Self-propelled sensor apparatus for in situ analysis of enviromental parameters

A method of analyzing a component contained in a fluid medium using a self-propelled apparatus, the method comprising:

• providing a self-propelled apparatus comprising:
• an analytical system comprising
• a fluid inlet to receive fluid from the fluid medium,
• a fluid outlet connected to the fluid inlet via a fluid conduit that defines a fluid pathway, wherein the fluid outlet dispels at least a portion of the fluid medium received by the fluid inlet,
• an analysis chamber connected to the fluid conduit, positioned intermediate to the fluid inlet and the fluid outlet in the fluid pathway,
• a reagent system located within the analysis chamber to isolate the component, and
• a sensor system positioned within the analysis chamber and in communication with the fluid pathway to sense the component;
• and
• a conveyance system to move the analytical system through the fluid medium and facilitate fluid flow through the fluid conduit;
• introducing the analytical system into the fluid medium to permit the flow of the fluid medium through the analytical system;
• and
• recording data on the component contained in the fluid medium using the sensor system.