Wollastonite

用法例句

A new method using gradient elution of reversed phase high performance liquid chromatography was set up for the separation and determination of 12 natural phenolic acids simultaneously.

采用反相高效液相色谱法梯度洗脱 ,对 12种天然酚酸进行定性定量分析研究。

When the product was acidified by natural acid such as lactic acid, citric acid, malic acid and tartarica acid, the solubility of the product in water increased greatly and cationic surfactant aqueous solution was got, and the pH of the acidic aqueous solution .

将产品与一系列的天然酸复配,使其在水中的溶解度大大增加,得到pH为6—7刺激性低的水溶液,并对溶液的表面性质进行了测定。