Patent ID: 9663819
Date: 2017-05-30
CPC Classifications: B01L,C12Q,G01J,G01N,Y10T

Claim:
1. A method of positioning a sample comprising an analyte for injection into a separation channel, comprising: a) providing an electrophoresis assembly comprising: b) positioning a bolus of a material downstream of said sample in said fluidic conduit, wherein said material has an electrical conductivity that differs from an electrical conductivity of electrophoresis buffer or said sample; c) moving said bolus of said material and said sample in said fluidic conduit in a direction of said separation channel; d) detecting a change in current or voltage that corresponds to a movement of said bolus of said material into said electrical path; and e) based on said change in current or voltage detected in d), moving said sample into said electrical path.