DS5 Dual Beam UV-Vis Spectrophotometer
- Variable bandpass options at 0.5, 1.0, 1.5, 2.0 or 4.0 nm over
the range 190 nm – 1100 nm - Fast scanning – up to 6,000 nm/min to aid sample analysis throughput
- Automatic accessory recognition connected to the DS5
- Optional Visacle® software for PC control
- Modern touchscreen interface with intuitive menus and functions to ensure ease of use for standalone control
- USB, SD card and internal data storage for convenient retrieval of methods and results
Product Description
DS5 Dual Beam UV-Vis Spectrophotometer
The DS5 UV-Vis Spectrophotometer is a high performance dual beam instrument that measures absorption and transmission as a function of wavelength and is suitable for many analytical applications where accuracy and precision measurements are key to your results.
Designed and manufactured in the UK, the DS5 provides a modern, user-friendly and accurate UV-Vis spectrophotometer for a wide range of sample types and measurements.
Utilising a dual lamp and Czerny-Turner configuration monochromator, the DS5 features a compact, reliable and high throughput optical system which ensures impressive spectral performance. Additional benefits include stray light, baseline flatness, wavelength and photometric accuracy and reproducibility.
Application Note – « Transmission and Absorbance Measurements of Liquid Samples »
The DS5 can be used for absorbance measurements, an example of the type of research which can be carried out can be found in our application note « Transmission and Absorbance Measurements of Liquid Samples ». You can download the full application note here.
For price details, further information or to find out how our UV-Vis spectrophotometer can assist you with your research, simply contact a member of our sales team at sales@edinst.com.
Technical Specifications
| Parameter | Description |
|---|---|
| Optics | Czerny-Turner, Dual Beam Monochromator |
| Wavelength Range | 190 nm – 1100 nm |
| Spectral Bandwidth | 0.5 nm, 1 nm, 1.5 nm, 2 nm and 4 nm |
| Stray Light | ≤0.10% T (220 nm NaI, 340 nm NaNO2) |
| Wavelength Accuracy | ±0.1 nm |
| Wavelength Repeatability | ±0.1 nm |
| Photometric Range | Absorbance: -3.4 to +3.4, %T: 0 to 300, Concentration: 0,000 to 9,999 |
| Photometric Accuracy | ±0.002 Abs (0 – 0.5 Abs), ±0.004 Abs (0.5 – 1.0 Abs), ±0.008 Abs (1.0 – 2.0 Abs) |
| Photometric Reproducibility | ±0.0003 Abs (0-0.5 Abs), ±0.0005 Abs (0.5-1 Abs), ±0.001 Abs (1.0-2 Abs) |
| Wavelength Scan Speed | 10, 100, 200, 400, 800, 1200, 2400, 3600, 6000 nm/min |
| RMS Noise | ≤0.00003 Abs (0 Abs, 500nm) |
| Baseline Stability | <0.0003 Abs/hr (500 nm, 2 hour lamp warm-up period) |
| Baseline Flatness | ±0.0009 Abs (200 nm – 950 nm) |
| Light Source | Tungsten-Halogen and Deuterium Lamps |
| Light Source Switching | Automatic switching selectable for 325 nm – 370 nm range |
| Detector | Silicon Photodiode |
| Display | 7” Touchscreen |
| Software | Touchscreen operation, PC-controlled software or CFR compliant PC-controlled software |
| Dimensions | 500 mm (W) × 475 mm (D) × 250 mm (H) |
| Net Weight | 20 Kg (approx) |
| Power Supply | 100 – 240V, 50/60 Hz, 150VA |
| Ambient Temperature | 10°C – 35°C |
| Output Device | USB flash drive, SD card |
| Interface | USB PC interface |
Software
| Home Screen | Measurement Setup |
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UV-Vis Measurement Modes
Photometry Mode: Perform quantitative analyses in either absorbance or transmittance modes. Select from single up to 5 different individual wavelengths, nucleic acid/protein A260/A280 ratios and set up calibration curves for concentration measurements.
Time Scan: Perform kinetic measurements for time periods ranging from 10 seconds to >27 hours. Measurement intervals are factory preset and automatically selected when the scan time is set.
Wavelength scan: Perform a full spectral scan from 190 nm – 1100 nm at any of 9 incremental and preset selectable scan speeds starting from a high resolution 10 nm/min up to a maximum scan speed of 6,000 nm/min. Data is displayed as a graphical spectrum on which data analysis can be performed through the touchscreen interface with zoom, peak-valley, smoothing and other functions available through the easy to use menu interface.
- Concentration measurement
- Absorbance/Transmittance measurement
- Hexavalent Chromium, Nucleic acid measurement (nucleic acid purity, nucleic acid concentration, protein concentration calculation)
- Wavelength scan
- Time change
- Single and multi-wavelength photometry
| Spectrum Overlay | Area Calculation |
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Validation Functions
To ensure optimum instrument performance, self-diagnosis incorporating a number of parameters and wavelength calibration are automatically initiated upon start-up. Furthermore, the DS5 is equipped with a GLP/GMP feature for analyses requiring validation and auditing. Parameters such as wavelength accuracy, wavelength reproducibility, bandpass, baseline flatness, baseline stability and noise level can all be validated.
Data Handling
- Scale changing, Trace, Spectrum overlay, Peak & trough detection, Smoothing, Differentiation, and Area & rate calculating
- Internal memory, External USB, SD card
- File output in CSV and text format
Optional Visacle® PC-controlled Software
Visacle® offers all control, validation, data analysis and reporting functionality for DS5 in one PC-operated software package. Collected data is stored in a secure database, where it can then be organised and analysed, as well as exported in .txt, .csv or PDF format.
Visacle® can be purchased as a CFR Part 11 compliant package for users requiring additional security. Features include:
- Configurable user profiles with secure login and e-signatures
- Audit trail logging of all actions taken
- Permission system to restrict actions and data access to authorised users
| Visacle® Project Browser | Visacle® CFR User Profile Manager |
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