CAJ | 학술논문

为了高效、快速检测农田灌溉水中阴离子，建立利用离子色谱并结合固相萃取技术测定 F-、Cl-、3NO-、24SO -4种离子的方法．讨论淋洗液浓度和流量对离子保留时间和分离度的影响，并优化出最佳色谱条件．结果表明：针对此类样品，选择淋洗液浓度4.5,mmol/L Na2,CO3/0.8,mmol/L NaHCO3，流量为1,mL/min作为最优分离条件．4种离子的检出限为0.002～0.048,mg/L，精密度小于2%，回收率为93.79%～104.30%．该方法简单、可靠，适用于农田灌溉水中多种阴离子的同时测定．
위료고효、쾌속검측농전관개수중음리자，건립이용리자색보병결합고상췌취기술측정 F-、Cl-、3NO-、24SO -4충리자적방법．토론림세액농도화류량대리자보류시간화분리도적영향，병우화출최가색보조건．결과표명：침대차류양품，선택림세액농도4.5,mmol/L Na2,CO3/0.8,mmol/L NaHCO3，류량위1,mL/min작위최우분리조건．4충리자적검출한위0.002～0.048,mg/L，정밀도소우2%，회수솔위93.79%～104.30%．해방법간단、가고，괄용우농전관개수중다충음리자적동시측정．
For efficient and rapid detection of anions in irrigation water,a method for the determination of four anions, namely F-,Cl-,NO-3、SO2-4, by ion chromatography(IC)with the solid phase extraction(SPE)was established. Influences of eluent concentration and flow rate on ion retention time and resolution were discussed. Meanwhile,the chromatographic conditions were optimized as follows.The eluent is 4.5,mmol/L Na2,CO3/0.8,mmol/L NaHCO3,and the flow rate is 1,mL/min. The four anions’ detection limit is 0.002~0.048,mg/L,the precision is lower than 2%,and the recovery ranges from 93.79%to 104.30%. The method is simple,reliable and suitable for the simultaneous determination of several anions in agricultural irrigation water.