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Updated: May 7, 2026
17:35
A Microplate Assay to Assess Chemical Effects on RBL-2H3 Mast Cell Degranulation: Effects of Triclosan without Use of an Organic Solvent
Published on: November 1, 2013
Is 500 ppm a better concentration than 200 ppm for diagnosing contact allergy to methylisothiazolinone?
Julie Waton1, Claire Poreaux, Jean Luc Schmutz
1Department of Dermatology, University Hospital of Nancy, University of Lorraine, Research Unit EA 7298 (INGRES) 54500, Vandoeuvre les Nancy, France.
Contact Dermatitis
|September 14, 2013
Abstract
No abstract available in PubMed .
Keywords:
allergic contact dermatitisbiocidesconcentrationcosmeticsmethylisothiazolinonepatch testpreservativeMore Related Videos
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02:48Expressing Solution Concentration
A solute is a component of a solution that is typically present at a much lower concentration than the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
Concentrations may be quantitatively assessed using a wide variety of measurement units, each convenient for particular applications. Molarity (M) is a useful concentration unit for many applications in chemistry.
Concentrations may be quantitatively assessed using a wide variety of measurement units, each convenient for particular applications. Molarity (M) is a useful concentration unit for many applications in chemistry.
02:59Solution Concentration and Dilution
The relative amount of a given solution component is known as its concentration. Often, though not always, a solution contains one component with a concentration that is significantly greater than that of all other components. This component is called the solvent and may be viewed as the medium in which the other components are dispersed or dissolved. Solutions in which water is the solvent are, of course, very common on our planet. A solution in which water is the solvent is called an aqueous...