Weigert's Gram stain kit (conn's modified modified)

Conn's modified Weigert Gram stain solution is an improvement on the classic Gram stain formula, using carmine as a contrasting dye. This method is also evolved from the ammonium oxalate crystal violet method. Clinical specimens are directly smeared, the background is clean, the intracellular phagosomes are clear and easy to identify, and the bacterial staining characteristics are typical. It can distinguish Gram-positive bacteria from Gram-negative bacteria, and is particularly suitable for distinguishing blue microgranular substances (such as calcium salts) from bacteria and non-bacteria.