Some laxative drugs such as magnesium sulfate,Bisatin,phenolphthalein,glycerol etc for common use were introduced.

绍几种治疗慢性便秘药剂，包括：硫酸镁，比沙啶，酚酞，甘油，开塞露等。并绍它法。

The assay of content of methoxyamine hydrochloric acid using phenolphthalein indicaor and NaOH as titrant was developed.

提出以酚酞为指示剂,氢氧化钠为滴定剂测定甲氧胺盐酸盐含量方法。

So the mixed indicator of phenolphthalein with alizarin red-methyl red could be used as the new indicator for the alkalify water determination.

采百里酚蓝-甲酚红、溴甲酚绿-甲基红混和指示剂测试效果较差。