天津科技大学学报
天津科技大學學報
천진과기대학학보
JOURNAL OF TIANJIN UNIVERSITY OF SCIENCE & TECHNOLOGY
2014年
5期
65-68
,共4页
刘金玉%降升平%赵娟%闫仲丽
劉金玉%降升平%趙娟%閆仲麗
류금옥%강승평%조연%염중려
离子色谱%农田灌溉水%阴离子
離子色譜%農田灌溉水%陰離子
리자색보%농전관개수%음리자
ion chromatography%agricultural irrigation water%anion
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.
為瞭高效、快速檢測農田灌溉水中陰離子,建立利用離子色譜併結閤固相萃取技術測定 F-、Cl-、3NO-、24SO -4種離子的方法.討論淋洗液濃度和流量對離子保留時間和分離度的影響,併優化齣最佳色譜條件.結果錶明:針對此類樣品,選擇淋洗液濃度4.5,mmol/L Na2,CO3/0.8,mmol/L NaHCO3,流量為1,mL/min作為最優分離條件.4種離子的檢齣限為0.002~0.048,mg/L,精密度小于2%,迴收率為93.79%~104.30%.該方法簡單、可靠,適用于農田灌溉水中多種陰離子的同時測定.
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.