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DU® Series 700 UV/Vis Scanning Spectrophotometer
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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.
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Product Features
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Generic Standard Features
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- 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
- Focused Beam Design
- Quick Interchange of Cell Holders & Modules
- Password Protection with Security List
- Automatic Lamp Turn-Off
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Microsamples and Focused Beam
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- The narrow beam width of the system ensures excellent
results for small samples in semi-microcells. With the focused
beam, there is no need for masking, and the entire energy is
utilized to provide a wide dynamic range and excellent
linearity. With this design, small variances in cell positioning
have no effect on the reproducibility of your results.
- For even smaller samples, the popular 50 µL microcells from
Beckman Coulter can be used with a specifically designed cell
holder. The cells are easy to clean and, if not diluted, your
precious DNA, RNA, or oligonucleotide samples can be quickly
recovered.
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Advanced Features
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- Startup diagnostics and a range of system checks to
guarantee that the instrument performs to specifications each
day
- Both the UV and Visible lamps can be turned off
automatically and independently to protect lamp life and save
cost
- USB ports for printer, memory device, and keyboard. Data can
be transferred to a PC quickly and easily in CSV format
(comma-separated values). The CSV format has become the standard
import format for spreadsheets and LIMS
- Temperature control for single samples with the optional
Peltier temperature control module, ideal for enzyme samples
- Built-in transport mechanism for 7-position carousel
- Password protection with individual access control (security
list)
- With the DNA/Protein Tools (DU 730 only), calculations,
common conversions, and lookup tables are at your fingertips
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Operational Simplicity
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- Intuitive and convenient touch-screen user interface makes
operation a breeze
- Operator and Sample ID's with alphanumeric input for quick
and convenient sample identification
- Multilanguage Software
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More Info
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includes a complete set of application programs to address your
application needs. DU 720 General Purpose:
DU 730 Life Science:
All DU 720 Modes, plus:
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Protein Assay Analysis
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Nucleic Acid Analysis
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Dye Incorporation (%)
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DNA/Protein Tools
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Application Software for DU 720 & DU 730:
Click to enlarge image
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Fixed Wavelength Takes measurements
from up to 4 wavelengths automatically in absorbance or
transmittance.
- Results can be obtained with a formula or a simple
factor
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Click to enlarge image
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Wavelength Scan
Takes an absorbance or transmittance scan at a specified
wavelength range and resolution.
- Trace and Zoom functions
- Overlay with stored scans
- Peak and valley determination
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Click to enlarge image
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Kinetics/Time Measures samples in
absorbance at specified time intervals and determines the slope
or rate.
- Simultaneous measurement of up to 7 rate reactions
- Calculation of rate and variance
- Background correction with 2nd wavelength
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Click to enlarge image
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Single Component Analysis Determines
the concentration of unknown samples via a standard curve.
- Accepts up to 24 standards
- Determination of standard curve or input of known
coefficients
- Rerun of individual standards
- Linear or non-linear (quadratic) curve fit
- Replicates with average, %CV calculation and outlier
indication
- Background correction with 2nd wavelength
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Application Software for DU 730:
Click to enlarge image
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Protein Assay Analysis Determines
protein concentrations with the most commonly used assay
methods:
- Bradford
- Lowry (high and low)
- Biuret
- UV 280
- Colloidal Gold
- Bicinchoninate (BCA)
Features are similar to the Single Component Analysis
application
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Click to enlarge image
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Nucleic Acid Analysis Determines sample
purity, concentrations, and other parameters from DNA, RNA, and
oligonucleotide samples.
- 260/280 Ratio
- Single Ratio (with or w/o Background Correction)
- Double Ratio & Concentration (with or w/o Background
Correction)
- Concentration for dsDNA, ssDNA, and RNA with pathlength
correction
- Oligonucleotide Quantitation for long and short oligos
with nearest-neighbor algorithm, including determination of
theoretical thermal melting point for DNA samples
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Click to enlarge image
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Dye Incorporation (%) Analyzes labeling
reaction for spotted array sample preparation.
- Single or dual-color methods
- Suitable for any dye that has fluorescence wavelengths
similar to Cy3 (550 nm) or Cy5 (650 nm)
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Click to enlarge image
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DNA/Protein Tools Provides many
functions to aid you in your daily laboratory tasks.
- Calculations
- Common Conversions
- Common Tables from the Microbiology Handbook
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