摘要:
The present invention provides a method for accurately measuring the quantity of a target substance in urine samples or diluted urine samples in immunological measurement of urine components, as well as a reagent for use therein. The reagent of the present invention (e.g. standard solution, diluting solution or reaction reagent) for immunological measurement of urine components comprises at least one substance selected from the group consisting of urea, potassium thiocyanate, guanidinium hydrochloride, imidazole, hydantoin, hippuric acid and sodium urate. Using these reagents makes it possible to more accurately perform immunological measurement of urine components than in the past.
摘要:
PROBLEM TO BE SOLVED: To provide a useful antibody for measuring activity of von Willebrand factor (VWF) nicking enzyme (ADAMTS13), in particular, a monoclonal antibody and a method for measuring ADAMTS13 activity.SOLUTION: There are provided a monoclonal antibody which has specific reactivity to an antigenic determinant site having a specific amino acid sequence, but has no specific reactivity to the complete VWF molecule, produced by reacting ADAMTS13 with VWF that is a substrate or a partial peptide of VWF that is a potential substrate, and a method for measuring ADAMTS13 activity using the antibody.
摘要:
PROBLEM TO BE SOLVED: To provide a method for maintaining the reactivity of fine particles bonded with a reactive substance dispersion liquid for a long period of time by stabilizing the fine particles in the dispersion liquid of the fine particles bonded with a reactive substance. SOLUTION: The present invention provides a stabilization method for the fine particles bonded with a reactive substance, and the method includes a step of letting a sulfur-containing amino acid or a derivative thereof to coexist in the dispersion liquid of the fine particles. The preferable sulfur-containing amino acid includes cysteine, cystine and methionine. The method is particularly useful when a sedimentation suppressing substance such as a polyanion and dextran coexists in the dispersion liquid. COPYRIGHT: (C)2010,JPO&INPIT