Element and system for collecting, transporting and storing sample material to be analyzed

US5783759A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Hans Wielinger · Weinheim, DE
• Rolf Lerch · Ilvesheim, DE
• Wolfgang Werner · Hersbruck, DE

Key dates

• Filing date: Jun 24, 1996
• Grant date: Jul 21, 1998
• Expiry date: Jun 24, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2001/2826
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed is an element for collecting, transporting and storing sample material to be analyzed containing absorptive matrix material. The element contains a first and a second layer of absorptive matrix material which are arranged side by side, next to, and touching one another on an inert support material in a contact enabling liquid transfer in such a manner that liquid can pass from the first into the second layer when the first layer is filled with liquid. The first layer can be completely separated from the second layer after applying and drying the sample material. Also disclosed is a system containing such an element and a closable envelope in which the element can be transported. In addition, the invention concerns a method for analyzing a liquid sample material in which the liquid sample material is applied to an element according to the invention, the first layer is separated from the second layer of absorptive matrix material for analysis and is subsequently eluted.