| 摘要 |
PROBLEM TO BE SOLVED: To provide an underwater sampling device capable of preventing adsorption or deposition of a measuring object material on a pump, a pipe or the like relative to the device for gathering a trace constituent in water, and gathering a large volume of sample water at an optional gathering spot, easily while performing concentration treatment by direct filtration and/or adsorption. SOLUTION: This underwater sampling device comprises the pump 6 equipped with a float 11 for floating on the water surface, and a sampling vessel 3 storing a filter 1 and/or an adsorbent 2 for collecting an objective component. In the device, a sample water discharge port 5 of the sampling vessel 3 is connected detachably to a suction port 6a of the pump 6, and the sample water under the water surface is sucked continuously from a sample water gathering port 4 of the vessel 3, to thereby gather the trace constituent.
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