丁酸

Doped AgBr emulsion had an optimal amount with AgBr to silver stearate of 1∶4 in PTG materials.

由Zou以及Sahyun[1]等人在早期报道的，粘合剂采用溶剂型聚乙烯醇缩丁醛，卤化银采用原位法合成时的PTG材料的化学增感无效，照相速度的提高总伴随着灰雾的增加；他们认为当卤化银颗粒与羧酸银有界面存在时，传统化学增感的效果不明显；由Yamane[2]等人于近期报道的

At the same time, the molecular weightdistribution of the product is narrow Based on this novel process, weprepared a series of propanoic acid polyethers containing differentEO/PO. Their properties were determined and the effects of intermediates"sstructure on the final products" performance were obtained.

以此丁艺为基础，由不同E0、PO加成数的中间体合成了FA系列丙酸酯醚，测试了它们的各项性能指标，总结了中间体结构对产品性能的影响规律。

Methyl isobutyl ketone is a good origanic slovent and the advanced process for producing MIBK is one-step synthesis by gas-phase condensation and hydrogenation of acetone. In this process, the key technology is to develop the multi-fuctional catalyst, which has both the ability of hydrogenateon and condensation, as well as suitable acid-base sites.

甲基异丁基酮是一种优良的有机溶剂，先进的生产方法是丙酮气相缩合加氢一步法，该工艺关键的技术是开发高效的双功能催化剂，即催化剂同时具有缩合、加氢以及适宜的酸、碱性质。

The Pd-supported catalyst on MCM-22 synthesized by static method shows a higher acetone conversion than that prepared by dynamic method in one-step synthesis of methyl isobutyl ketone from acetone.

在丙酮一步法合成甲基异丁基酮反应中，静态条件下合成的MCM-22为载体的催化剂的丙酮转化率较高，这是由于该分子筛的酸量较高所致。

After the digestion of the samples of the effort of the mixed acid, in the condition of pH=2~2.8, the lead in the sample solution and the added pyrrolidine a two-ammonium thiosulfate can come into being a metal complex. With A methyl isobutyl ketone extraction, the lead complexes can be divided from the water phase.

采用混合酸对样品进行消化处理后，在pH2~2.8时，样品溶液中铅与加入的吡咯烷二硫代氨基甲酸铵形成金属络合物，用甲基异丁基甲酮萃取，使铅络合物与水相分开。

The infrared spectrogram of loaded organic phase illustrated that ethanol and butanol are Lewis bases when they act with hexanoic acid, octanoic acid, etc, and are Lewis acids when they act with TBP, etc.

利用红外光谱对萃取机理进行了探讨，证实了醇与己酸、辛酸等作用时表现出Lewis碱性，而与磷酸三丁酯等作用时表现为Lewis酸性。

The initial rate V0 was influenced by the ratio of molar concentration for butanol to hexanoic acid C(superscript 0 subscript ROH)/C(superscript 0 subscript HA)(at a range of 0.2-17). As C(superscript 0 subscript ROH)/C(superscript 0 subscript HA) decreases, especially when C(superscript 0 subscript ROH)/C(superscript 0 subscript HA), the V0 increases rapidly.

反应初始速率V0与正丁醇和正己酸摩尔浓度的比值C(上标 0 下标 ROH/C(上标 0 下标 HA)有关，在C(上标 0 ROH)/C(上标 0 下标 HA)=0.2-17范围内，随C(上标 0 下标 ROH)/C(上标 0 下标 HA)比值减小，初始速率V0增大，尤其是当C(上标 0 下标 ROH)/C(上标 0 下标 HA)时，V0迅速增大。

The esterification reaction kinetics of hexanoic acid with butanol, catalyzed by Novozym 435 lipase, was studied in water-in-oil microemulsions formed by alkyl polyglucoside C10G1.54/n-butanollcyclohexane/water buffer solution.

研究了Novozym435脂肪酶在烷基聚葡糖苷形成的W/O微乳液体系中，催化正丁醇与正己酸合成酯的反应动力学。

The relative contents of hexanal, heptaldehyde, 2-butanone, hexanoic acid, decrease in silkies on feeding stuff, The relative contents of acetaldehyde, 2-octanone decrease in silkies on feeding medlar, in primary volatile compounds.

经分析比较：枸杞园散养乌骨鸡肉中，醛类物质的相对含量最大，占48.82%，是饲料笼养的1.27倍。在主要挥发性物质中，己醛、庚醛、2-丁酮、己酸的相对含量饲料笼养乌骨鸡较枸杞园散养乌骨鸡减少，乙醛和2-辛酮的相对含量增加。

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: warfarin, estrogens, corticosteroids (e.g., prednisone, dexamethasone), quinidine, felodipine, metronidazole, doxycycline, griseofulvin, phenytoin, valproic acid, theophylline, MAO inhibitors (e.g., phenelzine, selegiline).

用药前，病人应告知医生或药剂师本人可能使用的所有处方、非处方及草药等，特别是华法林、雌激素、皮质激素、奎尼丁、非洛地平、甲硝哒唑、多西环素、灰黄霉素、苯妥英、丙戊酸、茶碱、单胺氧化酶抑制药。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。