Microbiology: A Laboratory Manual (11th Edition)
Microbiology: A Laboratory Manual (11th Edition)
11th Edition
ISBN: 9780134098630
Author: James G. Cappuccino, Chad T. Welsh
Publisher: PEARSON
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Chapter 3, Problem 7E.4RQ
Summary Introduction

To explain: Whether the coffee stain is the biological stain or a simply a compound that is capable of imparting color to the fabric.

Introduction: There are various stains used for the microscopic laboratory procedure. These stains consist of negative ion or positive ion that together forms as a salt. The chromophore of the dyes may be a positive ion or negative ion that defines the nature of the stain. For example, if the stain has positive ion and uncolored counter ion, then that stain is called a basic stain.

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