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
2013年
6期
24-27
,共4页
范苓%张晓赟%秦宏兵%顾海东
範苓%張曉赟%秦宏兵%顧海東
범령%장효빈%진굉병%고해동
2-甲基异莰醇%土臭素%搅拌棒萃取%气质联用法%水质
2-甲基異莰醇%土臭素%攪拌棒萃取%氣質聯用法%水質
2-갑기이감순%토취소%교반봉췌취%기질련용법%수질
2-Methylisoborneol%Geosmin%Stir bar sorptive extraction ( SBSE )%Gas chromatography cou-pled with mass spectrometry%Water quality
采用搅拌棒萃取-热脱附/气质联用法测定水中2-甲基异莰醇和土臭素，优化了搅拌棒萃取和热脱附进样的条件。试验表明：两种目标化合物在1．00 ng/L～200 ng/L范围内线性良好，2-甲基异莰醇的相关系数为0．9993，土臭素的相关系数为0．9997，方法检出限分别为0．31 ng/L和0．15 ng/L；空白和实际样品的加标回收率为82．4％～116％，测定结果的RSD＜10％。
採用攪拌棒萃取-熱脫附/氣質聯用法測定水中2-甲基異莰醇和土臭素，優化瞭攪拌棒萃取和熱脫附進樣的條件。試驗錶明：兩種目標化閤物在1．00 ng/L～200 ng/L範圍內線性良好，2-甲基異莰醇的相關繫數為0．9993，土臭素的相關繫數為0．9997，方法檢齣限分彆為0．31 ng/L和0．15 ng/L；空白和實際樣品的加標迴收率為82．4％～116％，測定結果的RSD＜10％。
채용교반봉췌취-열탈부/기질련용법측정수중2-갑기이감순화토취소，우화료교반봉췌취화열탈부진양적조건。시험표명：량충목표화합물재1．00 ng/L～200 ng/L범위내선성량호，2-갑기이감순적상관계수위0．9993，토취소적상관계수위0．9997，방법검출한분별위0．31 ng/L화0．15 ng/L；공백화실제양품적가표회수솔위82．4％～116％，측정결과적RSD＜10％。
A method using stir bar sorptive extraction ( SBSE)-thermal desorption ( TD)/gas chromatogra-phy coupled with mass spectrometry ( GCMS) was developed to determinate ultra-trace level of 2-methylisoborneol (2-MIB) and geosmin in water .SBSE and TD parameters were optimized through blank spiked sample .The method showed good linearity ( r>0 .999 ) over concentration range from 1 ng/L to 200 ng/L and high sensitivity ( the MDL of 2-MIB and geosmin were 0 .31 ng/L and 0 .15 ng/L respectively ) .The spiked recovery of blank and real samples ranged from 82 .4%to 116%with RSD <10%.
