Web北京吉瑞森科技有限责任公司供应Daisogel-大曹色谱填料（Daisogel）供应产品,大曹色谱填料（Daisogel）北京吉瑞森科技有限公司&南通海箬化学 ... 提供可以用于正相色谱或者 … Web1.一种通式(iii)所示的化合物或其可药用盐， 其中： 2 r为氰基； cy选自7‑10元稠杂环或7‑10元螺杂环，其中一个或多个环原子为选自氮的杂原子，其余环原子为碳； 1 l为单键； 2 a l选自‑c(o)‑、‑s(o)n‑、‑c(o)n(r)‑； 1 r选自c1‑c6烷基、c3‑c6环烷基、苯基、5元或6元杂芳基，其中所述苯基、5元或6 ...

Other Phases – Dr. Maisch

http://www.daiso-co.com/eng/silica/gel/c8-p.html WebThe combined organic layers are washed with brine, dried over MgSO4, filtered and evaporated to dryness. The residue is purified by preparative reverse-phase chromatography on a Daisogel C18-ODS AP column with a water/formic acid (10'000:1 ) to acetonitrile/formic acid (10'000:1 ) to give the title compound as a wax after removal of … duffel bags wholesale clearance

A Strategy for Simultaneous Isolation of Less Polar Ginsenosides ...

WebOct 1, 2024 · Daisogel C18 column (10 μm, 100 A): The injection volume was 1 mL. The flow rate was 5 mL/min, and methanol as mobile phase, single liquid phase run time was 80 min, and the component was collected for 5 min each time. μ-Bondapark C18 column (10 μm, 19 mm × 250 mm ): The injection volume was 0.5 mL, the flow rate was 2 mL/min, … WebMEGA™:. Successful manufacturer of GC-columns since 1980. For over 35 years MEGA produces GC-MS low bleeding columns, FAST and Ultra-FAST GC-columns, which are … Web1.一种通式(iii)所示的化合物或其可药用盐， 其中： 2 r为氰基； cy选自7‑10元稠杂环或7‑10元螺杂环，其中一个或多个环原子为选自氮的杂原子，其余环原子为碳； 1 l为单 … communication is plural or singular