水资源与水工程学报

柳玲, 郑海, 高晓庆, 王艺桦, 贾娟丽.离子色谱法同时测定地下水中多种阴离子含量的研究水资源与水工程学报[J].,2014,25(3):237-240

离子色谱法同时测定地下水中多种阴离子含量的研究

Study on measuring anions content in underground water by use of ion-chromatography

DOI：10.11705/j.issn.1672-643X.2014.03.049

英文关键词:method of ion-chromatography anion groundwater

基金项目:陕西省科技统筹创新工程计划项目渭河水污染防治关键技术研究示范纵向科研项目（2011KTZB03-03）

作者	单位
柳玲¹, 郑海², 高晓庆¹, 王艺桦³, 贾娟丽³	（1.陕西省环境科学研究院，陕西西安 710061； 2.环境保护部西北环境保护督查中心，陕西西安 710054； 3.杨凌示范区环境监测站，陕西杨凌 712100）

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中文摘要:

为准确地测定地下水中阴离子含量，采用离子色谱法测定地下水样品中常见阴离子含量，并对色谱条件进行了优化。最佳色谱条件为：ICS-1500离子色谱仪SA_23-25阴离子分离柱，ASRA自身再生抑制器，以4.5 mmol/LNa₂CO₃和8.0 mmol/L NaHCO₃为淋洗液，流速为1.0 mL/min，检测器为抑制电导检测器，对地下水中F、Cl、NO₃、PO₄^3-和SO_{4_{^2-进行监测。三个点位水样中除PO₄^3-未检出之外，其他均检出，但未超出标准浓度限值。本方法相关性好（r>0.999），检出限低（0.02~0.12 mg/L），精密度高(RSD为0.33%~3.07%)。建立了离子色谱法同时测定地下水中阴离子的方法。}}

英文摘要:

The aim is to determine anion content of groundwater, the ion-chromatography method was taken to detect common anion content in the sample of groundwater. The chromatographic condition was optimized. The optimum chromatographic condition is that ICS-1500 ion-chromatograph, SA_23-25 anion partition column and ASRA renewable suppressor are used with 4.5mmol/L Na₂CO₃ and 8.0 mmol/L NaHCO₃ as eluent solution at 1.0 ml/min flow rate, using inhibitory electrical conductivity detector to detect 5 anions such as F^-, Cl^-, NO^-₃, PO₄^3- and SO₄^2- in groundwater sample. 4 anions were detected in water sample at three sites except PO₄^3-, but the concentration value is in the field of standard. The method has good correlation（r>0.999）.The low detection limit is 0.02~0.12 mg/L,the accuracy is high (RSD 0.33%~3.07%). The paper set up the method which measures anions in groundwater with ion-chromatography in the meantime.

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