Abstract: A programmed fluid sampling and analysis apparatus and method includes apparatus for the programmer controlled sampling of a fluid stream in order to subject the fluid sample to an automated analysis of the ion or molecular concentrations of the chemicals of the sampled fluid. The sampled stream and appropriate reagents are impelled by a gas through the apparatus according to a program so that the sample fluid and reagents ultimately mix in a vessel wherein the mixtures are analyzed by a colorimeter or by specific element-ion sensitive probes connected to electronic amplifying and recording equipment. A programmed analysis of the sensor output is provided on a strip chart recorder. The apparatus includes a fluid sampling and transport device for delivering an aliquot of sampled fluid to a reaction chamber under the influence of a programmed pulse of compressed air. An aliquot of one or more reagents is similarly provided to the reaction chamber from a reagent sampling and transport device.