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Beckman Coulter DU730 UV-Vis Spectrophotometer for Life Science Applications

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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
All 21 specifications
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Specifications 21

Brands
Beckman Coulter
New/Used
Used
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 Å or 0.1 to 100 %T
Photometric Accuracy
± 0.005 Å at 0.0 to 0.5 Å 1% at 0.5 to 2.0 Å
Photometric Linearity
< 0.5% at 2.0 Å < 1% at > 2.0 Å
Stray Light
> 3.3 Å or < 0.05%T with KI-solution at 220 nm
Width
45 cm (17.7 in)
Height
20 cm (7.9 in)
Depth
50 cm (19.7 in)
Weight
15.5 kg (34.2 lbs)
Operating Requirements
10 to 40°C (50 to 104°F), max. 90% relative humidity (non-condensing)
Power and Interface Connections Power
100 to 120 V; 200 to 240 V; 50/60 Hz; automatic changeover
Ports
USB 1.1

Product description

High-precision DU730 UV-Vis spectrophotometer with 190–1100 nm range, ideal for protein, nucleic acid, and biotechnological assays.

The Beckman Coulter DU730 UV-Vis Spectrophotometer is a benchtop instrument engineered for precise absorbance and transmittance measurements across a broad wavelength range of 190 to 1100 nm, making it essential in molecular diagnostics, protein assays, and nucleic acid analysis. Featuring a narrow spectral bandwidth (<3 nm) and focused beam design, it delivers superior resolution with minimal stray light (<0.05%T at 220 nm), critical for sensitive bioprocessing and synthetic biology applications.

Key technical specifications include:

  • Dual source lamps: Deuterium for UV and Tungsten for visible spectrum
  • Wavelength accuracy: ±1 nm (200–900 nm) with automatic calibration
  • Scanning speed: Adjustable from 100 to 4500 nm/min to accommodate various kinetic studies
  • Photometric range and accuracy: -0.3 to 3.0 Absorbance Units; ±0.005 A at lower absorbance levels
  • User control: Intuitive touch interface with capacity for up to 50 customizable user protocols
  • Data management: USB connectivity for data export in CSV format, supporting integration with biomanufacturing workflows
  • Security: Password protection with individual user access controls
  • Sample handling: Single cell holder plus a 7-position carousel with transport mechanism for efficient sample throughput

Designed for broad research domains—including biotechnology, clinical diagnostics, and biomedical engineering—the DU730 supports fixed wavelength assays, wavelength scanning, time-dependent kinetics, and common biomolecular analyses like protein and DNA quantification. Its compact footprint (45 x 20 x 50 cm) and moderate weight (15.5 kg) make it suitable for laboratories emphasizing high-throughput molecular cloning workflows and fluorescence analysis.

This spectrophotometer is widely adopted in synthetic biology research and critical in biopharmaceutical production pipelines where reproducibility and precise spectroscopic characterization are paramount. The unit maintains performance over a temperature range of 10 to 40°C and relative humidity up to 90% (non-condensing), ensuring robust operation in varied laboratory environments.

Overall, the Beckman Coulter DU730 is an indispensable tool for researchers requiring accurate UV-Vis measurements integral to live-cell imaging assays, gene editing studies, and other advanced biotechnology applications.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 4 September 2026