离子色谱法测定温泉水中多种阴阳离子*
冉 华,陈坤华,孙自刚,王恩康

(云南省地震局,昆明 650224)

离子色谱法; 阴阳离子; 温泉水; 腾冲火山区

Determination of Several Ions in Hot Spring Water by Ion Chromatography
RAN Hua,CHEN Kun-hua,SUN Zi-gang,WANG En-kang

(Earthquake Administration of Yunnan Province,Kunming 650041,Yunnan,China)

Ion Chromatography,anion and cation,hot spring water,Tengchong volcano area

备注

在用离子色谱法测定温泉水样中F-、Cl-、Br-、NO2-、NO3-、SO42-、PO42-等阴离子和Li+、Na+、K+、Mg2+、Ca2+等阳离子过程中,

Determination of inorganic anion and cation in hot spring water sample are widely used in the volcano and earthquake monitoring.To eliminate interference of HCO3- on the anion detection by using ultrasonic pump ikeuchi degassing treatment H2CO3 supersaturation water samples,the anions(F-、Cl-、Br-、NO2-、NO3-、SO42-、PO42-)and cations(Li+、Na+、K+、Mg2+、Ca2+)in the hot spring were determinated by Ion Chromatography.The content of ions in two hot spring water samples,Dieshui river and Dagunguo in Tengchong volcano area,was detected by the PIC-8 ion chromatograph with TSK-GEL ions separation column(150 mm×4.5 mm).The mixed solution of 1.9mmol/L Na2CO3-1.8mmol/L NaHCO3 was using as anion flow-phase system at a flow rate of 1.5 ml/min,and as cation flow-phase system,the solution of 2 mmol/L HNO3 was using at a flow rate of 1.0 ml/min.The method was proved to be accurate,convenient and rapid,could be widely used in the volcano and earthquake monitoring.