Single Beam UV-Visible Spectrophotometer LUS-T2011

Introduction

Single Beam UV-Visible Spectrophotometer is formulated with large display screen and 8 cell holder capacity. It has full functionality from 190 – 1100 nm range of wavelength. It comes with 1.8nm spectral bandwidth. This single beam spectrophotometer has highly stable optics with 1200 lines/mm grating. It is particularly designed to meet its versatility in research and industries.

This analytical equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Single Beam UV-Visible Spectrophotometer is ideal for quality control, general research, pharmaceuticals, biochemical and clinical laboratory applications

Specifications

Wavelength Range	190 ~ 1100 nm
Spectral Bandwidth	1.8 nm
Wavelength Accuracy	± 0.3 nm
Wavelength Repeatability	0.2 nm
Photometric Range	0 - 200 % T, (-0.3) to (-3.0) A, 0 - 9999 C
Photometric Accuracy	± 0.3 % T
Photometric Repeatability	0.2 % T
Detector	Silicon Photodiode
Light Source	Deuterium & Tungsten Halogen Lamp
Stray Light	≤ 0.05 % T at 220 nm, 360 nm
Stability	0.002 A / h at 500 nm
Data Output Port
Power Requirement	AC 220 V / 50 Hz, 110 V / 60 Hz.
Noise	± 0.001 A
Optical System	Single Beam (1200 lines / mm grating)
Baseline Flatness	± 0.001 A
Printer Port	Parallel Port
Packing Size	860 x 660 x 465 mm
Packing Weight	35 kg

Features

Single beam spectrophotometer

Wavelength range 190nm – 1100nm

Spectral bandwidth 1.8nm

Optical system with 1200 lines/mm grating

Deuterium & Tungsten Halogen Lamp as dual light source

6 inches (320x240 Dots) display & integrated user interface

8 cell holder available along with port for data storage

FAQs

1. How can user diagnose and correct stray light affecting high-absorbance measurements in Single Beam UV-Visible Spectrophotometer ?

It supplies premium Single Beam UV-Visible Spectrophotometer . Stray light-unwanted wavelengths passing through the sample—inevitably distorts readings above 2?AU, compressing absorbance values and skewing photometric linearity. To detect it, use cutoff solutions (e.g., KCl, NaI, NaNO?) at their non-transmitting wavelengths and look for a non-zero transmittance. High-quality holographic gratings and meticulously clean internal optics help suppress stray light. Regular checks using or Ph.Eur. procedures, plus maintaining beam-path seals, are crucial to maintaining full dynamic range. Proper stray-light control expands reliable measurements to higher absorbance levels, ensuring data accuracy and regulatory compliance.

2. Why do lamp-switch artifacts appear in the crossover region, and how can user minimize them in Single Beam UV-Visible Spectrophotometer ?

It supplies Single Beam UV-Visible Spectrophotometer with advanced features. Noise or artifacts around 320–360?nm often arise because the instrument toggles between UV (deuterium) and visible (tungsten) lamps during scans. Transient misalignment or imperfect timing introduces ghost peaks. Mitigation requires precise optical alignment, clean lamp compartments, and software settings that delay data capture during lamp switch. Regular recalibration and lamp maintenance can reduce crossover noise. This improves spectral continuity and ensures accurate absorbance values across the UV–Vis boundary.

3. How should I verify and maintain photometric accuracy and linearity in Single Beam UV-Visible Spectrophotometer ?

. It supplies Single Beam UV-Visible Spectrophotometer with advanced features. Photometric accuracy-consistency between measured absorbance and certified standards—is vital for quantitative work. Perform linearity tests with potassium dichromate standards and compare against reference absorbances at key wavelengths. Stray-light, detector saturation, or lamp deterioration can disrupt linearity; instrument response should be linear across the working range. Regularly monitor baseline noise and linearity, updating calibration.

4. What factors contribute to non-linearity at high concentrations, even after stray light correction in Single Beam UV-Visible Spectrophotometer

It supplies premium Single Beam UV-Visible Spectrophotometer . Even in stray-light-controlled instruments, non-linearity may persist at high analyte concentrations due to molecular interactions that alter extinction coefficients or refractive indices, and absorption flattening in suspensions. To counter this, dilute samples to <1?AU or use shorter path-length cuvettes, ensuring compliance with Beer–Lambert conditions. For turbid solutions, pre-treat via filtration or centrifugation. Such steps realign calibration curves and minimize systematic error in concentration determination.