环境监控与预警
環境鑑控與預警
배경감공여예경
ENVIRONMENTAL MONITORING AND FOREWARNING
2015年
4期
31-33,46
,共4页
孙娟%俞美香%朱蕾%邱展辰%柏松
孫娟%俞美香%硃蕾%邱展辰%柏鬆
손연%유미향%주뢰%구전신%백송
搅拌式萃取%污水%红外分光光度法%石油类
攪拌式萃取%汙水%紅外分光光度法%石油類
교반식췌취%오수%홍외분광광도법%석유류
Stirring extraction%Sewage%Infrared spectrophotometry%Petroleum oil
以四氯化碳为萃取溶剂，自动搅拌萃取污水样品中的总油，有机相经硅酸镁吸附脱除极性物质后，选择红外分光光度法测定其中的石油类，方法检出限为0．024 mg／L；对实际水样进行4个质量浓度水平的加标回收试验，回收率在88．0％～108％之间，6次测定的相对标准偏差为2．9％～6．1％，满足污水中石油类的测试要求。
以四氯化碳為萃取溶劑，自動攪拌萃取汙水樣品中的總油，有機相經硅痠鎂吸附脫除極性物質後，選擇紅外分光光度法測定其中的石油類，方法檢齣限為0．024 mg／L；對實際水樣進行4箇質量濃度水平的加標迴收試驗，迴收率在88．0％～108％之間，6次測定的相對標準偏差為2．9％～6．1％，滿足汙水中石油類的測試要求。
이사록화탄위췌취용제，자동교반췌취오수양품중적총유，유궤상경규산미흡부탈제겁성물질후，선택홍외분광광도법측정기중적석유류，방법검출한위0．024 mg／L；대실제수양진행4개질량농도수평적가표회수시험，회수솔재88．0％～108％지간，6차측정적상대표준편차위2．9％～6．1％，만족오수중석유류적측시요구。
The total oil in sewage samples were completely extracted by carbon tetrachloride when the frequency and time of stirring extraction had been accurately controlled by an automatic agitator.Then the polar substances in the organic phase were completely adsorbed and removed by magnesium silicate adsorbent.The petroleum oil was accurately determined by infrared spectrophotometry. The method detection limit was 0.018 mg/L.The recoveries of the target compounds ranged from 88.0%to 108%and the relative standard deviations were between 2.9%and 6.1%.This method could meet the requirements for the determination of petroleum oil in sewage.
