| 查看: 315 | 回复: 0 | ||
2009113121a铜虫 (正式写手)
|
[求助]
求大神帮忙翻译一下这段话，可不可以帮我看看
|
|
The solvent systems found particularly useful in differentiating the antibiotic ristocetin B from all other known, antibiotics are: n-butanol saturated with deionized water, n-butanol saturated with deionized-Water and having2.0% w./-v. paratoluene sulfonic acid added to n-butanol rich layer, n-butanol saturated with deionized water having 2.0% w./v. paratoluene sulfonic acid and 2.0% piperidine w./v. added to the butanol rich layer， methylisobutyl ketone saturated with deionized water, and methanol 80 parts and deionized water 20 parts v./v. containing 1.5 %, sodium chloride w./v. and having the strips buffered with a solution containing .95 M sodium sulfate and .05 M sodium acid sulfate (NaHSO4). It has been found that ristocetin B moves less rapidly than. ristocetin A in the latter solvent system, and where there is a mixture of ristocetin B and ristocetin A, two clear longitudinally spaced zones appear in the bioautograph. Comparison of the position of the zone will establish which antibiotic is present. Under optimum conditions using a fresh solvent mixture consisting of the said 80 parts methanol and 20 parts waterl containing the specified. salts,the Rf value of 'ristocetin B is. about .16. and the Rf; value-of ristocetin A is about .40 |
回复此楼» 猜你喜欢
极限拉扯，如何抉择
已经有10人回复
-
入职后第一次管课题组的专利缴费，对账才发现官费比别人多掏了一倍
已经有6人回复
-
OpenAI又攻克数学难题了，离AI做有机合成还有多远？
已经有8人回复
-
课题组会帮你通过考核么？
已经有6人回复
-
售一区SCI文章T0P，我:8O.551.O54,科目全,可十急
已经有9人回复
-
售SCI一区文章，我:8O5.5.1.O5.4,科目全,可伽急
已经有10人回复
-
售SCI一区T0P文章，我:8.O55.1.O.54,科目全,可十急
已经有8人回复
-
售SCI一区T0P文章，我:8.O55.1.O.54,科目全,可十急
已经有9人回复
-
售SCI一区文章，我:8.O.55.1.O.54,科目齐全,可伽急
已经有7人回复
-
售SCI文章，我:8O5.5.1.O.54,科目齐全,可+急
已经有10人回复
