Draw a chart of the reliance of optical density
on formaldehyde concentration (Instruction 1985).
The plot of optical density
at the wave length 420 nm versus TBO concentration estimated by weight has given a linear calibration graph with slope 3.
This allows correlation of their optical density
to instrument radiometry for (1) process design optimization and/or (2) periodic measurements to verify lamp condition over time.
Comparisons were made to temperature and smoke optical density
When light passes from air into water it will be bent, because the optical density
, or refraction index, of the glass is different to air.
3) The scientists believe that lutein and zeaxanthin helped improve visual function by increasing macular pigment optical density
Our purpose was to investigate the relationship between macular pigment optical density
(MPOD), C-reactive protein (CRP), serum lutein and zeaxanthin (L&Z) levels, and variants in the complement factor H (CFH) gene, and to conduct a pilot study on the effect of MPOD augmentation on macular function.
Indirect determination of thickness of the ink film is based on the optical density
Eggs have also been found to increase macular pigment optical density
(MPOD), which is also a counterindicator for AMD.
Both films have aluminum deposited with high optical density
of at least 2.
When blood was tested via enzyme-linked immunosorbent assay, the test patients had a mean optical density
(OD; a measure of antibody levels) of 0.
Changes in optical density
were monitored at 595 nm.
They're not measurements of physical attributes such as residual sugar or optical density
In our experiments, we measured the rate of growth based on optical density
of liquid cultures, when grown in increasing concentrations of lead.
Each of these cultures was monitored daily for pH, optical density
, and bacteriocin activity.