پديد آورنده :
فرحمند، بهمن
عنوان :
كاربرد ريز استخراج با قطره حلال به همراه مشتق سازي داخل لوله مويينه براي اندازه گيري علف كش هاي اسيدي در نمونه هاي آبي توسط كروماتوگرافي گازي-اسپكترومتري جرمي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي تجزيه
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
پانزده، 118، [II]ص. :مصور، جدول، نمودار
يادداشت :
ص.ع. به: فارسي و انگليسي
استاد راهنما :
محمد سراجي
توصيفگر ها :
SPME , SDME , سيلوكس
تاريخ نمايه سازي :
06/03/87
استاد داور :
تقي خياميان، نوراله مير غفاري
چكيده فارسي :
به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال
چكيده انگليسي :
AbstractA single drop microextraction SDME method and gas chromatography with massspectrometry detection have been developed for the determination of acidic herbicides inwater The analytes were extracted from a 3mL sample solution using 4 L of hexylacetate After extraction derivatization was carried out inside a glass microvial 1 1mmi d using pentafluorobenzyl bromide PFBBr Triethylamine TEA was used as thereaction catalyst The influence of derivatization reagent volume catalyst amount derivatization time and temperature on the yield of the in microvial derivatization wasinvestigated Derivatization reaction was performed using 0 3 L of PFBBr and 0 4 L ofTEA 10 v v in toluene at 100 C during 5 min Also the effects of differentexperimental SDME parameters such as selection of organic solvent sample pH additionof salt extraction time and temperature of extraction were studied Analytical parameterssuch as enrichment factor precision linearity and detection limits were also determined The enrichment factors were between 83 and 157 The limits of detection LOD were inthe range 1 2 7 ng L S N 3 The relative standard deviations obtained were below10 1 n 5
استاد راهنما :
محمد سراجي
استاد داور :
تقي خياميان، نوراله مير غفاري
