Field microspot test method for on-site chemical testing

摘要

A method, system and kit for detecting the presence of an analyte includes placing a solution containing the analyte in a microcapillary tube and placing the microcapillary tube in contact with a layer of sorbent material so that the solution is withdrawn from the microcapillary tube by capillary action. The sorbent material and solvent for the solution are selected so that the solvent is absorbed into the sorbent material and the analyte is adsorbed by the sorbent material and concentrated at the spot where the microcapillary tube contacts the sorbent material. A detector reagent is applied to the sorbent material to indicate the presence of the analyte.