UV VISIBLE SPECTROPHOTOMETER

UV VISIBLE SPECTROPHOTOMETER
MAKE DINESH SCIENTIFIC
MODEL DS-SPM-1100
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
Optical System Double beam design using a Czerny-Turner monochromator and a container for the sample and reference cells
Detector Equipped with dual silicon photodiodes
Source Uses both deuterium and tungsten lamps
MEASUREMENT MODES
Scan Ordinate Modes Supports Abs%, %T, Reflectance, Kubelka-Munk, log(1/R), log(Abs), Abs*Factor, and Intensity
Mode Operates in scanning mode
Resolution > 1.8
Scan Speed < 1 nm to 5000 nm
TECHNICAL SPECIFICATIONS
Wavelength Range Covers 190 nm to 1100 nm
Wavelength Reproducibility Ensures consistency ≤ 0.2 nm across the range
Wavelength Accuracy Maintains ±0.8 nm across the full range
Photometric Accuracy ±0.002 A at 0.5 A, ±0.006 A at 1 A, ±0.010 A at 2 A
Spectral Bandwidth Between 1 nm and 2 nm
Drift < 0.0005 Abs per hour at 500 nm
Photometric Repeatability < 0.0002 A at 0.5 A, < 0.0002 A at 1 A, < 0.0003 A at 2 A
Noise < 0.00015 A
Data Intervals Available options: 10, 5, 2, 1.0, 0.5, 0.2, and 0.1 nm
Baseline Flatness ±0.0006 A variation
Stray Light ≤ 1% transmittance at 198 nm, ≤ 0.05% transmittance at 220 nm, ≤ 0.05% transmittance at 340 nm
PC Compatible PC with Windows software, 8 GB RAM, 512 GB SSD
Powder Cell Holder Kit For powder samples, the system comes with a solid sampling accessory with a spherical sample holder. enables precise measurement by direct analysis of powder samples using an integrated detector and integrating sphere.
Software UV-Visible software
Accessories 10 sets of quartz cuvettes, additional accessories, and a toolbox