= 457, which is used to calculate the concentration of phenobarbital in solution in %. Test solution is obtained by dissolving Corvalol tablets in 600 ml of water for 45 minutes at a basket rotation speed of 100 rpm. Optical density of the test solution is then measured on a spectrophotometer as above, a solvent is used as the reference solution. Amount of phenobarbital (C12H12N2O3), which has passed into the solution from the tablet, is calculated taking into account the declared content of phenobarbital in the tablet.;EFFECT: invention provides quantitative determination of the active substance without the use of standard phenobarbital samples.;1 cl, 2 tbl, 1 dwg, 1 ex"/>
公开/公告号RU2662070C1
专利类型
公开/公告日2018-07-23
原文格式PDF
申请/专利号RU20170123131
申请日2017-06-29
分类号G01N33/15;G01N21/00;
国家 RU
入库时间 2022-08-21 12:35:26