naphthoquinone

1. The reduction mechanism of quinones such as benzoquinone and naphthoquinone was studied on glucose oxidase ( GOD) modified glassy carbon electrodes, and the kinetics of reaction between the immobilized reduced GOD and the quinones in neutral buffer media was discussed.
   研究了苯醌和萘醌在南萄糖氧化酶（GOD）修饰的玻碳电极上的电化学还原机理，讨论醌在中性缓冲溶液中与固定化的还原态GOD的反应动力学。
2. Electrochemical properties of naphthoquinone derivatives
   取代萘醌的电化学性能的研究
3. The type and position of substituents affectedOWF π-π greatly for naphthoquinone and anthraquinone derivatives.
   取代基类型和取代基位置对OWF（π-π）有较大的影响，如萘醌类发色母体、蒽醌类发色母体等。
4. Study on Preparation of 2-methyl Naphthoquinone by Phase Transfer Catalytic Oxidation Process
   相转移催化氧化法制备2-甲基萘醌的研究
5. Time resolved ESR Study on the photochemical process in phenothiazine/ 1,4 naphthoquinone/ ethylene glycol system
   吩噻嗪-1,4萘醌-乙二醇体系光化学过程的时间分辨ESR研究
6. Content Determination of the Total Naphthoquinone in Oil/ Water Emulsion of Shikonin by Ultraviolet Spectrophotometry
   紫外分光光度法测定O/W型紫草脂肪乳剂中总萘醌的含量
7. The pilot scale synthesis of 2 methyl 1,4 naphthoquinone ( 2 MNQ) from 2 methyl naphthalene with Cr 6+ as oxidant by recycle electrolytic oxidation of Cr were studied.
   以2甲基萘为原料，Cr6+为氧化剂，采用Cr循环电解氧化法进行了合成2甲基1,4萘醌（2MNQ）的中试研究。
8. As the adduct between thioglycolic acid and naphthoquinone can be quantitatively removed by extraction with ether, this can be utilized for the determination of protein sulphydryl groups in presence of thioglycolic acid in excess.
   利用巯基乙酸-萘醌加合物可以被乙醚抽提去净的性貭，可以在过量巯基乙酸存在时测定蛋白貭中的巯基。
9. This paper intends to report three experimentally simple preparations of naphthoquinone, hydroquinone and the corresponding mixed quinhydrone, all redox chemistry being carried out in the solid state. It is of practical significance for the application of theory of redox in Inorganic Chemistry.
   报导了通过固体氧化还原作用以制取α-萘醌，氢醌以及对应的醌氢醌试剂，所有反应均在固体状态下进行.对拓宽氧化还原理论在无机元素化学中的应用有实际意义。
10. Compounds 2-8 are 7 blue solids identified as naphthoquinone dimers that were first separated from the plants.
    化合物2-8为七个深蓝色或绿色固体，经鉴定为萘醌类二聚体。紫草萘醌二聚体为首次从植物中分离得到。
11. The total bioactivity of naphthoquinone was stronger than volatile oil and showed differences depending on extraction methods.
    萘醌色素的整体活性比挥发油强，根据萃取方法的不同又存在一定差异。
12. Based on the study of building conjugated systems through carbon-carbon double bonds, two types of naphthoquinone colours were designed and synthesized. The effective methods to enrich colour chromatography and to improve dyeing properties were developed.
    在第四章，主要重点研究通过碳碳双键构建萘醌类共轭体系，设计和合成二种萘醌非偶氮染料，探索丰富染料色谱和改善染色性能的有效途径。
13. Vitamin K3 ( menadione), which contains two ketone groups at the 1,4-position of the naphthoquinone nucleus, might be a potential substrate of NRDR.
    维生素K3（menadione）在奈醌环的1,4号位上带有两个酮基团，有着成为NRDR底物的可能。
14. It was found that extracted lawsone and sulfonated shikonin, synthetic naphthoquinone and naphthoquinone derivatives could be used in dying wool fabrics, and the deep-dyeing, chromatic properties and color fastness were affected by some factors such as extracting methods, pigment types and parameters of dyeing process.
    指甲花醌、磺化紫草素、合成萘醌等同体及衍生物对羊毛纤维均具有一定的染色性能，但深染性、颜色特性以及染色牢度等受到提取方法、色素类型、染色工艺参数等方面的影响。
15. Mild sulfonation approach was used to enhance the solubility of shikonin extracted and naphthoquinone colours synthesized, which enable their good using in direct dyeing and mordant dyeing.
    通过温和磺化方法提高紫草素和合成萘醌色素的溶解度，以实现直接上染和媒染，没有查阅到这种萘醌磺化方法和染色应用报道。

noun

1. a fat-soluble vitamin that helps in the clotting of blood

   Synonym:    vitamin Kantihemorrhagic factor