پديد آورنده :
كتيرايي فر، علي
عنوان :
ساخت حسگر نوري بر پايه تثبيت 4-هيدروكسي سالوفن روي غشاء سلولز تري استات جهت اندازه گيري يونهاي جيوه [II] و سرب [II]
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي تجزيه
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
يازده، 71، [II]ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
علي اصغر انصافي
توصيفگر ها :
حسگرهاي شيميايي، نوري يوني , دستگاه هوري , تثبيت سالوفن
تاريخ نمايه سازي :
13/09/86
استاد داور :
محمد كاظم اميني، بهزاد رضايي
تاريخ ورود اطلاعات :
1396/03/07
چكيده فارسي :
به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال
چكيده انگليسي :
Abstract Optical sensors are devices which convert a chemical property to a signal These sensorscompared to electrochemical sensors are free from electrical interferences On the other hand easeof fabrication for determination of various ions in aqueous and organic samples are otheradvantages of these sensors In this work an ion optical sensor for determination of Pb II andHg II is reported 4 Hydroxy salophen immobilized on cellulose acetate film Cellulose acetatefilm had previously been subjected to a base hydrolysis and then 4 Hydroxy salophen wasimmobilized on it This film is shows a maximum absorbance peak at 388 nm The absorbancespectra of the optode membranes in Pb II and Hg II solution shown a new peak at 434 nm and429 nm respectively and this property was used as analytical criteria The effect of different parameters such as time of hydrolysis concentration of 4 Hydroxysalophen immobilization pH complexation pH and contact time were investigated under theoptimal conditions The response time of the optode thin film was 10 min for Pb II and 5 min forHg II respectively to reach 98 of final signal At optimal condition the optode has lineardynamic response range of 1 0 10 7 1 0 10 3 M of Pb II ion with detection limit of 1 0 10 7 M 0 02 ppm and 1 0 10 6 1 0 10 2 M for Hg II ion with detection limit of 5 4 10 7 M 0 1 ppm The relative standard deviation for five replicat measurements of 1 0 10 6 M and 1 0 10 5M forHg II ion was 1 6 and 2 4 respectively and for 1 0 10 6 M and 2 5 10 5 M of Pb II ion were2 1 and 3 7 respectively
استاد راهنما :
علي اصغر انصافي
استاد داور :
محمد كاظم اميني، بهزاد رضايي
