By means of adjusting the pH value of solution,we eliminated the effect of phosphate on ammoniumwhich is determined by formaldehyde method.

文章通过调节溶液的pH值,消除磷酸盐对甲醛法测定铵根的影响,针对溶液中磷酸盐存在的不同形态,建立了含磷酸盐体系中铵根的快速测定方法。

This study dealt with D061 resin,a macroporous strong acidic resin,which was used to recover oxytetracycline from the fermentation residue mother liquor,focusing on its exchange properties in terms of static saturated adsorption volume,the desorption rate and the adverse influence of remaining ammoniumin the waste liquor.

4mg/g干树脂;用氨水脱附,脱附率可达95%;实验表明,母液中铵根的存在,对树脂交换容量有较大的影响。

Synthesis of CrO_4H~- quaternary ammonium salt resin and its application in oxidation of furancarbinol to furaldehyde;

铬酸氢根季铵树脂的合成及其对糠醇的氧化

The synthesis of HCrO_4~- quaternary ammonium salt resin is studied using HCrO_4 ~-quaternary ammonium salt resinas a selective oxidant for oxidation of benzyl alcohol to benzaldehyde.

实验结果表明 :在以苯为溶剂 ,反应温度为 80℃ ,树脂与苯甲醇的量比为 3∶1,反应回流 12h的反应条件下 ,产物苯甲醛的产率达 6 5 % ;铬酸氢根季铵盐树脂是一种将苯甲醇氧化为苯甲醛的有效的选择性氧化剂 。