Method and reagent for the enzymatic determination of enzyme substrates
First Claim
1. In a reagent for the enzymatic determination of an enzyme substrate, containing a substrate determination system including at least one enzyme, at least one buffer substance and at least one indicator substance, the improvement comprisingincluding in said reagent a defined amount of the enzyme substrate to be determined, which amount is less than the substrate determination capacity of the said system but is sufficient to react with interfering reagent ingredients.
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Abstract
The present invention provides a reagent for the enzymatic determination of an enzyme substrate, containing a system for the determination of the substrate, which comprises at least one enzyme, at least one buffer substance and at least one indicator substance and optionally contains adjuvants, wherein the reagent contains a definite amount of the enzyme substrate in an insufficient amount with regard to the substrate determination capacity of the system for the determination of this substrate.
The present invention also provides a process for the enzymatic determination of an enzyme substrate in the presence of disturbing substances which can react with the substrate itself or with an intermediate or end product of the indicator reaction, wherein, before the addition of the sample to be investigated, a definite amount of the substrate is first reacted with the reagent until reaction is complete, whereafter the sample to be determined is added.
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11 Claims
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1. In a reagent for the enzymatic determination of an enzyme substrate, containing a substrate determination system including at least one enzyme, at least one buffer substance and at least one indicator substance, the improvement comprising
including in said reagent a defined amount of the enzyme substrate to be determined, which amount is less than the substrate determination capacity of the said system but is sufficient to react with interfering reagent ingredients.
- 7. Method for the enzymatic determination of an enzyme substrate with a reagent which contains a system for determining the substrate and interfering substances which can react with the substrate or an intermediate or end product of the indicator reaction, which method comprises reacting, before the addition of the sample to be analyzed, a defined amount of the substrate with said reagent until reaction is complete, and then contacting the sample to be determined with said reagent.
Specification