| 1. | Methods : a classic developing solvent theory and the optimization theory of prisma were used 方法:运用经典展开剂理论,参照prisma优化模型。 |
| 2. | Proposal on strictly limiting use of carcinogenic or strong virose organic solvents as mobile phase in test of drugs 关于严格限制项目检验中使用致癌或强毒性有机溶剂作为展开剂的建议 |
| 3. | ( 2 ) studies the tlc of the samples . it showes that we can effectively separate and detect the compound in all samples by tlc 前两者展开剂为氯仿-甲醇( 25 : 1 ) ,显色剂为10硫酸乙醇溶液,自然光下观察。 |
| 4. | Methods under the various separating condition , the anticoagulating active components of scorpion were appraised with thin layer chromatography ( tlc ) and paper chromatography 方法用不同的展开剂,采用薄层色谱法和纸层析法对全蝎抗凝活性成分进行鉴定和分析。 |
| 5. | Results : with the new system , chloroform - methanol - water - formic acid ( 80 : 20 : 10 : 1 ) at 3 over night with below solution , the colored impurity from degradation could be detected 结果:以氯仿甲醇水甲酸( 80 : 20 : 10 : 1 ) 3放置过夜后的下层溶液为展开剂,对降解时间内的杂质均能检出。 |
| 6. | Methods the optimal elution requirement was found by comparing several different elution agents , and the pure compound was purified by silica gel column and gel chromatography 方法通过最佳展开剂的选择,找到硅胶柱色谱系统的最佳洗脱条件,粗分离后的供试品通过凝胶柱色谱系统分离纯化得到纯供试品。 |
| 7. | In the process of experiment , we separated better efficient antioxidative fractions by silica gel column chromatography with different extensible reagent , ethyl acetate : hexane ( 3 : 7 ) and chloroform : methanol ( 9 : 1 ) 实验中采用乙酸乙酯环己烷( 3 : 7 ) 、氯仿甲醇( 9 : 1 )为展开剂依次二次干柱层析分离出抗氧化物质。 |
| 8. | This material was loaded onto a silica gel column and the column was eluted with chloroform several times until the fraction of interest was collected . finally we obtained some light yellow green ointment liquid f i 采用硅胶作干层析柱填充物,用氯仿作展开剂和洗脱液,反复硅胶层析,对柄海鞘鞘囊氯仿浸提物进行分离、提取与纯化,最后得到一浅黄绿色的油状液体fraction (以下均称f ) 。 |
| 9. | A single direction thin layer chromatography ( stlc ) was researched in order to detect citrinin from above samples , . the results revealed that ethyll acetate : toluene : formic acid ( 6 : 3 : 1 ) was a good developer , then the citrinin from the 29 hongqu samples above were detected , and 6 samples with citrinin less than 0 . 20 g / g ( stlc ) and their strains were screened 第二,以上述29个红曲样品为实验材料,对红曲中桔霉素的(单向)薄层层析( stlc )条件进行了研究。结果显示,以甲苯:乙酸乙酯:甲酸( 6 : 3 : 1 )为展开剂,桔霉素的分离效果较好。 |