Method of forming a needle for auto-sampler

Details Method of forming a needle for auto-sampler Method of forming a needle for auto-sampler

2007-01-03

2008-03-04

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

C073S061550

Reexamination Certificate

active

07337654

ABSTRACT:
In a method of forming a needle for an auto-sampler successively collecting liquid samples from plural sample containers, a parent material forming the needle is coated with a coating material having a chemical activity small than that of the needle. Then, the coated parent material is polished so that the surface has an average roughness of 10 to 20 nm.

REFERENCES:
patent: 2002/0102185 (2002-08-01), Tatsumi
patent: 2003/0189053 (2003-10-01), Felbaum
patent: 2006/0049056 (2006-03-01), Wang et al.

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