کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6327182 | 1619765 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Micro versus macro solid phase extraction for monitoring water contaminants: A preliminary study using trihalomethanes
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کلمات کلیدی
DBPDBCMTBMBDCMHASHAAsTCMMicro solid phase extractionSPETrihalomethanesTHMsHaloacetonitrilestribromomethaneHKsLLEWWTPμECDWater - آبSolid phase extraction - استخراج فاز جامدLiquid–liquid extraction - استخراج مایع مایعHaloacetic acids - اسیدهای هالوسیتیکBromodichloromethane - برومودیکلورمتانTrichloromethane - ترشیکلرومتانWastewater treatment plant - تصفیه خانه فاضلاب Dibromochloromethane - دیروروکلرومتانElectron capture detection - شناسایی ضبط الکترونDisinfection by-product - ضدعفونی کننده های جانبیHaloacetaldehydes - هالوآکتالدئید هاhaloketones - هالوکوتون هاHans - هانسhigh-performance liquid chromatography - کروماتوگرافی مایعی کاراHPLC - کروماتوگرافی مایعی کارا
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Solid phase extraction is one of the most commonly used pre-concentration and cleanup steps in environmental science. However, traditional methods need electrically powered pumps, can use large volumes of solvent (if multiple samples are run), and require several hours to filter a sample. Additionally, if the cartridge is open to the air volatile compounds may be lost and sample integrity compromised. In contrast, micro cartridge based solid phase extraction can be completed in less than 2Â min by hand, uses only microlitres of solvent and provides comparable concentration factors to established methods. It is also an enclosed system so volatile components are not lost. The sample can also be eluted directly into a detector (e.g. a mass spectrometer) if required. However, the technology is new and has not been much used for environmental analysis. In this study we compare traditional (macro) and the new micro solid phase extraction for the analysis of four common volatile trihalomethanes (trichloromethane, bromodichloromethane, dibromochloromethane and tribromomethane). The results demonstrate that micro solid phase extraction is faster and cheaper than traditional methods with similar recovery rates for the target compounds. This method shows potential for further development in a range of applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volumes 512â513, 15 April 2015, Pages 210-214
Journal: Science of The Total Environment - Volumes 512â513, 15 April 2015, Pages 210-214
نویسندگان
Lydon D. Alexandrou, Michelle J.S. Spencer, Paul D. Morrison, Barry J. Meehan, Oliver A.H. Jones,