Method for detecting amine-type compounds in water and air compartments

FR3155305B1Active Publication Date: 2025-10-17COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +2
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Patent Information

Application Number
FR2023012241
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-11-09
Publication Date
2025-10-17
Estimated Expiration
2043-11-09

AI Technical Summary

Technical Problem

Current methods for detecting and quantifying hydrazine in water and air compartments are limited by their inability to selectively measure hydrazine in the presence of interferents, require complex procedures, and are not compatible with industrial practices or delayed measurements.

Method used

A detection process using a composition of reagents including a mixture of 4-(Dimethylamino)-cinnamaldehyde and sulfonic polystyrene acid, which allows for the selective detection and quantification of hydrazine and other amines like ethanolamine and morpholine, even in high concentrations, and enables measurements in both water and air compartments with delayed analysis up to 24 hours.

Benefits of technology

The process achieves selective and precise detection of hydrazine with high sensitivity, capable of handling interferent concentrations up to 200 times higher than hydrazine, and allows for both instantaneous and delayed measurements, making it suitable for industrial and environmental monitoring.

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Abstract

The present invention relates to a method for detecting at least one amine-type compound, said compound being selected from hydrazine, ethanolamine and morpholine, using a reagent composition comprising a mixture of 4-(dimethylamino)-cinnamaldehyde and polystyrene sulfonic acid, to said composition and its use.
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