萘醌
- 名naphthoquinone
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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。
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 .
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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。
The type and position of substituents affectedOWF π - π greatly for naphthoquinone and anthraquinone derivatives .
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含C(16)长碳链1,2-邻二萘醌-2-肟钌(Ⅱ)配合物的合成
Synthesis of Ruthenium (ⅱ) 1,2-Naphthoquinone-2-oxime Complexes Containing C _ ( 16 ) Long Alkyl Chain
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以二甲胺为显色剂分光光度法测定甲萘醌和维生素K3
Spectrophotometric Determination of menadione and vitamin k_3 using dimethylamine as chromophoric reagent
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K系维生素中间体β-甲基萘醌合成的研究进展
Progress on Synthesis of K-series vitamins intermediates & 2-methyl-1,4-naphthoquinone
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2-羟基-1,4-萘醌光系统II抑制剂和三唑杀菌剂环境定量构效关系研究
Environmental Quantitative Structure-Activity Relationship Studies on 2-Hydroxy-1,4-Naphthoquinones as Inhibitors of PSII and Triazole Fungicides
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VK系列中间体2-甲基萘醌的制备
The Preparation of V_K Intermediate 2-methyl-1,4-naphthoquinone
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结果表明,添加甲萘醌有助于促进CAT的合成。
The experimental results indicate that addition of menadione helps to the accumulation of CAT .
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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
Time resolved ESR Study on the photochemical process in phenothiazine / 1,4 naphthoquinone / ethylene glycol system
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制备2-甲基萘醌时废液中Cr和CH3COOH的测定
Determination of Cr and CH_3COOH in Waste Liquid of Preparation of 2-methyl-1,4-naphthoquinone
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本文基于维生素K3(亚硫酸氢钠甲萘醌)或甲萘醌在碱性介质中与氨基硫脲生成紫色化合物的反应。
The method was based on the reaction of the vitamin K_3 ( menadione sodium bisulfite ) or menadione with thiosemicarbazide to form an violet compound in alkaline medium .
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利用保留时间、UV光谱和质谱在没有任何标样的情况下可以确认泛醌和甲基萘醌的成分。
The compositions of ubiquinone and menaquinone were determined directly using combined information of retention time , UV spectrum and mass spectrum without any standard samples .
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结构和热分析研究环戊二烯-甲萘醌加合物的逆Diels-Alder反应
Retro-Diels-Alder Reaction of Cyclopentadiene-Menadione Adduct by Structural and Thermal Analysis
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方法紫草萘醌醇提取物制备成微乳液(LE);加入人肝癌细胞系、人胚肾细胞系和小鼠成纤维细胞系的体外培养,MTT法检测细胞增殖;
Methods LE micro emulsion lotion was prepared and added into human hepatoma cells , human embryo kidney cells and mice fibroblast cultured in vitro to detect cellular proliferation by MTT .
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对于两者而言,胡桃醌的药效低于其衍生物5,8-二羟基-1,4-萘醌。抑制孢子萌发试验表明:两种药剂对玉米小斑病菌孢子萌发的抑制率最高,在12.5mg/L时高于60%;
The effect of Juglone was under than 5 , 8-dihydroxy-1 , 4-naphthoquinone .
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研究了Cu2+和5,8-二羟基-1,4-萘醌(Naph)的络合显色反应。
A complex chromogenic reaction of Cu2 + and 5 , 8-dihydroxy-1 , 4-na phthoquinone ( Naph ) has been studied .
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目的探讨半合成紫草萘醌化合物SYUNZ-4对U937细胞的诱导凋亡作用及机制。
Objective To investigate apoptotic effect of SYUNZ-4 on U937 cells , and its molecular mechanism .
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研究了1,2-萘醌(NQ)和1,2-萘醌-4-磺酸钠(NQS)被355nm激光脉冲辐照后在乙腈(苯)溶剂中的瞬态吸收光谱和动力学参数。
Transient absorption spectra and corresponding dynamic parameters of triplets NQ and NQS in acetonitrile ( benzene ) were studied .
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所制备乳剂中紫草总萘醌的含量为0.69mg/mL。
The content of total naphthoquinones in emulsion are 0.69mg/mL .
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结论选择95%乙醇,超声处理40min为紫草中羟基萘醌总色素的最佳含量测定方法。
Conclusion The optimal method of determing content is to chose 95 % alcohol and process for 40 min with ultrasound .
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以亚硫酸氢钠甲萘醌(MSB)和烟酰胺为原料,在常温下合成了稳定型维生素K3(MNB)并对影响反应的因素进行了考察。
Using menadione sodium bisulfite ( MSB ) and nicotinamide as raw materials , effects of reaction conditions on synthesis of menadione nicotinamide bisulfite ( MNB ) at room temperature were investigated .
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在最佳反应条件下做出帕珠沙星与1,2-萘醌-4-磺酸钠(NQS)反应的线性方程,实现对药物制剂中帕珠沙星含量的测定。
Under the optimum reaction conditions the author makes Pazufloxacin with 1,2-naphthoquinone - 4-sulfonate ( NQS ) reaction of linear equations to achieve the drug preparations Pazufloxacin the determination .
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萘醌与巯基化合物如巯基乙酸、乙硫醇和谷胱甘肽等有当量加成关系。加合物在波长420mμ左右有一吸收峯。
The absorption spectra of the adducts between 1,4-naphthoquinone and sulphydryl compounds such as thioglycolic acid , ethyl mercaptan , glutathione and the sulphydryl form of several proteins have been found to show maxima near 420m μ .
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晶体结构分析显示环戊二烯-甲萘醌加合物的C4-C14键被它的角甲基空间效应所弱化,热分析(TG-DSC)研究显示在130℃该加合物的逆Diels-Alder反应趋势得到加强。
Experimental results show that C4-C14 bond of cyclopentadiene-menadione adduct is weakened by the steric effect of its angular methyl group through the crystal structural analysis . Consequently , the retro-Diels-Alder tendency of the adduct is enhanced at 130 ℃ through thermal analysis ( TG-DSC ) .
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紫草萘醌类化合物对乳酸脱氢酶和乙醇脱氢酶的共价修饰作用
Covalent Modification of Lactate Dehydrogenase and Alcohol Dehydrogenase by Alkannin Derivatives
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1,2-萘醌-4-磺酸钠分光光度法测定药品中赖氨酸
Spectrophotometric Determination of Lysine in Drugs with 1,2-Naphthoquinone-4-Sulfonate as Colour Reagent
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酚醛-重氮萘醌正性抗蚀剂溶解抑制机理
Dissolution inhibition mechanisms of positive photoresist based on novolak - dnq
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测定2-重氮-1萘醌-5-磺酰氯的含量
The Content of 2 diazo 1 Naphthoquinones 5 Sulfonyl Chloride is Determined
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一:简单介绍了萘醌类化合物的分类及常用合成方法。
The classification , synthetic of naphthoquinones were introduced briefly .
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紫草萘醌色素微乳液抑制肝癌细胞增殖的实验研究
Experimental study of hepatoma carcinoma cell proliferation inhibited by lithospermi naphthoquinol extracts