Qualitative analysis method for isopropyl hydrazine in ketazine hydrazine hydrate production system

• Main Authors: TANG LIN, SEO HYEWON, XIE HAOJIANG, LIU YINGLE, ZENG ZHAOQIN, QUAN XIAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 12.08.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a qualitative analysis method for isopropyl hydrazine in a ketazine hydrazine hydrate production system, which is characterized by comprising the following steps: S1, extracting a to-be-detected sample by using a low-polarity organic solvent extraction agent, and standing the extract to obtain an oil phase which is a concentrated to-be-detected sample; and S2, mixing the concentrated to-be-detected sample, the specific fluorescent probe and the high-polarity solvent, and carrying out qualitative analysis on the content of isopropyl hydrazine in the production system according to the occurrence rate of the fluorescence discoloration reaction. The method has the advantage that the concentration of isopropyl hydrazine in a ketazine hydrazine hydrate production system is rapidly and qualitatively analyzed. 本发明公开了一种酮连氮水合肼生产系统中异丙基肼的定性分析方法，其特征在于，包括如下步骤：S1、采用低极性有机溶剂萃取剂对待测样品进行萃取，萃取物静置所得油相即为浓缩待测样品；S2、将浓缩待测样品、特异性荧光探针以及高极性溶剂进行混合，通过荧光变色反应的发生速率来对生产系统中异丙基肼含量进行定性分析。其优点是：实现了快速定性分析酮连氮水合肼生产系统中异丙基肼的浓度。