Storage container of samples for analysis
US4871675A · kind A · utility
Inventors
Key dates
| Filing date | Aug 13, 1987 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Aug 13, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L3/502
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A storage container of samples for analysis is disclosed, having a cylindrical tube and two fittings adapted for connection with a syringe, mutual connection of containers in series, or closing and manufactured from a suitable plastic or glass. A column of sorbent is closed at both ends with a porous partition, screen, paper filter, or a layer of silicate or glass wool. The size of sorbent particles is 20-150 um (micrometers). The content of the storage container is protected during storage and/or transportation by closures from both sides. The sorbents which are packed into the storage container are selected from silica gel or organic copolymeric carriers of specific or nonspecific functional groups, which are purposefully chosen. The container finds application in general and clinical analyses, toxicology, environmental protection, agriculture, food industry, biology and biotechnologies for entrapment, storage, preparation and processing of real samples after withdrawing from a source and before the proper analytical determination. The design of the container substantially reduces the time of sample processing and the manufacturing requirements for material and labor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.