Agilent InfinityLab LC Series VWD User Manual 105
8Test Functions
Intensity Test
Intensity Test
The intensity test measures the intensity of the deuterium lamp over the full VWD
wavelength range (190 - 600 nm). The test can be used to determine the
performance of the lamp, and to check for dirty or contaminated flow cell
windows. When the test is started, the gain is set to zero. To eliminate effects
due to absorbing solvents, the test should be done with water in the flow cell. The
shape of the intensity spectrum is primarily dependent on the lamp, grating, and
diode characteristics. Therefore, intensity spectra will differ slightly between
instruments. The figure below shows a typical intensity test spectrum.
The Intensity Test is available in Agilent Lab Advisor (preferred tool).