| 摘要 |
The present invention relates to a device and system for the in vitro detection of blood. The device comprises a support having immobilized thereon at least one poly electrolyte reactant, such as poly acrylic acid, capable of reacting with blood, said reaction resulting in an optical change. The system comprises the device according to the invention in which the support is in communication with a detecting unit, capable of detecting a reaction resulting in an optical change between the poly electrolyte reactant and blood. The support and immobilized reactant are contacted in vitro with a sample which possibly contains blood. The reaction occurring between the reactant and blood is detected, either while the substrate is in the sample or when it is retrieved from the sample, either by eye or by the detecting unit. |
