Results and discussion
3.1. Lab on a chip analysis of explosive standards
The separations of the explosives in the microchip were performed by micellar electrokinetic chromatography (MEKC), in which the addition of a surfactant to the electrolyte formed micelles to act as a pseudo stationary phase to allow the separation of neutral molecules [17]. A background electrolyte of 10 mM sodium tetraborate, 50 mM SDS, and 2% v/v of the DNA dye produced consis-tent baselines across all standard and sample runs. The explosivesappeared as negative peaks in each of the electropherograms dueto fluorescence quenching