Method of analyzing 5-hydroxyindoles and catecholamines, and a d

Chemistry: analytical and immunological testing – Nitrogen containing – Amine and quaternary ammonium

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436 63, 436 89, 436 91, 436 96, 436106, 436131, 436161, 436164, 436166, 436172, 436174, 422 52, 422 69, 422 70, 422 81, 422 8205, G01N 3348, G01N 2176, G01N 3002

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058245596

ABSTRACT:
A method and a device for the analysis of 5-hydroxyindoles or catecholamines with high sensitivity. New chemiluminescence labeling agents, 6-aminomethylphthalhydrazide or 1,2-bis(phthalhydrazino)ethylenediamine, are reacted with 5-hydroxyindoles or catecholamines to form their stable derivatives. The derivatives emit strong luminescence in the presence of an oxidizing agent. In the chemiluminescence detection method, there is extremely low background noise and thus the method enables analysis with high sensitivity. The analysis of 5-hydroxyindoles or catecholamines in a sample is enabled by a method (1), in which each of the above-mentioned components is separated, reacted with said chemiluminescence labeling agent to form its derivative, and then chemiluminescent emitted by the reaction of the derivative with an oxidizing agent is detected, or by another method (2), in which the mixture of 5-hydroxyindoles or catecholamines in a sample is reacted with the chemiluminescence labeling agent to form its derivative mixture, subsequently each derivative is separated, and then chemiluminescent emitted by the reaction of the derivative with an oxidizing agent is detected.

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