申请人:Miles Laboratories, Inc.
公开号:US04587220A1
公开(公告)日:1986-05-06
A composition, test means (and device) and method for determining peroxidatively active substances in a test sample are disclosed. The composition, test means (and device) and method are rendered resistant to the adverse affects of ascorbate which may be present in the sample by the inclusion in the composition of a metal chelate which is polycarboxyalkylamine derivative having the formula: ##STR1## where: (a) R.sub.1 is hydrogen or straight or branched chain alkyl alcohol or alkyl carboxylic acid radicals having from 2 to 3 carbon atoms; R.sub.2, R.sub.3, R.sub.x and R.sub.y, same or different, are straight or branched chain alkyl alcohol or alkyl carboxylic acid radicals having from 2 to 3 carbon atoms; where at least two of R.sub.1, R.sub.2, R.sub.3, R.sub.x or R.sub.y are alkyl carboxylic acid radicals so defined; (b) R.sub.p and R.sub.q, same or different, are straight or branched chain alkylene radicals having from 1 to 3 carbon atoms or divalent 1,2-cycloaliphatic radicals having from 6 to 9 carbon atoms; (c) n is an integer having a value of from 0 to 1; m is an integer having a value of from 0 to 2; where if m is greater than 0, repeated R.sub.p and repeated R.sub.q radicals may be the same or different; and (d) M is Fe.sup.+3. The composition also comprises an organic hydroperoxide and an indicator capable of providing a detectable response in the presence of peroxide and the peroxidatively active substance. The test means comprises a carrier matrix incorporated with the composition, and the method comprises immersing the test means (or device) in the test sample and observing a color or other detectable response.
本发明公开了一种用于测定测试样品中过氧化物活性物质的组合物、测试手段(和装置)和方法。该组合物、测试手段(和装置)和方法通过在组合物中包含具有以下公式的多羧基烷基胺衍生物的金属螯合物,使其对可能存在于样品中的抗坏血酸的不良影响具有抵抗力:##STR1## 其中:(a)R.sub.1为氢或直链或支链烷基醇或具有2至3个碳原子的烷基羧酸基团;R.sub.2,R.sub.3,R.sub.x和R.sub.y,相同或不同,是具有2至3个碳原子的直链或支链烷基醇或烷基羧酸基团;其中至少两个R.sub.1,R.sub.2,R.sub.3,R.sub.x或R.sub.y是如上所定义的烷基羧酸基团;(b)R.sub.p和R.sub.q,相同或不同,是具有1至3个碳原子的直链或支链亚烷基基团或具有6至9个碳原子的二价1,2-环脂肪基团;(c)n是一个整数,其值为0至1;m是一个整数,其值为0至2;如果m大于0,则重复的R.sub.p和重复的R.sub.q基团可以相同或不同;(d)M为Fe.sup.+3。该组合物还包括有机过氧化物和能够在过氧化物和过氧化物活性物质存在时提供可检测响应的指示剂。测试手段包括与组合物结合的载体基质,方法包括将测试手段(或装置)浸入测试样品中并观察颜色或其他可检测响应。