A method for detecting perchlorate anions

By combining a perchlorate electrode with a potentiometer and an ionic strength modifier, the high cost and safety hazards of perchlorate detection have been solved, achieving low-cost and safe perchlorate detection. This method is suitable for rapid detection of energetic materials and has wide applicability.

CN122409800APending Publication Date: 2026-07-17NANJING UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Filing Date
2026-05-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing perchlorate detection methods suffer from high instrument costs, complex operation, and safety hazards associated with high-temperature treatment of energetic materials, limiting their widespread application in conventional laboratories and production sites.

Method used

Using a perchlorate electrode combined with a potentiometer, standard solutions are prepared and standard curves are plotted. The potential value is stabilized using an ionic strength regulator, and the potential value of the sample is directly measured, avoiding high-temperature treatment. The instrument is inexpensive and suitable for rapid detection of energetic materials.

Benefits of technology

It enables low-cost, safe, and convenient detection of perchlorate ions, is applicable to samples with different concentration ranges, has wide applicability, and is particularly suitable for quality control and safety testing of energetic materials, lowering the detection threshold and avoiding the safety risks of high-temperature processing.

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Abstract

本发明公开了一种高氯酸根阴离子的检测方法,包括以下步骤:(1)配制标准溶液,添加离子强度调节剂,混合均匀,采用高氯酸根电极连接电位计,测定电位值E;以标准溶液中高氯酸根浓度的对数lgc为横坐标,E为纵坐标,绘制标准曲线,并得到线性回归方程;(2)将待测样品溶于溶剂中,去除不溶性杂质,在测定时加入离子强度调节剂,混合均匀,测定电位值E,根据标准曲线计算得到样品的浓度;所述离子强度调节剂为磷酸二氢钾‑硫酸钠溶液、乙酸钠‑硫酸钠溶液、氯化铵‑硫酸钠溶液、硫酸铵‑硫酸钠溶液或硫代硫酸钠‑硫酸钠溶液。本发明的方法操作简单、响应线性范围宽、仪器成本低,且无需高温灼烧样品,尤其适用于含高氯酸根的含能材料。
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