8-(ANILINO)-1-NAPHTHALENESULFONATE ANALOGS AND THEIR USE IN ANALYTE DETECTION ASSAYS
    4.
    发明公开
    8-(ANILINO)-1-NAPHTHALENESULFONATE ANALOGS AND THEIR USE IN ANALYTE DETECTION ASSAYS 有权
    8-(苯胺基)-1-萘磺酸酯类似物及其在分析检测中的应用

    公开(公告)号:EP1224240A1

    公开(公告)日:2002-07-24

    申请号:EP00973725.5

    申请日:2000-10-17

    申请人: Lifescan, Inc.

    摘要: 8-(anilino)-1-naphthalenesulfonate (ANS) analogs and methods for their use in analyte detection assays are provided. The subject ANS analogs are characterized by having at least one non-hydrogen substituent on their phenyl moiety and producing a reaction product with 3-methyl-2-benzothiazolinone hydrazone hydrochloride (MBTH) or an analog thereof, e.g. MBTHSB, that exhibits reduced drift. In certain preferred embodiments, the subject ANS analogs are described by formula (I) wherein: n is 1 to 5; and X is a substituent other than H. The subject ANS analogs find use in a variety of applications, particularly in analyte detection assays, such as glucose detection assays.

    摘要翻译: 提供了8-(苯胺基)-1-萘磺酸盐(ANS)类似物及其用于分析物检测分析的方法。 主题ANS类似物的特征在于其苯基部分上具有至少一个非氢取代基并且产生与3-甲基-2-苯并噻唑啉酮盐酸腙(MBTH)或其类似物(例如甲基)的反应产物。 MBTHSB,表现出降低的漂移。 在某些优选的实施方案中,主题ANS类似物由式(I)描述,其中:n是1至5; 并且X是除H以外的取代基。本发明的ANS类似物可用于各种应用,特别是用于分析物检测测定,例如葡萄糖检测测定。

    METHODS AND REAGENTS FOR QUANTITATIVELY DETERMINING ASCORBIC ACID
    5.
    发明公开
    METHODS AND REAGENTS FOR QUANTITATIVELY DETERMINING ASCORBIC ACID 失效
    方法和试剂抗坏血酸的定量测定

    公开(公告)号:EP0926244A4

    公开(公告)日:2002-01-16

    申请号:EP98900440

    申请日:1998-01-20

    IPC分类号: C12Q1/26 C12Q1/28 G01N33/82

    摘要: 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.

    SOLID-PHASE PRECIPITATION ASSAY DEVICE AND METHOD
    10.
    发明公开
    SOLID-PHASE PRECIPITATION ASSAY DEVICE AND METHOD 失效
    固相沉淀分析装置和方法

    公开(公告)号:EP0539495A1

    公开(公告)日:1993-05-05

    申请号:EP91913726.0

    申请日:1991-07-15

    发明人: JONES, Ronald, M.

    IPC分类号: G01N33 B01D39 C12Q1

    摘要: Dispositif d'analyse (14) permettant de mesurer la concentration d'un analyte soluble, tel que le cholestérol associé à HDL, dans un échantillon fluide contenant des composés d'interférence tels que le cholestérol associé à LDL ou le cholestérol associé à VLDL, qui peuvent être précipités sélectivement. Le dispositif comprend une matrice de criblage (26) pouvant séparer le matériau soluble et précipité passant au travers de la matrice, et un réservoir (34) qui contient un agent de précipitation lequel est efficace, dans une plage de concentration donnée, pour précipiter sélectivement les composés d'interférence. Le réservoir est conçu pour retarder la libération de l'agent, lors du contact avec l'échantillon fluide, pour maintenir la concentration de l'agent de précipitation en contact avec l'échantillon fluide dans la plage de concentration donnée. Le dispositif comporte en outre un tampon d'analyse (64, 66, 68, 70) par lequel l'analyte soluble présent dans l'échantillon fluide peut être analysé. Un procédé de séparation de lipoprotéines très denses (HDL) de lipoprotéines de faible et de très faible densités (LDL et VLDL) utilise une matrice en fibres de verre revêtues qui inhibe la liaison de HDL comme un échantillon fluide de sang contenant HDL et LDL et VLDL précipités passent au travers de la matrice.

    摘要翻译: 分析装置(14),用于测量的可溶性分析物的浓度,例如与HDL含有例如胆固醇相关联LDL或VLDL胆固醇相关干扰化合物的流体样品中的相关联的胆固醇, 可以选择性地沉淀。 该装置包括一个筛分基体(26),该分离可溶材料和沉淀穿过基质,和一个贮存器(34),含有沉淀剂,其是有效的,一个给定的浓度范围内,用于选择性地沉淀 干扰化合物。 储器被设计成在与流体样品接触时延迟试剂的释放,以维持沉淀剂与给定浓度范围内的流体样品接触的浓度。 该装置还包括测定缓冲液(64,66,68,70),通过该测定缓冲液可以测定存在于流体样品中的可溶性分析物。 高密度脂蛋白(HDL),以低脂蛋白和极低密度(LDL和VLDL)中分离出的方法,使用涂覆的玻璃纤维的基体,其抑制HDL含有HDL和LDL和血液流体样品结合 VLDL沉淀物穿过基质。