check sample

2 -cycloxyopropyl-trimethy-lamine chloride with VolHARDS (Thiocyanometry),and drawn the conclusion that the by-products belongedin the 4th-amine salt starch ether produing process have no effect on this method by the contrast samples af-ter reducing pressure distillation.

本文研究了用佛尔哈德法测定1,2-环氧丙基三甲胺氯含量的方法,井通过对减压蒸馏后的剩余物的对照取样测定,得出季胺淀粉醚生产过程中其它产物对本测定方法无影响的结论。