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| Stray Light - Measurement and Effect on Performance in UV-Visible Spectrophotometry (TN51170) |
| Abstract: This technical note details the measurement stray light and its effects on UV-Visible spectrophotometry. |
| Stray Radiant Energy (SRE) or stray light is the measured quantity of light that reaches the detector that is of a wavelength other than that selected. Stray light causes the measured transmittance to be erroneously high. Stray light can be monitored using stray light cut-off filters to ensure that it is not affecting absorption methods on a given sample. These stray light measurements use Thermo Scientific certified reference materials.
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