离子色谱地震观测实验研究  

Experimental Study on Ion Chromatography Seismic Observation

作　　者：张亚男 韩屹 李然 ZHANG Ya'nan;HAN Yi;LI Ran(Beijing Earthquake Agency,Beijing 100080,China)

机构地区：[1]北京市地震局,北京100080

出　　处：《四川地震》2024年第3期24-29,35,共7页Earthquake Research in Sichuan

基　　金：中国地震局“地震监测、预测、科研”三结合课题(3JH-201901074);中国地震局专项“全国地球物理台网数据跟踪分析与产出”。

摘　　要：文章以地震地下流体离子色谱观测为研究对象,通过实验分析离子色谱在日常观测数据中的影响因素。实验内容包括:色谱柱流量压力、柱温、抑制器工作电流、样品稀释浓度、样品存放时间等,同时测定了常见纯净水中离子背景值。实验结果表明:离子测定结果随柱温升高而增加;流量和压力的增加会造成离子测定数据减小;抑制电流对观测结果基本无影响;样品稀释倍数与离子观测浓度成反比;样品存放时间影响观测结果,但不同离子随样品存放时间的增加表现出不同的数据变化趋势;不同品牌纯净水离子含量差异明显,可根据观测项选择合适纯净水作为流动相。We took seismic underground fluid ion chromatography observation as the research object,and analyzed the influencing factors of data in daily observations through experimental analysis.The experimental content includes the following aspects such as chromatographic column flow pressure,column temperature,suppressor working current,sample dilution concentration,and sample storage time.We measured the ion background value in common pure water.The experimental results show that the ion determination increase with the enhancement of the column temperature.The increasement in the flow rate and pressure could cause decrease in ion measurement data.Suppressing current has little effect on the observation results.The dilution ratio of the sample is inversely proportional to the observed ion concentration.The storage time of samples affects the observation results,where is different in ions exhibit data that trends with the increasement of sample storage time.Different brands of purified water have a significant influence in ion content.Therefore,suitable purified water can be selected as the mobile phase based on the observation items.

关 键 词：地震监测 地下流体 离子色谱 实验研究 

分 类 号：P315.7[天文地球—地震学]