The Formalin Cup is a medical diagnostic tool used primarily to detect albuminuria , which can indicate kidney dysfunction. It is most widely used to hold formalin (37-40% formaldehyde solution) for performing the formalin test for albumin in urine.
一．Main Uses
1. Formalin cups can be used for urine protein qualitative testing (traditional method): formalin reacts with protein in urine to form a white precipitate.
2. Formalin cups can be used for small sample fixation: e.g. short-term preservation of biopsy tissue, parasite specimens.
二．Characteristics of formalin cups
- Corrosion resistance: need to be able to resist the strong chemical properties of formalin (commonly used glass or specific plastics such as PP, PE).
- Sealing: to prevent formalin evaporation (with lid design).
- Transparent/translucent: easy to observe the contents (e.g. urine sediment or tissue samples).
- Safety Leak-proof design: avoid formalin leakage (toxicity risk).