1·The adsorption of urea nitrogen onto dialdehyde cellulose (DAC) under catalysis of immobilized urease in gelatin (IU) was studied in batch system.
研究了在固定化脲酶催化作用下双醛纤维素对尿素氮的吸附平衡和动力学。
2·The content of dialdehyde starch was determined by spectrophotometry with the color agent alkaline fuchsin - sulfurous acid.
以碱性品红-亚硫酸为显色剂，用分光光度法对双醛淀粉含量的测定条件、灵敏度、回收率进行研究。