查询词典 acetonitrile

Lycorine, lycoramine and galanthamine in Lycoris radiata were microwave-assisted extracted and determined by HPLC using triethylamine aqueous solution (pH9.00)-acetonitrile-methanol as the mobile phase.

采用微波辅助提取法提取石蒜中的石蒜碱、力可拉敏和加兰他敏生物碱，建立了微波辅助提取／HPLC测定石蒜中这3种生物碱的分析方法。

Previously,these reactions were performed in dry acetonitrile which was manipulatively complex and environmentally unfriendly.

以前报道的此类反应，都是在有毒的有机溶剂，如乙腈中进行的，而且需要加入分子筛以除去反应体系中的水。

F. Nees and their metabolites by HPLC, the mobile phase was acetonitrile-water (0.1% methanoic acid) for gradient elution, Column temperature was 25℃, flow rate was 1.0mL/min, the detection wavelength was at 254nm..

采用HPLC对穿心莲及其代谢产物进行研究，以乙腈-0.1%甲酸水进行梯度洗脱，柱温为25℃，流速为1.0mL/min，检测波长为254nm。

Methods A LiChrospher RP-C_(18)(250 mm×4.6 mm,i.d.5μm)column was used and the mobile phase was acetonitrile-water (1.0% methanoic acid)for gradient elution.

采用LiChrospher RP- C_(18)(250mm×4.6mm，i.d.5μm)色谱柱，以乙腈-水(1.0%甲酸)为流动相，梯度洗脱，双波长检测。

Using UPLC system,WATERS ACQUITY UPLC BEH C~(18)(2.1 mm×50 mm,1.7μm) column and the mobile phase of 1% methanoic acid solution-acetonitrile with the flow rate of 0.6 mL·min~(-1),the determination wavele...

使用 UPLC 色谱系统，BEH C~(18)色谱柱(2.1mm×50mm，1.7μm)；流动相为1%甲酸溶液—乙腈；流速为0.6mL·min~(-1)；检测波长为280nm。

The separation was achieved within 4 min using a BEH Shield RP18 column (100 mm 2.1 mm, 1.7 μm) with 50 mmol/L monoammonium phosphate solution (pH 6.5) and acetonitrile as the mobile phase.

以BEH Shield RP18柱(100 mm 2.1 mm，1.7 μm)为分析柱，以50 mmol/L的磷酸二氢铵(pH 6.5)和乙腈为流动相进行梯度洗脱，3种磷酸腺苷在4 min内实现了较好的分离。

The chromatographic conditions were as followed: C8 column, 0.045 mol/L ammonium phosphate monobasic solution∶acetonitrile (2∶1)(adjusted to pH7.35 with triethylamine) as mobile phase, temperature: 40℃, the flow rate: 1.0 ml/min, detection wavelength: 210nm.

采用C8柱，以0.045mol/L磷酸二氢胺溶液∶乙腈(2∶1)(用三乙胺调pH至7.35)为流动相，流速1ml/min，检测波长210nm，柱温40℃。

Methods Using Diamonsil ODS1 C18 Column, acetonitrile- 0.033mol/L Potassium Phosphate Monobasic acid(35:65) as the mobile phase,detection wavelength as 265nm and flow rate was 1.0ml/min.

HPLC用外标一点法，Diamonsil ODS1 C18柱，乙腈- 0.033mol/L磷酸二氢钾溶液(35：65)为流动相，流速为1.0ml/min，λ=265nm。

The chromatographic conditions were as followed: C8 column, 0.045 mol/L ammonium phosphate monobasic solution∶acetonitrile (2∶1)(adjusted to pH7.35 with triethylamine) as mobile phase, temperature: 40℃, the flow rate: 1.0 ml/min, detection wavelength: 210nm.

采用C8柱，以0.045mol/L磷酸二氢胺溶液∶乙腈(2∶1)(用三乙胺调pH至7.35)为流动相，流速1ml/min，检测波长210nm，柱温40℃。结果阿奇霉素的线性范围为50.3～1006μg/ml，平均回收率100.1%，r=1.0000，RSD=0.8%(n=9)。

Hypersil of ODS-C18 was used with acetonitrile-0.01mol/L monobasic potassium phosphate-triethylamine phosphoric acid8:92:0.4:0.3） as mobile phase.

色谱柱：依利特 Hypersil ODS柱4.6 mm×250mm，5μm），流动相：乙腈-0.01mol/L磷酸二氢钾溶液－三乙胺－磷酸（8 ： 92 ： 0.4 ： 0.3）。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。