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    • 3. 发明授权
    • Process and reagent for the determination of creatinine
    • 用于测定肌酐的方法和试剂
    • US4543325A
    • 1985-09-24
    • US449925
    • 1982-12-15
    • Winfried AlbertJoachim ZiegenhornJoachim SiedelHans-Georg BatzHelmut LenzBrigitte Pautz
    • Winfried AlbertJoachim ZiegenhornJoachim SiedelHans-Georg BatzHelmut LenzBrigitte Pautz
    • G01N33/53G01N33/70C12N9/96C12Q1/34
    • G01N33/70Y10S435/81Y10S435/961Y10S436/822
    • The present invention provides a process for the immunological determination of creatinine, wherein creatinine is converted into 1-methylhydantoin, the 1-methylhydantoin formed is incubated in an aqueous medium with antibodies which are directed against a conjugate of a first hydantoin derivative of the general formula: ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which can be the same or different, are hydrogen atoms, alkyl radicals containing up to 3 carbon atoms or phenyl radicals, with a first hapten carrier substance suitable for antibody formation, reacted with a conjugate of a second hydantoin derivative of general formula (I) with a second hapten carrier substance, one of the components antibody and conjugate being present in the solid phase or in dissolved form and the other component being present in dissolved form, and the inhibition of the binding reaction between the antibodies and the hydantoin conjugate with the second hapten carrier substance is measured.The present invention also provides a reagent for the immunological determination of creatinine, wherein it contains creatinine iminohydrolase, antibodies against a conjugate of a hydantoin of the general formula: ##STR2## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which can be the same or different, are hydrogen atoms, alkyl radicals containing up to 3 carbon atoms or phenyl radicals, with a first hapten carrier substance, a conjugate of a hydantoin of general formula (I) with a second hapten carrier substance which does not cross-react substantially with the first hapten carrier substance and a buffer substance.
    • 本发明提供了一种免疫学测定肌酐的方法,其中将肌酐转化为1-甲基乙内酰脲,所形成的1-甲基乙内酰脲在水性介质中与针对通式 :其中可以相同或不同的R 1,R 2,R 3和R 4为氢原子,含有至多3个碳原子的烷基或苯基,其中第一半抗原载体物质适用于抗体 与通式(I)的第二乙内酰脲衍生物与第二半抗原载体物质的缀合物反应,抗体和缀合物之一是固相或溶解形式存在,另一种成分以溶解形式存在 并且测量了与第二半抗原载体物质的抗体和乙内酰脲缀合物之间的结合反应的抑制。 本发明还提供了一种用于免疫测定肌酐的试剂,其中含有肌酐亚氨基水解酶,针对通式如下的乙内酰脲的缀合物的抗体:其中R1,R2,R3和R4可以相同 或不同的是氢原子,含有至多3个碳原子的烷基或苯基,具有第一半抗原载体物质,通式(I)的乙内酰脲与不会基本上交叉反应的第二半抗原载体物质的缀合物 具有第一半抗原载体物质和缓冲物质。