شماره ركورد كنفرانس :
580
عنوان مقاله :
DETERMINATION OF ASCORBIC ACID AT POLYNICOTINIC ACID-MWCNT MODIFIED GC ELECTRODE
عنوان به زبان ديگر :
DETERMINATION OF ASCORBIC ACID AT POLYNICOTINIC ACID-MWCNT MODIFIED GC ELECTRODE
پديدآورندگان :
Kheirabadi Fatemeh نويسنده , Arab Chamjangali Mansour نويسنده , Masdarolomoor Fatemeh نويسنده
كليدواژه :
Voltammetry , ascorbic acid , MWCNTs , poly nicotinic acid , Multi-walled carbon nanotubes
عنوان كنفرانس :
سومين همايش تكنتيك هاي نوين در شيمي و پتروشيمي نانو ايران
چكيده لاتين :
In this study a multi-walled carbon nanotube/poly nicotinic acid modified GC electrode (MWCNT/Poly-NC/GCE) was used for determination of ascorbic acid (AA) using voltammetry. The experimental parameters such as pH,concentration of nicotinic acid and MWCNTs, scan rate, pulse amplitude and ionic strength were optimised. The presence of MWCNT/Poly-NC composite on the GC electrode surface improved the sensitivity and repeatability of the measurements. The electrode showed a good linear response in the the range of ascorbic acid 20-100 μM and a detection limit of 5.5 μM at optimal conditions
شماره مدرك كنفرانس :
4456290
