Electrically　heated　graphite　cylindrical　electrodes　(HGCEs)　made　from　ground　pencil　leads　have　been　used　to　perform　adsorptive　stripping　square　wave　voltammetry　(SWV)　measurements　of　trace　riboflavin　(RF).　The　SWV　stripping　peak　current　was　significantly　enhanced　with　increasing　the　electrode　temperature　only　during　preconcentration　step.　This　enhancement　was　due　to　the　forced　thermal　convection　induced　by　heating　the　electrode　rather　than　the　bulk　solution.　It　is　the　thermal　convection　that　has　the　ability　to　improve　mass　transfer　and　facilitate　adsorption　thus　enhance　stripping　responses.　It　was　found　that　the　detection　limit　of　5　x　10(-9)　M　(S/N=　3)　could　be　obtained　at　an　electrode　temperature　of　72　degrees　C　during　5　min　accumulation,　more　than　one　magnitude　lower　than　that　at　22　degrees　C　(room　temperature),　the　sensitivity　could　be　enhanced　ca.　eight　or　four　folds　for　two　different　RF　concentration　ranges.　So　it　is　possible　to　develop　a　new　highly　sensitive　method　to　determine　riboflavin　at　HGCEs.　Such　HGCEs　were　also　successfully　used　to　determine　RF　in　multivitamin　tablets.