Automatic sampler and needle for the same

Details Automatic sampler and needle for the same Automatic sampler and needle for the same

2007-02-13

2007-02-13

Gordon, Brian R. (Department: 1743)

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

C073S863320, C073S864000, C604S044000, C604S187000

Reexamination Certificate

active

10056136

ABSTRACT:
The surface of a needle for collecting samples is coated with a coating material lower in chemical activity than a base metal of the needle. More specifically, the surface of the needle may be coated with a layer of gold or platinum. Alternatively, the surface of the needle may be coated with a synthetic resin coating of, for example, PEEK which is superior in chemical resistance. As a result, it is possible to obtain a practically sufficient antifouling effect even on contamination coming from chemical adsorption. Such contamination could not be removed sufficiently only by related-art measures against physical contamination. Thus, it is possible to provide an automatic sampler which can perform highly sensitive analysis.

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