Patent ID: 8092744
Filing Date: 2012-01-10
Classification: G01N

Abstract:
1. An analytical chemical sampling apparatus, comprising: (a) a system controller programmed to output a plurality of control signals, and to receive at least one input sensing signal; (b) a source of gas, which provides a first gas; (c) a gas flow control valve that is controlled by a first control signal of said plurality of control signals output by said system controller, said gas flow control valve having a first fluidic inlet and a first fluidic outlet which, under control of said first control signal, acts to pass a gas flow therethrough, said first fluidic inlet being in fluidic communication with said source of gas and receiving said first gas, said first fluidic outlet dispensing a second gas when required by said first control signal; (d) a plurality of fluidic control devices and a plurality of fluidic passages which fluidically connect said plurality of fluidic control devices, said second gas being directed into said plurality of fluidic control devices and a plurality of fluidic passages; and (e) a sparge vessel having a purge portion and a sample portion,