Leica Science Lab - Tag : Lead Citrate https://www.leica-microsystems.com//science-lab/tag/lead-citrate/ Article tagged with Lead Citrate en-US https://www.leica-microsystems.com/10912 EM Sample Preparation Brief Introduction to Contrasting for EM Sample Preparation Since the contrast in the electron microscope depends primarily on the differences in the electron density of the organic molecules in the cell, the efficiency of a stain is determined by the atomic weight of the stain attached to the biological structures. Consequently, the most widely used stains in electron microscopy are the heavy metals uranium and lead. https://www.leica-microsystems.com/science-lab/brief-introduction-to-contrasting-for-em-sample-preparation/ Wed, 02 Oct 2013 14:33:00 +0000 Dr. Ruwin Pandithage