Merck Patent Gmbh

Berthold Wagner

Gerhard Wieland

Peter Mueller

Norbert Stork

Horst Langkau

Stefan Bernhard

Stefanie Beil-Seidler

Daniel Rupprecht

A container () for a plurality of test strips, in particular for strip-shaped indicator sticks, has a housing lower part () and a housing upper part (), which can be brought into engagement with the housing lower part () in a positive manner, where the housing upper part () has an opening with a sealing flap () mounted in a pivotable manner, where the housing lower part () has a plurality of projecting snap-in elements (), which can be brought into engagement with matched recesses () of the housing upper part (), and where the sealing flap () is connected along its periphery to the housing upper part () by means of at least one connecting strip which can be torn off. The snap-in elements () project by more than one wall thickness of the housing upper part () in the region around the recesses (). The sealing flap () preferably has a tear-off connecting strip on each of two opposite sides. The sealing flap () is preferably mounted in a pivotable manner on the housing lid () of the housing upper part () and forms a corner () of the housing upper part (). The length of the sealing flap () along the housing lid () is preferably less than the length of the sealing flap () along the side wall () of the housing upper part ().

Container for a plurality of test strips

The present invention relates to a composition and a method for the determination of furfurals, in particular the chemical signal substances 5-(hydroxymethyl)furan-2-carbaldehyde (hydroxymethylfurfural, HMF) and furan-2-carbaldehyde (furfural). The determination according to the invention is based on a liquid- or dry-chemical test using barbituric acid derivatives and 4-aminophenazone derivatives.

Agent and method for identifying furfurals

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Frankfurt am Main, Germany

Berthold Wagner