and tetracalcium phosphate(TeCP) was obtained by calcining the mixture of dicalcium phosphate dihydrate and calcium carbonate with equal molar.
Later, in the albumin bovine serum solution(pH), which was composed of sodium phosphate dibasic and lemon acid, ferrite/polyacrylamide was disposed with glutaric and used to adsorb BSA.
In this study,α-tricalcium phosphate (α-TCP) and tetracalcium phosphate (TTCP) were served as the solid component of the cement, and the liquid component was consist of sodium phosphate dibasic dedocahydrate (Na2HPO4·12H2O), and/or citric acid.
Factors influencing the degree of substitution (DS) of phosphate monoester of sweet potato starch with esterification of sodium phosphate monobasic (Na 2HPO 4) and sodium phosphate dibasic (NaH 2PO 4) were systematically investigated.
The content of icarin was determined by HPLC. C18 column was used, mobile phase was methanol:0.1mol/mL sodium phosphate dibasic (6:5) and detection wavelength was at 270nm.
C 18 column (4 μm,150 mm×3.9 mm) was used with the mobile phase of methanol sodium phosphate dibasic buffer solution (70∶30). The flow rate was 0.6 mL·min -1 and the column temparature was 40℃. The detection wavelength was 230 nm.
METHODS Nova-Pak C18 column was used with methanol-0.1 % sodium phosphate dibasic anhydrous (75 :25) as mobile phase, the flow rate was 0.8 mL·min-1,detection wavelength was 285 nm, temperature was 40℃.
Based on principles of coagulation and flocculation, effects of amount of inorganic salts and polymer floccutants added on clarity of the centrifugalized alpha amylase fermentation broth f;om bacillus subtilis BF 7658 have been studied.Experimental results show that calcium chloride used as coagulant decreases the zeta potential of the alpha amylase fermentation broth and increases the clarity of the centrifugalized fermentation broth, and that the clarity of the fermentation broth treated by bothcalcium ch...
Factors influencing the degree of substitution (DS) of phosphate monoester of sweet potato starch with esterification of sodium phosphate monobasic (Na 2HPO 4) and sodium phosphate dibasic (NaH 2PO 4) were systematically investigated. The results indicated that the degree of substitution of phosphate monoester increased with the level of esterifying agent, reaction temperature, reaction time, and the amount of catalyzer. However, when pH value increased, DS firs...
A rapid and simple method for the study of the acupuncture effect on monoamine transmitters and related compounds in rabbit plasma and brain tissue by high performance liquid chromatography with electrochemical detection was developed. An ODS column was selected as the separation column at 25 ℃, and pH 4.50, 0.02 mol/L of trisodium citrate-0.05 mol/L sodium phosphate dibasic to methanol (95∶5, volume ratio) without ion-pair at a flow rate of 1.0 mL/min. Four compounds, epinephrine (E), nor...