环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2014年
4期
45-47
,共3页
刘琳娟%吴鹏%於香湘%缪建军
劉琳娟%吳鵬%於香湘%繆建軍
류림연%오붕%어향상%무건군
氯苯类化合物%磁性分散固相萃取%气相色谱法%地表水
氯苯類化閤物%磁性分散固相萃取%氣相色譜法%地錶水
록분류화합물%자성분산고상췌취%기상색보법%지표수
Chlorobenzene compounds%Magnetic solid-phase extraction%Gas chromatography%Surface water
采用磁性分散固相萃取技术富集水中氯苯类化合物，用气相色谱法测定，并对萃取剂的用量、萃取时间、解吸溶剂、氯化钠加入量等条件进行优化。试验表明，方法在0．001 mg/L～2．50 mg/L 范围内，氯苯类化合物各组分线性良好，方法检出限在0．600μg/L～5．00μg/L范围内。地表水实际水样的加标回收率为83．1％～93．4％，RSD为4．8％～7．3％。
採用磁性分散固相萃取技術富集水中氯苯類化閤物，用氣相色譜法測定，併對萃取劑的用量、萃取時間、解吸溶劑、氯化鈉加入量等條件進行優化。試驗錶明，方法在0．001 mg/L～2．50 mg/L 範圍內，氯苯類化閤物各組分線性良好，方法檢齣限在0．600μg/L～5．00μg/L範圍內。地錶水實際水樣的加標迴收率為83．1％～93．4％，RSD為4．8％～7．3％。
채용자성분산고상췌취기술부집수중록분류화합물，용기상색보법측정，병대췌취제적용량、췌취시간、해흡용제、록화납가입량등조건진행우화。시험표명，방법재0．001 mg/L～2．50 mg/L 범위내，록분류화합물각조분선성량호，방법검출한재0．600μg/L～5．00μg/L범위내。지표수실제수양적가표회수솔위83．1％～93．4％，RSD위4．8％～7．3％。
Magnetic dispersive solid phase extraction technology was used for enrichment of chlorobenzenes (CBs)in environmental water sample,and gas chromatography was employed to quantitation.The experimental factors such as the amount of extraction reagent,extraction time,desorption solvent and salinity were optimized. Compared with traditional methods,the magnetic solid-phase extraction (MSPE)method simplified the operation procedure and reduced the analysis time.The Fe3 O4/C adsorbents showed high extraction efficiency.100 mg of adsorbents are required to extract CBs from 200 mL water samples.Under the optimum conditions,the recoveries of CBs were in the range of 80.5% and 93.2%,the relative standard deviations (RSDs)in the range of 4.8%~7.3% and detection limits in the range of 0.600 μg/L and 5.00 μg/L.
