short dated tender - bids are invited for photocatalytic reactor , high current interface module , rotating ring disk eletorde setup rrde , h cell spearator with membrane holder 200 ml , electochemical cell system including 2 mm diameter platinum working elctrode , electochemical cell system including gc electrode , electochemical cell system including reference electrode ag agc1 , electochemical cell system including reference electrode ag non aqueous , electochemical cell system including platinum wire counter electrode , electochemical cell system including sce calomel reference electrode , electochemical cell system including electrode polishing kit