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

以磷钨和磷钨铝为催化剂,用和丁合成了丁。

Intracellular PHB depolymerase and 3 hydroxybutyrate dehydrogenase catalyze the initial reactions of intracellular PHB catabolism.

进一步比较研究了不同菌株的PHB解聚酶和3羟丁脱氢酶的活性。

Objective To study the changes of GABA receptor during the acute poisoning of unsymmetrical dimethylhydrazine(UDMH).

目的研究偏二甲肼急性中毒时大鼠γ氨丁(GABA)受体的变化。方法放射性配体结合试验。

Synthesis of isoamyl formate, isoamyl acetate, isoamyl propionate, isoamyl butyrate, isoamyl isobutyrate and isoamyl isovalerate by catalysis of hydrated ferric chloride are reported.

研究了氯化铁催化合成甲、乙、丙、丁、丁和。

In addition, some organic acids with the bad breath, such as butyric acid and propionic acid, and indole, methyl indole compounds and cadaverine.

此外，一些有机也与口臭有关，如丁和丙，以及吲哚、甲吲哚和尸胺等化合物。

Objective: To investigate the changes of glutamate (Glu) and gamma-amino butyric acid (GABA) contents in rat brain induced by chronic ethanol treatment and study the protective effects of piracetam.

采用高效液相色谱电化学检测法分别测定大鼠小脑、大脑皮层、海马和丘脑中的谷氨及γ-氨丁含量。