Lab Cuvette with Notched Top - Scientific Measurement Tool #3886971 (License: Personal Use)

This illustration shows a rectangular transparent cuvette partially filled with blue liquid, with a distinctive notched top edge for consistent orientation in spectrophotometer instruments. The notches ensure reproducible positioning, minimizing measurement error across repeated assays. The design reflects common laboratory standards for optical clarity and chemical resistance.

Used in educational science resources, lab manuals, and instrument documentation to illustrate sample containment in spectroscopy. Matches user intent for understanding cuvette function, alignment features, or preparing for lab work.