Description: The DU Series Spectrophotometer is a microprocessor- controlled spectrophotometer intended for use in quantitative and qualitative biological. The Beckman DU Spectrophotometer is an efficient stand alone system that comes with complementary accessories to produce accurate results. Beckman DU UV/Vis Scanning Spectrophotometer. This refurbished DU Spectrophotometer unit; PDF Manual; Mouse; Power cord.
|Published (Last):||4 August 2006|
|PDF File Size:||15.65 Mb|
|ePub File Size:||18.98 Mb|
|Price:||Free* [*Free Regsitration Required]|
Back to home page Return to top. Archived from the original PDF on 26 March Remove your samples from the area when you have finished using the machine.
This device forever simplified and streamlined chemical analysis, by allowing researchers to perform a I would like to share this great online resource for anyone seeking a spectrophotometer: You are responsible for the extra charges shipping and handling. By the s, both academic and industrial chemists were becoming increasingly interested in problems involving the composition and detection of biological molecules. However, they had the advantage of being readily available because they were used as automobile headlamps.
DU spectrophotometer – Wikipedia
When they turned down the opportunity, National Technical Laboratories designed its own optical system, including both a spectrophotometre mechanism and a quartz prism. Please feel free to ask question s if you have any. Any international shipping and import charges are paid in part to Pitney Bowes Inc.
Journal of Specgrophotometer Medicine. Please subscribe to our store for newsletters and great deals. For convience I’ve combined these into a single, text-searchable file: The last DU spectrophotometer was produced on July 6, People who viewed this item also viewed. The Model B prototype should be distinguished from a later production model of spectrophotometer that was also referred to as the Model “B”. Ships from United States.
The philosophy and history of molecular biology: A white light source would emit light at multiple wavelengths over a range of frequencies. The tangent bar mechanism was replaced by a scroll drive mechanism, : Three Model C instruments were then built, improving the instrument’s wavelength resolution.
Science in the twentieth century. The DU was the first commercially viable scientific instrument for measuring the amount of ultraviolet light absorbed by a substance. If you get a bogus absorbance reading, make sure the stage is in the correct orientation. Special financing available Select PayPal Credit at checkout to have the option to pay over time.
The mechanism was highly sensitive and required a skilled operator. Warranty is only for 14 day DOA guarantee for full refund less shipping, buyer pays return shipping. Organic chemist and philosopher of science Theodore L.
A manual for the chemical analysis of metals Online-Ausg. Report Sign In to Reply to this Thread.
Chemical technology 1st English ed. Retrieved 20 August This is the small red bar graph icon. From untilwhen it was discontinued, the Model DU spectrophotometer was built upon what was essentially the same design.
Captain will try to maintain water and canned air for cleaning cuvettes, but please replenish the supply for the next user if you use the last of these.
The desired wavelength of light is selected by rotating the Wavelength Selector which adjusts the position of the prism. Atomic spectroscopy 2nd ed.
Beckman DU UV/VIS/NIR Spectrophotometer
Friedkin recalls that an early model of the Beckman DU spectrophotometer was used by the penicillin researchers in Peoria. A number of hydrocarbons were of interest to the war effort. Archived from the original on February 4, Non-volatile memory is standard for storage of methods and data. Other offers may also be available.
Use the “Convert” option on the menu bar to create an Excel kanual with your data. Turn off the DU’s monitor, the PC, and the printer. Click on the file name and you will be prompted to enter a new name.
The British Pharmacopoeia, to Brown states that it “revolutionized the measurement of light signals from samples”. Secure the stage by tightening the screw knobs.