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:

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 tool box