Title:
SYSTEM FOR PREPARING LOW-CONCENTRATION GAS STANDARD MATERIAL USING ENCLOSED TYPE SYRINGE
Document Type and Number:
WIPO Patent Application WO/2018/208042
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for preparing a low-concentration gas standard material containing a very small amount of a liquid sample and having a high degree of precision and to a method for preparing a low-concentration gas standard material using the apparatus. Specifically, the present invention provides an apparatus for preparing a low-concentration gas standard material, wherein a liquid sample is injected through an enclosed type syringe such that the liquid sample can be injected with a precisely measured weight into a standard material cylinder. Furthermore, a highly precise standard material can be prepared by preventing the generation of a small amount of liquid sample residues that may be adsorbed on valves, lines, or connection portions, which are linked to processes, including a sample injection part.
Inventors:
KIM YONG DOO (KR)
BAE HYUN KIL (KR)
LEE SANGIL (KR)
OH SANG HYUB (KR)
KIM DAL HO (KR)
KIM BYUNG MOON (KR)
KANG JIHWAN (KR)
BAE HYUN KIL (KR)
LEE SANGIL (KR)
OH SANG HYUB (KR)
KIM DAL HO (KR)
KIM BYUNG MOON (KR)
KANG JIHWAN (KR)
Application Number:
PCT/KR2018/005093
Publication Date:
November 15, 2018
Filing Date:
May 02, 2018
Export Citation:
Assignee:
KOREA RES INST STANDARDS & SCI (KR)
International Classes:
G01N1/38
Foreign References:
| KR100656415B1 | 2006-12-11 | |||
| KR100838685B1 | 2008-06-16 | |||
| KR100816818B1 | 2008-03-26 | |||
| JP2006194694A | 2006-07-27 | |||
| KR20110045864A | 2011-05-04 |
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
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