The demonstration of two acid groups in juxtaglomerular granules with basic triphenyl methane dyes, aldehyde-fuchsin and Schiff's reagent.
D000818:Animals; D006652:Histological Techniques; D007606:Juxtaglomerular Apparatus / Q000032:analysis*; D008722:Methods; D051379:Mice; D013194:Staining and Labeling