UV-Vis

The kinetic turbidimetric LAL method quantifies bacterial endotoxin by tracking rising absorbance over time in a microplate reader.

Enzyme kinetics measurement tracks absorbance change over time to determine reaction rates, Michaelis-Menten constants, and inhibitor effects.

Ultraviolet–visible spectroscopy measures how much light a sample absorbs at each wavelength, revealing concentration, purity, and molecular information.

UV-Vis spectrophotometers use two complementary light sources. Here is why both are needed and how the instrument switches between them.

The Beer–Lambert law links absorbance to concentration, making quantitative analysis possible. Here is what it says and where it holds.

Both designs measure absorbance, but they handle the reference differently. The choice affects stability, speed, and cost.