The salinity of the water is measured with a CTD instrument (Conductivity, Temperature, Depth). The conductivity is used to calculate the salinity in conjunction with the temperature and depth (pressure) measurements.Seawater has an average density of 1.027 gm/cm 3, but this varies with temperature and salinity over a range of about 1.020 to 1.029.he salinity of the water is measured with a CTD instrument (Conductivity, Temperature, Depth). The conductivity is used to calculate the salinity in conjunction with the temperature and depth (pressure) measurements.
The Multifocal Electroretinogram. What is the Electroretinogram (ERG)? The electroretinogram (ERG) is a recording of the bioelectric potential, the summed activity of the retinal cells located at the back of the eye, when stimulated by light. When bioelectrical changes occur within the retina, the change is propagated to the surface of the cornea.
The test is a rapid visual test for the qualitative detection of adenovirus serotypes present in eye swabs, nasal and pharyngeal secretions, fecal samples, and cell culture supernatant. This test is for professional use only.he SASâ¢ Adeno Test can be used for the direct testing of eye swab samples, nasal and pharyngeal the times required by traditional cell culture isolation. PRINCIPLE OF THE TEST The immunochromatographic test utilizes a pair of Adenovirus-specific monoclonal antibodies.