会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 123. 发明申请
    • SINGLE PASS ATTENUATED TOTAL REFLECTION FOURIER TRANSFORM INFRARED MICROSCOPY APPARATUS AND METHOD FOR IDENTIFYING PROTEIN SECONDARY STRUCTURE, SURFACE CHARGE AND BINDING AFFINITY
    • 单通道衰减的全反射傅立叶变换红外显微镜装置和识别蛋白质二级结构,表面电荷和结合亲和力的方法
    • WO2003085422A2
    • 2003-10-16
    • PCT/US2002/028039
    • 2002-09-04
    • NORTH CAROLINA STATE UNIVERSITYFRANZEN, StefanLAPPI, Simon, E.
    • FRANZEN, StefanLAPPI, Simon, E.
    • G02B
    • G01N21/552G01N2021/3595Y10T436/14Y10T436/141111Y10T436/142222Y10T436/143333Y10T436/144444Y10T436/145555Y10T436/146666Y10T436/147777Y10T436/148888
    • Apparatus and method for acquiring an infrared spectrum of a sample having or suspected to have an amide I band, an amide II band, an amide III band, an amide A band, an OH stretching region or a combination thereof. A representative method includes providing a sample; providing an internal reflecting element (IRE) with a functionalized tip; contacting the sample with the IRE to form a sample-IRE interface; directing a beam of infrared (IR) radiation through the IRE under conditions such that the IR radiation interacts with the sample-IRE interface once; recording a reflectance profile over a range of preselected frequencies, whereby an infrared spectrum of the of a sample having or suspected of having an amide I band, an amide II band, an amide III band, an amide A band, an OH stretching region or a combination thereof, disposed in an aqueous solution is acquired. Representative apparatus includes an internal reflecting element (IRE) comprising a reflection face located on the IRE at a region of intended contact between the IRE and a solublized sample; an infrared radiation source for supplying an evanescent wave of infrared radiation and directing the same from the outside of the IRE to the inside thereof so as to cause the infrared radiation to be incident on the reflection face, wherein the infrared radiation is reflected from the reflection face once; a sample cell; a functionalized tip comprising a surface-immobilized probe that partially or completely fills the volume exposed to the evanescent wave; and a detector for detecting the once-reflected infrared radiation.
    • 用于获取具有或怀疑具有酰胺I带,酰胺II带,酰胺III带,酰胺A带,OH拉伸区域或其组合的样品的红外光谱的装置和方法。 代表性的方法包括提供样品; 提供具有功能化尖端的内部反射元件(IRE) 将样品与IRE接触以形成样品IRE界面; 在IRIR辐射与样品IRE界面相互作用的条件下,将红外线(IR)光束引导通过IRE; 在预选频率的范围内记录反射率分布,由此具有或怀疑具有酰胺I带,酰胺II带,酰胺III带,酰胺A带,OH拉伸区域的样品的红外光谱或 获得其配置在水溶液中的组合。 代表性装置包括内部反射元件(IRE),其包括反射面,所述反射面位于所述IRE上的所述IRE与所述被溶解的样品之间预期接触的区域上; 红外辐射源,用于提供红外线的ev逝波,并将其从IRE的外部引导到其内部,以使红外辐射入射到反射面上,其中红外辐射从反射反射 面对一次; 样品池; 功能化尖端,其包括部分或完全填充暴露于ev逝波的体积的表面固定的探针; 以及用于检测一次反射的红外辐射的检测器。
    • 129. 发明申请
    • METHODS AND REAGENTS FOR QUANTITATIVELY DETERMINING ASCORBIC ACID
    • 定量测定抗坏血酸的方法和试剂
    • WO98031829A1
    • 1998-07-23
    • PCT/JP1998/000196
    • 1998-01-20
    • C12Q1/26C12Q1/28G01N33/82
    • C12Q1/28C12Q1/26C12Q2326/00G01N33/82Y10T436/142222
    • A method for determining ascorbic acid by quantitatively determining ascorbic acid in a sample by using an ascorbate oxidase (hereinafter referred to as "ASOD") capable of catalyzing a reaction of ascorbic acid of reduced form with oxygen to produce ascorbic acid of oxidized form and hydrogen peroxide, characterized by simultaneously conducting a reaction of ascorbic acid of reduced form with oxygen to produce ascorbic acid of oxidized form and hydrogen peroxide and a reaction of the resultant hydrogen peroxide with a chromogen in the presence of a peroxidase to produce a dye in the same reaction system in an aqueous medium in the presence of ASOD and the formed dye quantitatively determining. A method for quantitatively determining total ascorbic acid by adding a reducing agent capable of reducing ascorbic acid of oxidized form to ascorbic acid of reduced form to the above aqueous medium to conduct an enzymatic reaction, whereby total ascorbic acid present in a low concentration can be quantitatively determined. Another method for quantitatively determining total ascorbic acid by reducing ascorbic acid of oxidized form in the sample with a reducing agent capable of reducing ascorbic acid of oxidized form to ascorbic acid of reduced form and conducting an enzymatic reaction in the presence of a compound capable of depriving the reducing agent of the reducing power. A reagent for quantitatively determining ascorbic acid and a kit for quantitatively determining ascorbic acid used for the above quantitative determination methods. The above methods can be applied also to the screening for a clinical test, can simultaneously determine a plurality of analytes, and are simple.
    • 通过使用能够用还原形式的抗坏血酸与氧反应产生氧化形式和氢的抗坏血酸的抗坏血酸氧化酶(以下称为“ASOD”)定量测定样品中的抗坏血酸来测定抗坏血酸的方法 过氧化物,其特征在于同时进行还原形式的抗坏血酸与氧的反应以产生氧化形式的抗坏血酸和过氧化氢,并且在过氧化物酶的存在下使所得过氧化氢与色原反应产生相同的染料 反应体系在水性介质中存在的ASOD和形成的染料定量测定。 通过将能够将还原形式的抗坏血酸还原形式的还原剂还原成还原剂的还原剂添加到上述水性介质中以进行酶反应来定量测定总抗坏血酸的方法,从而可以定量地存在低浓度的总抗坏血酸 决心。 另一种通过用能够将还原形式的抗坏血酸还原形式的抗坏血酸还原形式的还原性还原剂进行酶反应的方法,通过将样品中的氧化形式的抗坏血酸还原为氧化形式的抗坏血酸来定量测定总的抗坏血酸的方法, 还原剂的还原剂。 用于定量测定抗坏血酸的试剂和用于定量测定用于上述定量测定方法的抗坏血酸的试剂盒。 上述方法也可以应用于筛选临床试验,可以同时测定多种分析物,而且简单。