查询词典 amino-isovalerianic acid

The coupling reactions of Suzuki between the transitional metal-catalyzed phenylo boric acid and benzene halide and the Suzuki-Type between phenylo boric acid and carboxylic acid derivatives are two kinds of important reactions in constructing C-C bond.

过渡金属催化的苯硼酸与卤代苯之间的Suzuki和与羧酸衍生物之间的Suzuki-Type偶联反应是构建C-C健的两种重要反应。

In conclusion, the experiment was selected four objects of study, including citric acid, malic acid iso-butyric acid and honey material.

本次试验选定柠檬酸、苹果酸、异丁酸和甜蜜素作为试验对象；选定年龄、胎次、产犊日期、体况标准和采食量相近的16头荷斯坦奶牛作为试验动物；以玉米秸秆作为试验日粮；采用四因子、两水平正交试验设计。

A method for the simultaneous analysis of 19 quinolone residues, enrofloxacin, ciprofloxacin, norfloxacin, ofloxacin, difloxacin, oxolinic acid, flumequine, sarafloxacin, sparfloxacin, danofloxacin, fleroxacin, marbofloxacin, enofloxacin, orbifloxacin, pipemidic acid, pefloxacin, lomefloxacin, cinofloxacin, and nalidixic acid in honey was developed by high performance liquid chromatography-tandem mass spectrometry. In comparison of the three different extraction methods, i.e.

建立了高效液相色谱-电喷雾串联质谱联用测定蜂蜜中恩诺沙星、环丙沙星、诺氟沙星、氧氟沙星、双氟沙星、恶喹酸、氟甲喹、沙拉沙星、司帕沙星、丹诺沙星、氟罗沙星、马波沙星、伊诺沙星、奥比沙星、吡哌酸、培氟沙星、洛美沙星、西诺沙星和萘啶酸等19种喹诺酮类药物残留的方法。

The results of acid wash with different acid concentration, reaction time and acid temperature were discussed.

主要考查了酸溶液的浓度、反应时间及酸溶液的温度等因素对灰份去除结果的影响。

Hastelloy alloy B-2 was originally developed to resist hydrochloric acid in all concentrations up to the boiling point and is used in many applications involving the production of this acid, as well as acetic acid and other chemicals.

哈氏合金B-2在沸点以下能够抵抗任何浓度的盐酸并可在包括盐酸、醋酸以及别的化学产品中使用，也可以抗硫酸及纯磷酸。

The functions of acetic acid in the acid treatment of sand stones are systematically analyzed in several aspects such as retardation,stability of ferric ions,corrosion inhibition,acid sludge resistence and buffering property etc.

从缓速性、铁离子稳定性、缓蚀性、抗酸渣性及缓冲性几个方面系统分析了乙酸在砂岩酸化中的功能。

Learn nitration ability of violet acid, preparation of violet acid, nitration operation, the separate of nitratoin production and the disposal of waste acid.

了解混酸的硝化能力及混酸配制、硝化操作，硝化产物的分离及废酸处理。

Silicon in fuel oil reacts with aminosulfonic acid and form a violet component in the medium of tartaric acid and sulfuric acid.

以氨基磺酸为显色剂，用分光光度法测定燃料油中硅含量。

Silicon in fuel oil reacts with aminosulfonic acid and form a violet component in the medium of tartaric acid and sulfuric acid. The component exhibits maximum absorption at 815nm. Beer's law is obeyed in the range of 0~250μg for silicon dioxide and linear correlation is better.

考察了测定条件：在酒石酸及硫酸介质中，最大波长位于815nm，二氧化硅浓度在0~250μg范围内符合比尔定律，线性关系较好。

Methods Anhydrous acetic acid as solvent, 0.1 mol/L perchloric acid as titrant, crystal violet solution as indicator to establish non-aqueous titrations and ODS column as stationary phase, methanol and a mixture of 0.025 mol/L sodium phosphate monobasic and 0.02 mol/L sodium dedecyl sulfate (80:20) adjusted with phosphoric acid to a pH (4.8±0.1J as mobile phase, 220 nm as detective wavelength to establish HPLC-UV method for determination of piperazinylethylestrone drug substance; FMOC-CL as a derivatization reagent, FD as a detector to establish an HPLC method with derivatization and column switching for determination of piperazinylethylestrone in dog plasma.

分别采用无水冰醋酸为溶剂，0.1mol/L高氯酸为滴定液，结晶紫指示液指示终点的非水滴定法和HPLC-UV法测定哌嗪雌酚酮原料药含量；以FMOC-CL为衍生化试剂，采用柱切换柱前衍生化萤光检测的HPLC法测定狗血浆中哌嗪雌酚酮含量。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。