Development and Utilization of Cylindrical Flow through Amperometric Cell Based on Crystallic Silver Amalgam
2011
Abstract
The single crystal of silver amalgam was used for construction of cylindrical flow through cell and applied for amperometric detection of 1,3-; 1,5- and 1,8-dinitronaphthalene mixture previously separated by conventional RP-HPLC. The developed method is applicable in whole linear concentration range 1 - 100 mol l-1 with limits of detection 1 mol l-1 and errors less than 7 % using 0.05M ammonium acetate buffer pH 4.7 with methanol (27:73) as a mobile phase at flow rate 1.5 ml min-1 and applied potential MINUS SIGN 1100 mV.