Abstract: Slide for the microscopic evaluation of liquid specimens comprising a base plate, at least one evaluation chamber and a cover foil. The evaluation chambers have a specimen application zone and an evaluation area. A capillary gap is located between the evaluation zone and the cover foil. An improved slide compared to known devices was achieved by using a foil to cover the evaluation chambers and by spacers which ensure a defined thickness of the capillary gap.

Abstract: Means and method for the detection of hydrogen peroxide or of hydrogen peroxide-forming substrates, consisting of 4-aminoantipyrine and an aromatic amine or phenol and a neutral to weakly acid buffer as well as other additives and reagents which form H.sub.2 O.sub.2 with the substrate and which are known for use in Trinder's reaction, the 4-aminoantipyrine, in the immiscible state before use, being separate from the acid buffer and from the other reagents if any, and being mixed with a small amount of an alkaline buffer having a pH of 8.5 to 14.0, the two compositions being combined, in a quantity ratio to one another that is suitable for the detection test, in a single package or in a single-use unit.

Abstract: A method of differential diagnostic sperm examination and the use of prestained slides in that method comprising placing the specimen to be examined on a prestained blood-picture slide, developing the stain and examining same thereafter.