DOUBLE BEAM SPECTROPHOTOMETER
MAKE DINESH SCIENTIFIC
DESCRIPTION
A double beam spectrophotometer is an advanced analytical instrument used to measure the absorbance or transmittance of light by a sample at various wavelengths. It works by splitting a light source into two beams: one passes through the sample, and the other passes through a reference. The instrument compares the intensities of these beams to determine the amount of light absorbed by the sample, providing highly accurate and stable measurements. Double beam spectrophotometers are commonly used in laboratories for chemical analysis, molecular biology, and quality control.
FEATURES OF A DOUBLE BEAM SPECTROPHOTOMETER:
Dual Beam System: Splits the light into two beams one directed at the sample and the other at the reference—allowing for continuous correction of any fluctuations in light intensity, improving accuracy.
- Wavelength Range: Typically covers a broad wavelength range (e.g., UV-visible range from 190 nm to 1100 nm), allowing for diverse applications in analyzing different types of samples.
- High Sensitivity: Offers precise absorbance and transmittance measurements, with a high level of sensitivity to detect even small changes in sample concentration.
- Automatic Wavelength Scanning: Many models come with automated scanning features that can sweep across a range of wavelengths, simplifying the analysis process and speeding up data collection.
- Photometric Accuracy: Ensures highly reliable data by accurately measuring the intensity of light absorbed by the sample, crucial for detailed analytical work.
- Digital Display and Data Output: Provides a clear, user-friendly interface for displaying results, with options for data export via USB or RS232 for further analysis or record-keeping.
- Baseline Correction: Continuously corrects for baseline drifts or fluctuations, ensuring stable and consistent readings during long-term experiments.
- Sample Compartment: Spacious and often customizable to accommodate different types of cuvettes, tubes, or cells for diverse sample sizes and types.
TECHNICAL DETAILS:
MODEL |
DS-SPM-900 |
| Resolution | resolution of 0.1 nm |
| Spectral Range | Covers a range from 190 to 900 nm |
| Bandwidth | 0.1 to 5 nm with 0.01 nm precision |
| Sample Holder Capacity | Upgradeable to hold a of 6 samples |
| Light Source | Deuterium (D2) and tungsten (W) lamps |
| Operating Temperature | Functions between 15 and 35°C |
| Monochromator | Design of a double out-of-plane lighted row. |
| Optics | Double-beam system with permanently aligned optics and a reference beam. |
| Photometric Range | range of 4 Abs |
| Upgradability | Adaptable to upcoming developments, such as multi-sample Peltier cooling, fiber optic probes, solid samples, etc. |
| Display | Controlled through a PC with a widescreen LCD monitor |
| Detector | Equipped with PMT or photodiode |
| Scanning Speed | 150,000 nm/min in UV-Vis mode |
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