化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2014年
z1期
43-45
,共3页
垃圾渗滤液%离子色谱%活性炭吸附%固相萃取
垃圾滲濾液%離子色譜%活性炭吸附%固相萃取
랄급삼려액%리자색보%활성탄흡부%고상췌취
landfill leachate water%ion chromatography%activated carbon adsorption%solid phase extraction
建立了活性炭吸附–固相萃取–离子色谱法快速测定垃圾渗滤液中F–,Cl-,NO3–,PO43–,SO42–5种阴离子的方法。100 mL样品先经10 g预先洗涤烘干的活性炭吸附,然后通过吸附特性不同的ENVI–18(C18小柱)、PSA固相萃取小柱。利用C18小柱对水中有机污染物的萃取及键合相有双齿配体的PSA小柱对金属离子的螯合,除去渗滤液中大量的有机物和重金属,再经离子色谱检测。5种离子的质量浓度在1~10 mg/L范围内与其色谱峰面积呈良好的线性关系,线性相关系数大于0.999,F–,Cl-,NO3–,PO43–,SO42–的检出限分别为0.02,0.02,0.08,0.15,0.09 mg/L。5种离子的平均加标回收率为96%~105%,测定结果的相对标准偏差小于6%(n=6)。该方法简便快捷,测定结果准确可靠,可用于垃圾渗滤液中F–,Cl-,NO3–,PO43–,SO42–5种阴离子的测定。
建立瞭活性炭吸附–固相萃取–離子色譜法快速測定垃圾滲濾液中F–,Cl-,NO3–,PO43–,SO42–5種陰離子的方法。100 mL樣品先經10 g預先洗滌烘榦的活性炭吸附,然後通過吸附特性不同的ENVI–18(C18小柱)、PSA固相萃取小柱。利用C18小柱對水中有機汙染物的萃取及鍵閤相有雙齒配體的PSA小柱對金屬離子的螯閤,除去滲濾液中大量的有機物和重金屬,再經離子色譜檢測。5種離子的質量濃度在1~10 mg/L範圍內與其色譜峰麵積呈良好的線性關繫,線性相關繫數大于0.999,F–,Cl-,NO3–,PO43–,SO42–的檢齣限分彆為0.02,0.02,0.08,0.15,0.09 mg/L。5種離子的平均加標迴收率為96%~105%,測定結果的相對標準偏差小于6%(n=6)。該方法簡便快捷,測定結果準確可靠,可用于垃圾滲濾液中F–,Cl-,NO3–,PO43–,SO42–5種陰離子的測定。
건립료활성탄흡부–고상췌취–리자색보법쾌속측정랄급삼려액중F–,Cl-,NO3–,PO43–,SO42–5충음리자적방법。100 mL양품선경10 g예선세조홍간적활성탄흡부,연후통과흡부특성불동적ENVI–18(C18소주)、PSA고상췌취소주。이용C18소주대수중유궤오염물적췌취급건합상유쌍치배체적PSA소주대금속리자적오합,제거삼려액중대량적유궤물화중금속,재경리자색보검측。5충리자적질량농도재1~10 mg/L범위내여기색보봉면적정량호적선성관계,선성상관계수대우0.999,F–,Cl-,NO3–,PO43–,SO42–적검출한분별위0.02,0.02,0.08,0.15,0.09 mg/L。5충리자적평균가표회수솔위96%~105%,측정결과적상대표준편차소우6%(n=6)。해방법간편쾌첩,측정결과준학가고,가용우랄급삼려액중F–,Cl-,NO3–,PO43–,SO42–5충음리자적측정。
A method based on activated carbon adsorption–solid phase extraction–ion chromatography for the determination of anions (F–,Cl–,NO3–,PO43–,SO42–) in landfill leachate water was developed. 100 mL landfill leachate water was enriched by 10 g activated carbon, two different kinds of solid phase extraction column: ENVI–18 and PSA. After the pretreatment,much of the organic matter and high heavy metal content have been removed. Then the sample was analyzed by ion chromatography. The concentration offive aions had good linear relationship with the chromatography peak area in the range of 1–10 mg/L. The recoveries were 96%–105%,with coefficients of variation below 5%(n=6). The method is simple,reliable and suitable for determining anions in landfill leachate water.