UV Vis

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UV/Vis Spectrophotometry

Beckman Coulter DU 700
The DU Series 700 spectrophotometers are advanced and affordable systems that generate accurate and reproducible measurements. The narrow bandwidth allows you to scan your samples with excellent resolution. With its focused-beam design, the system provides optimal and reproducible results for small samples, capabilities usually found only on more expensive systems. The systems have a unique touch-screen user interface with easy-to-use but powerful software. A wide range of applications software is included and makes the DU Series 700 the perfect solution for life science, research and analytical labs.

  • CSV File Format for Data Transfer
  • USB Ports
  • Spectral Bandwidth of 3.0 nm
  • Touch-Screen User Interface
  • Operator and Sample ID's
  • Wavelength Range from 190 to 1100 nm
  • Quick Interchange of Cell Holders & Modules
  • Password Protection with Security List
  • Automatic Lamp Turn-Off
  • Focused Beam Design
There are two versions of the DU 700 which differ only in the installed software:
DU 720 General Purpose:
  • Fixed Wavelength
  • Wavelength Scan
  • Kinetics/Time
  • Single Component Analysis

DU 730 Life Science:
All DU 720 Modes, plus:

  • Protein Assay Analysis
  • Nucleic Acid Analysis
  • Dye Incorporation (%)
  • DNA/Protein Tools


  

Performance Specifications:

DU Series 700 UV/Vis Scanning Spectrophotometer
Operating Mode
Absorbance and Transmittance (%T)
Source Lamp Deuterium (UV) and Tungsten (visible)
Wavelength Range 190 to 1100 nm
Wavelength Accuracy 1 nm from 200 to 900 nm
Wavelength Calibration Automatic
Scanning Speed Depending on selected resolution (100-4500 nm/min)
Wavelength Resolution Selectable Interval (0.1, 0.2, 0.5, 1.0, 2.0, and 5.0 nm)
Spectral Bandwidth ≤ 3 nm
Photometric Readout -0.3 to 3.0 or 0.1 to 100 %T
Photometric Accuracy 0.005 at 0.0 to 0.5
1% at 0.5 to 2.0
Photometric Linearity < 0.5% at 2.0
≤ 1% at > 2.0
Stray Light > 3.3 or < 0.05%T with KI-solution at 220 nm

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