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    • 1. 发明授权
    • Composition and device for urinary protein assay and method of using the
same
    • 尿蛋白测定的组成和装置及其使用方法
    • US5326707A
    • 1994-07-05
    • US800272
    • 1991-11-29
    • Gunter FrankeMichael SalvatiRonald G. Sommer
    • Gunter FrankeMichael SalvatiRonald G. Sommer
    • G01N21/78C08G8/36G01N31/00G01N31/22G01N33/52G01N33/68G01N33/00
    • C08G8/36G01N33/523G01N33/6839
    • A composition, test device and method of determining the presence or concentration of proteins, such as albumin, in a liquid test sample, such as urine. The test device includes a test pad with a carrier matrix incorporating a indicator reagent composition capable of interacting with proteins to produce a detectable response. The indicator reagent composition includes an indicator dye that is capable of interacting with albumin and undergoing a detectable color transition; a buffer; a hydrophobic polymeric compound having the general structural formula: ##STR1## wherein A is ##STR2## and PO is an oxypropylene unit, EO is an oxyethylene unit, y is a number in the range of 0 to about 20, z is a number in the range of 0 to about 20, the sum y+z is a number in the range of about 2 to about 20, and R.sub.2 and R.sub.3 are selected, independently, from the group consisting of hydrogen, an alkyl group, an aralkyl group, and an aryl group;R.sub.1 is either methylene or oxygen;n is a number in the range of one to about 8; andE is hydrogen or methylol when R.sub.1 is methylene, or E is hydroxy when R.sub.1 is oxygen; and a suitable carrier which is water. The indicator reagent composition provides an improved color resolution in the test samples raving negative protein and trace amount of protein.
    • 在液体测试样品如尿液中测定蛋白质如白蛋白的存在或浓度的组合物,测试装置和方法。 测试装置包括具有载体矩阵的测试垫,其包含能够与蛋白质相互作用以产生可检测反应的指示剂组合物。 指示剂组合物包括能够与白蛋白相互作用并经历可检测的颜色转变的指示剂染料; 一个缓冲区 具有以下通式结构式的疏水性聚合物:其中A为氧化丙烯单元,PO为氧化乙烯单元,y为0至约20范围内的数,z为 0至约20范围内的数,y + z之和为约2至约20范围内的数,R2和R3独立地选自氢,烷基, 芳烷基和芳基; R1是亚甲基或氧; n是1至8的范围内的数字; 当R 1为亚甲基时,E为氢或羟甲基,或当R 1为氧时,E为羟基; 和合适的载体,它是水。 指示剂组合物在测试样品中提供改善的颜色分辨率,其具有负蛋白质和痕量的蛋白质。