METHOD AND APPARATUS FOR SAMPLING

摘要

There is provided a method and apparatus for sampling a viscous liquid by aspiration of such liquid from a container in an off-take tube of a probe insertable in the container. A reagent having the characteristic of a solvent is added to the sample to dilute it within the probe after a relatively short distance of travel of the sample within the probe. The reagent is fed into the probe at a first predetermined flow rate and the admixture is aspirated at a second predetermined flow rate which is faster so that the sample is aspirated at a rate determined by the difference between the first and second flow rates.