Method of forming a needle for auto-sampler
US7337654B2 · kind B2 · utility
8Cited by
0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2007 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jan 3, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49982
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.