Silver protein

Protargol silver impregnation and neuronal selectivity for light and electron microscopic observations.

• Assay: ~8% Ag basis
• Titration: 7,0 to 9,0%
• pH: 8,0 to 9,5 (10 mg/ml in water)
• Solubility: 1 g in 10 ml of water

Silver proteinate (protargol) is used as a component of the Periodic Acid-ThioSemiCarbazide-Silver Proteinate (PA-TSC-SP) staining protocol for ultrastructural detection of carbohydrates such as glycogen, and proteoglycans.