What is Genesys 20?
Thermo Scientific™ GENESYS 20 is a compact, low-cost, easy-to-use, Visible spectrophotometer designed for classrooms and routine laboratories. A simple, 4-step measurement process and optional VISIONlite™ software make the GENESYS 20 the most cost-effective, visible spectrophotometer available.
How do you zero a spectrophotometer?
This allows you to set a “0” so that your absorbance readings will have a basis to be compared to. Zero (blank) the SmartSpec 3000 by placing a cuvette containing only media (NO BACTERIA) into the cuvette chamber and pressing Read Blank. You can re-zero the instrument at any time during use.
Which of the following is the working principle of spectrophotometer?
The working principle of the Spectrophotometer is based on Beer-Lambert’s law which states that the amount of light absorbed by a color solution is directly proportional to the concentration of the solution and the length of a light path through the solution.
What happens if you don’t zero a spectrophotometer?
Having the blank will make it possible for you to adjust the instrument so that it ignores any light absorbed by the solvent and measures only the light absorbed by the chromophore. Smudges from your fingers on the sides of the cuvette, where light passes through it, will scatter light and affect your data.
Why must the spectrophotometer be re zeroed?
Why does a spectrophotometer need to be zeroed? Spectrophotometers and colorimeters are zeroed or “blanked” to reset the absorbance baseline to any background color in the sample that may absorb at the wavelength in question causing an interference.
How do you use a digital spectrophotometer?
Plug in and turn on the spectrophotometer. Allow it to warm up for 15 minutes. Press the Percent T/A selector to select Percent Transmittance or Percent Absorbance mode. Locate the wavelength dial beside the sample chamber and set it to the desired wavelength.
What does a monochromator do in a spectrophotometer?
A monochromator produces a beam of light with an extremely narrow bandwidth, or light of a single color. It is used in optical measuring instruments where tunable monochromatic light is sought. A monochromator produces a beam of light with an extremely narrow bandwidth, or light of a single color.
What is absorbance and transmittance?
Absorbance (A), also known as optical density (OD), is the quantity of light absorbed by a solution. Transmittance is the quantity of light that passes through a solution.
Why choose the Genesys 20?
The GENESYS 20 is designed for routine use and maximum reliability. With very few moving parts, the GENESYS 20 provides a robust system you can count on for years of trouble-free operation. Versatile Accessories Boost Productivity
What is the Thermo Scientific Genesys 20?
The Thermo Scientific GENESYS 20 is a low-cost, easy-to-use, and reliable Visible spectrophotometer designed to meet the requirements of teaching and routine laboratories. A simple, 4-step measurement process and optional Thermo Scientific VISIONlite 5
What can be used in the Genesys 20 sample compartment?
Versatile Accessories Boost Productivity The GENESYS 20 sample compartment is designed to handle a wide range of test tubes, cuvettes, vials, and a solid sample holder accessory. The standard cell holder provided with the instrument is compatible with 10 mm square cuvettes.
What PC-control applications are available for the Genesys 20 Series instruments?
There are two PC-control application programs available for the GENESYS 20 series instruments: • The common PC-control software control platform for Thermo Scientific GENESYS and SPECTRONIC spectrophotometers, VISIONlite™5, consists of applications for wavelength scanning, fixed multi-wavelength analysis, quantitative analysis, and kinetics.