isobutyric acid
英
美
n. 异丁酸
双语例句
- A novel catalytic system CaCl_2 · 2H_2O/ K_2S_2O_8/ CF_3COOH was used for direct carboxylation of propane to give isobutyric acid. The effects of reaction temperature 、 reaction time 、 CO pressure and catalyst were investigated.
采用一种新型的催化体系CaCl2·2H2O/K2S2O8/CF3COOH，将丙烷直接羰基化反应合成异丁酸，考察了反应过程中温度、反应时间、CO压力和催化剂等因素对反应收率的影响； - Isobutyric acid modified ZnO nanoparticles were prepared by direct precipitation method in water solution. The sample was characterized by TEM, XRD, IR, XPS, UV-Vis, PL.
采用直接沉淀法制备了异丁酸修饰纳米氧化锌微粒，用XRD、TEM、XPS、IR、UV-Vis、PL等检测手段对样品进行结构表征。 - Separation of am, cm, CF and y by cation exchange with α-hydroxy isobutyric acid
α-羟基异丁酸阳离子交换色层法分离Am、Cm、Cf和Y - The alkylation of isobutyric acid, alkyl isobutyrate and isobutyric anhydride with 1-bromo-3-chloropropane, 1,3-dibromopropane and some monohalogen compounds was studied. The yields of these reactions and the IR, 'H NMR data were given.
本文用Kearney法研究了1-溴-3-氯丙烷、1,3-二溴丙烷及几种一卤代化合物与异丁酸盐、异丁酸酯及异丁酸酐的烷基化反应，探索了具有特戊酸结构单元的化合物的合成方法。 - Most of the specimens containing acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, lactic acid and succinic acid which were accorded with the result of bacteriologic study.
在大多数标本中含有乙酸、丙酸、丁酸、异丁酸、戍酸、乳酸和琥珀酸，与细菌培养的结果基本相符。 - Four kinds of compounds including n-propanol, ethyl acetate, ethyl decylate and isobutyric acid were selected for recovery rate determination ( recovery rate between 84%~ 107%).
选取正丙醇、乙酸乙酯、癸酸乙酯、异丁酸4种化合物进行加标回收率测定，结果回收率均在84%～107%之间。 - Using borneol, isoborneol, acetic acid, propionic acid, butyric acid and isobutyric acid as the raw materials and nanometer solid superacid S2 O 82-/ ZrO2 as the catalyst for the first time, eight borneol and isoborneol ester compounds were prepared.
以冰片、异冰片、乙酸、丙酸、丁酸、异丁酸为原料，首次采用纳米固体超强酸S2O28-/ZrO2催化合成了8个冰片、异冰片酯。 - Objective: To investigate the synergistic effects of a biotic elicitor yeast extract and different abiotic elicitors ( Ag~ (+), Co~ ( 2+) and α-amino isobutyric acid) on the production of tanshinones in Salvia miltiorrhiza hairy root.
目的：考察生物诱导子yeastextract和不同非生物诱导子（Ag+，Co2+，α-氨基异丁酸）协同作用对丹参毛状根培养生产丹参酮的影响。 - Vitro fermentation experiments showed that GPF can significantly reduce pH in vitro fermentation with the inoculation of human fecal bacteria, and produce short-chain fatty acids such as acetic acid, propionic acid, butyric acid and isobutyric acid.
体外发酵试验表明，葡萄皮渣纤维可使接种人粪便提取液的体外发酵液pH值显著降低，并能产生乙酸、丙酸、丁酸和异丁酸等短链脂肪酸。