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5.5.3
Colorimetric capture
Introduction
Colorimetric capture is available in Amersham Imager 680 configurations as described
in the following table.
680
RGB
680
QC
680
UV
680
Illumination
Sample
Option
x
x
x
x
Epi-White
•
Membrane
•
Gel
Epi-
illumination
x
x
Trans-White
•
Gel
Trans-
illumination
Both options use white light imaging sources. For Epi-illumination the light source is lo-
cated at the top of the Amersham Imager 680 interior. For Trans-illumination the sample
is illuminated from the light source at the bottom of the instrument interior. When using
Trans-illumination, the intensity data is converted to optical density (OD values), which
provides a more quantitative result compared to Epi-illumination.
Colorimetric capture is only available with Lower tray position.
Note:
The images are by default created with automatic exposure time.
The table below describes details on accessories and tray positions for colorimetric image
capturing.
Tray position
Tray and accessory
Option
Lower tray position
Black
Tray +
White In-
sert
Epi-
illumination
Lower tray position
White
Trans
Tray
Amersham Imager 680 Operating Instructions 29271308 AB
137
5 Operation
5.5 Capture an image
5.5.3 Colorimetric capture