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Elispot evaluation

BioPhotonics
Mar 2007
Carl Zeiss Spectroscopy GmbHRequest Info
 
CarlZeiss.jpgCarl Zeiss has announced two KS Elispot systems for enzyme-linked immuno spot assay evaluations. Consisting of a microscope, a scanning stage, a camera, a control unit, a computer and software, the systems provide ultrahigh speed and resolution, and are suitable for assessing standard and fluorescent Elispot specimens with minimal adjustments. The standard KS Elispot evaluates each well with a 2 × 2-, a 3 × 3- or a 3 × 4-image array, an advantage over systems that collect one image per well. It uses the Axio Imager microscope fitted with a 2.5× EC Epiplan Neofluar objective lens. An AxioCam MRc integrating digital color camera also can be used, as well as 2.5× and 5x objective lenses to cover the range of one to 12 images per well. The compact KS Elispot uses the Stemi 2000 C stereomicroscope and enables an evaluation in less than four minutes.


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GLOSSARY
camera
A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material or a detector. The camera generally contains a lens of variable aperture and a shutter of variable speed to precisely control the exposure. In an electronic imaging system, the camera does not use chemical means to store the image, but takes advantage of the sensitivity of various detectors to different bands of the electromagnetic spectrum. These sensors are transducers...
microscope
An instrument consisting essentially of a tube 160 mm long, with an objective lens at the distant end and an eyepiece at the near end. The objective forms a real aerial image of the object in the focal plane of the eyepiece where it is observed by the eye. The overall magnifying power is equal to the linear magnification of the objective multiplied by the magnifying power of the eyepiece. The eyepiece can be replaced by a film to photograph the primary image, or a positive or negative relay...
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