SPECTROPHOTOMETER WITH PELTIER
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-1100 |
| Light Source | Deuterium and halogen lamp |
| Dual Light Source Changeover | Between 330 and 350 nm |
| Detector | Silicon-photo diode |
| Stray Light | 0.03% of transmitted light |
| Baseline Flatness | ±0.0010 Absorbance |
| Baseline Stability/Drift | ±0.0005 Absorbance per hour |
| RMS Noise | ≤ 0.0001 Absorbance |
| Temperature Controller | Peltier-based |
| Temperature Range | 0 – 100°C |
| Wavelength Range | 190 – 1100 nm |
| Wavelength Accuracy | ±0.2 nm |
| Wavelength Repeatability | ±0.1 nm |
| Spectral Bandwidth | 1 nm |
| Photometric Range | -3 to +3 Abs |
| Photometry Accuracy | ±0.0015 Abs (0 to 0.5 Abs) ±0.0025 Abs (0.5 to 1 Abs) |
| Photometric Repeatability | ±0.0005 Abs (0 to 1 Abs) |
| Communication | USB port for collection/copy of data |
| Software Compatibility | · Provided with analysis modes including:
· Spectral Analysis · Auto Scale Function · Trace · Zoom · Peak/Valley Picking · Area, Height Calculations · Derivative Method · Multiple Views/Overlay |
| Measurement Modes | · Wavelength Scan (Absorbance, %T, %R, Sam, Ref)
· Time Scan · Fixed Wavelength (8 wavelengths) · Abs/%T Monitor · Quantitative Analysis |
| Included Accessories | · Controlling software
· Water circulator · All necessary accessories |
| Power Supply | 200-240 VAC, Single Phase |
| Weight | 26kg Kilograms (kg) |
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