Tools & Microfiber1 min read

Liquid Coating FTIR: Record the Cell and Path Length

A liquid FTIR spectrum depends on the sampling arrangement, including the cell and optical path. These details belong in a reproducible analytical method.

Updated · NANOLAB Knowledge

Practical approach

Ask the laboratory to record the cell materials, path length and specimen preparation used for the comparison.

Different cell arrangements can produce spectra that should not be compared as though only the coating formulation changed.

Decision limits

Do not infer a concentration difference from raw signal size without the appropriate method and calibration.

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.