摘要
利用物理中螺旋测微器原理,对实验装置移液、滴定进行创新设计改进,克服了经典滴定管活塞易渗漏、易产生气泡、装液困难、滴定管尖嘴口挂液、近终点不易控制及酸碱不能通用等问题。改进后的滴定管操作简便、精度高,并能同时作为移液管使用。
The fluid transfer and titration of experimental devices are hereby improved creatively by utilizing the physical principal of screw micrometer. The new device solves the problems in experimenting such as leakage, bubble and hard fluid-filling of the buret pistons, liquid link of the buret tips, hard controlling near the terminal point, the un-interehangeability of acid and alkali, etc. The post-improved buret is precise, easy to operate and can be used as fluid transfer tube.
出处
《实验科学与技术》
2009年第4期152-153,共2页
Experiment Science and Technology
基金
广西教育科学"十一五"规划A类资助经费重点课题(2008A28)
右江民族医学院教育教学改革重点资助项目(右医教字[2007]14号)
