ObjectiveTo a method for determining 3-butyl phthalide in Celery Seed by HPLC.

Result: In optimal conditions, the yield of n-butyl gallate was over 93.8 %.

结果: 在最佳实验条件下没食子酸正丁酯收率达93.8%.

Objective To establish gas chromatographic method for butyl acetate in workplace air.

建立工作场所空气中乙酸丁酯的热解吸气相色谱测定方法.

Then-butyl hydroxyethanoate was synthesized by cation exchange resin as catalyst.

以强酸性阳离子交换树脂为催化剂,合成羟基乙酸正丁酯.

Antioxidant tertiary butyl hydroquinone was prepared by hydroquinone and tertiary butyl alcohol.

由对苯二酚与叔丁醇反应制得抗氧化剂叔丁基对苯二酚.

The friction of n-butyl stearate initially decreases with increasing temperature.

硬脂酸丁脂的摩擦开始时随温度的上升而下降.

With di-iso-butyl dimethoxy DIBS, DQ catalyst was more sensitive to hydrogen regulation.

使用二异丁基-二甲氧基硅烷, DQ催化剂的氢调敏感性更好.

They were good catalyst for synthesis of n-butyl cinnamate.

它们是催化合成肉桂酸正丁酯的良好催化剂.

This method is applicable in the field of butyl acetate production.

本方法适用于醋酸丁酯的生产领域.

Synthesis of n-butyl lactate is catalyzed by phosphotungstic acid and aluminium phosphotungstate.

以磷钨酸和磷钨酸铝为催化剂,用乳酸和正丁酸合成了乳酸正丁酯.

The selection of the epoxy modified acrylate resin, butylated amino resin and wax powder is discussed.

讨论了环氧改性丙烯酸树脂 、 氨基树脂及蜡粉的选择.

By means a micro-twin-blender the blending of lignin with poly ( butylene terephthalate ) ( PBT ) was studied.

利用微型双螺杆共混仪研究了木质素与 聚对苯二甲酸 丁二酯的共混过程.

Catalytic oligomerization of remain butylene is a way for enterprises to rebottle andpotentialities for more benefits.

剩余丁烯催化齐聚是企业消除瓶颈、挖潜增效的途径.

Its main components include propane, butane and butylene.

主要成份是丙烷 、 丁烷、丁烯等.

Butane and butylenes has the same characteristic with propane and propylene.

丁烯与丁烷表现出与丙烯、丙烷相似的特性.

The application ofp-toluene sulfonic acid as catalyst for synthesis of carboxylic ester ( ethyl butyrate ) is studied.

研究了对 甲苯 磺酸作为催化剂在羧酸酯 ( 丁酸乙酯 ) 合成中的应用.

Synthetic method of butyl butyrate was investigated using silicotungstic acid catalyst absorbed on activated carbon.

用活性炭固载硅钨酸催化剂催化合成了丁酸丁酯.

Isoamyl butyrate was synthesized by using gallium sulfate supported on silica gel as the catalyst.

以自制的硅胶固载硫酸镓为催化剂,正丁酸和异戊醇为原料合成了丁酸异戊酯.

Objective : To study the mechanism of sodium butyrate ( NaB ) on human ovarian cancer cell line 3 AO.

目的: 研究丁酸钠逆转人卵巢癌3AO细胞恶性表型的机制.

The nano fibers from cellulose acetate butyrate ( CAB ) were prepared via electrospinning.

应用静电纺丝法制备了醋酸丁酸纤维素纳米纤维.

Butyrate salt series: sodium butyrate. calcium butyrate, zinc butyrate.

丁酸盐系列: 丁酸钠, 丁醋钙,丁酸锌等.