Professional Detailing1 min read

Coating Spectra: Compare Like Preparation Methods

Different preparation methods can change what an analytical technique observes. A comparison should preserve method compatibility.

Updated · NANOLAB Knowledge

Practical approach

Record the specimen form, substrate and preparation for each spectrum, and ask the analyst about valid comparisons.

A free film and a thin coating on a substrate may contribute different information to the measured signal.

Decision limits

Do not interpret every spectral difference as a formulation change without reviewing specimen preparation.

Related guidance

Method reference: Thermo Fisher: FTIR sample handling. References describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.

Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.