| 1. | Synthesis of homoallyl alcohol by the reaction of allylsamarium bromide with a , - unsaturated aldehydes and ketones
不饱和醛酮反应合成高烯丙基醇 |
| 2. | Dectection of aldehydes and ketones in smoke of biomass combustion by high performance liqiud chromatography mass spectrometry
生物燃料烟气中醛酮类物质液质联用法测定 |
| 3. | A solvent - free procedure for synthesis of n - sulfonylimines catalyzed by zr 2 183 ; 4h2o sio2 solid acid under microwave irradiation
微波辐射下氨基磺酸催化合成季戊四醇双缩醛酮 |
| 4. | In this paper , the scopes of application and the limits about four aldehydie reagents were studied through some experiments
摘要通过一些试验对西夫试剂、托伦试剂、斐林试剂和本尼迪克试剂在区别醛酮中的适用范围进行了验证比较。 |
| 5. | It is produced by the reduction of fuchsin by sulfurous acid , and is oxidized by aldehydes and ketones , restoring the magenta color of the fuchsin
配法是用亚硫酸使品红溶液还原，若有醛酮类存在时便使之氧化而重新呈现品红本身的洋红色。 |
| 6. | Methods wt5bztwenty healthy male albino were intraperitoneally injected with urethane for basic anesthesia and injected with alphachloralose via ear marginal venous to maintain anesthesia , spontaneously ventilated via tracheotomy tube , with the instep record of breath and blood pressure
方法取健康雄性大耳白家兔20只，以乌拉坦腹腔注射行基础麻醉，氯醛酮耳缘静脉注射维持麻醉，气管插管置家兔于自发呼吸状态，同步记录呼吸血压。 |
| 7. | The rat 20a - hydroxysteroid dehydrogenase ( 20ahsd ) belongs to a family member of aldo - ketoreductases used nadph as a cofactor and principally converts progesterone to 20a - hydroxyprogesterone as a lower or non - active hormone . thus 20ohsd acts as a molecular switch and makes the potent progesterone hormone into an inactive potent metabolite
大鼠20 -羟类固醇脱氢酶( 20 - hydroxysteroiddehydrogenase ， 20 hsd )属于醛酮氧化还原酶系成员，在大鼠卵巢中以nadph为辅酶将孕酮转变为低或无活性的20 -羟孕酮。 |
| 8. | Reactive aldehydes from lipid peroxidation such as malonaldehyde ( mda ) , 4 - hydroxynonenal ( hne ) are responsible for the modification of different biological macromolecular structures and functions by reacting with either sh - groups or amino groups of bio - molecules to form seminercaptals or schiff bases and lead to various aging - related alterations
而我们则进一步提出这些不饱和的醛酮尤其是丙二醛( mda )与4 -羟基壬烯醛( hne )很可能是导致与疾病及衰老相关的老年色素类荧光物质的形成及血液粘度增加的内在原因之一。 |
