Apparatus for sampling for use in a continuous determination of a component in a gas mixture

Claim 1

Apparatus for continuous sampling for use in a continuous determination of a gaseous component in a gas mixture, in which apparatus at least the component to be determined is absorbed in a liquid and determination is performed on the resulting doped liquid, which apparatus comprises an absorption member to which a constant stream of sample gas and a constant stream of absorption liquid are supplied and in which the two streams are brought into contact with one another, and a passage to a liquid separator having a constant liquid level by means of a suction opening, a gas outlet being provided above the liquid level and a liquid outlet being provided below this level, whilst care is taken to ensure that at any instant the amount discharged to the liquid separator is less than the amount supplied, whilst liquid is discharged from the separator and supplied to a detector with a constant flow quantity, characterized in that the liquid separator comprises two reservoirs which communicate with another both for the gas phase and for the liquid phase, the supply conduit from the absorption member opening into one reservoir whilst the suction opening of the level-regulator is disposed in the other reservoir, to which latter reservoir a constant stream of pure solvent of the absorption liquid is supplied, the total quantity of discharged liquid to be analized being smaller than the overall supply but greater than the supply from the absorption member alone.