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skos:definition |
SPN: A general purpose reagent is a chemical reagent that has general laboratory application, that is used to collect, prepare, and examine specimens from the human body for diagnostic histopathology, cytology, and hematology, and that is not labeled or otherwise intended for a specific diagnostic application. General purpose reagents include cytological preservatives, decalcifying reagents, fixatives and adhesives, tissue processing reagents, isotonic solutions, and pH buffers.,UMD: Reagents used as a medium for mounting and long-term preservation of previously stained slides. These reagents must have optical and physical properties to avoid tissue alterations that cause image distortion or color fading during storage and optical or microscopic examination. Mounting media frequently consist of synthetic resins.
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