Double Beam UV-Visible Spectrophotometer

Introduction

Double beam UV-Visible spectrophotometer is a high-precision analytical instrument used for measuring the absorption and transmission of light by substances across a wide spectrum of ultraviolet and visible wavelengths. It employs two optical beams, one passing through the sample and the other through a reference, to ensure accurate and stable measurements. double beam UV-Visible spectrophotometers are essential tools in scientific research, quality control, and analytical chemistry for applications such as chemical analysis, quantitative analysis of complex mixtures, and material characterization. Measurement accuracy: ±0.01 pH; range: 0.00 to 14.00 pH.

Standards

GB/T 26813-2010-Double-beam ultraviolet-visible spectrophotometers

European Pharmacopoeia 2.2.25-Spectrophotometry, ultraviolet and visible

ASTM E275-08(2022)-Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers

USP General Chapter <857>-Ultraviolet-Visible Spectroscopy

Complies with the above standards, but is not limited to them.

Features

1. Multiple modes support absorbance, transmittance, concentration and kinetics.

2. Diffraction grating or monochromator provides precise wavelength selection.

3. Low stray-light design supports accurate absorbance readings.

4. USB, RS232 or printer options export results and reports.

5. Multi-cell or sipper options increase measurement throughput.

FAQ

What is the Double Beam UV-Visible Spectrophotometer mainly used for?

The Double Beam UV-Visible Spectrophotometer is used to measure absorbance, transmittance or concentration of samples across a defined wavelength range. It supports quantitative analysis, purity checks, kinetics and quality control in chemistry, biology, pharmaceutical and environmental laboratories.

Which standards and regulations apply to the Double Beam UV-Visible Spectrophotometer?

The instrument is designed with reference to IEC 61010 electrical safety requirements and relevant GB/T standards for spectrophotometers, including wavelength and photometric accuracy. Procedures should follow applicable standard methods. Compliance documentation can be provided on request.

What does the warranty cover?

The system is covered for 12 months after shipment, including the main mechanism and electrical controls. Replaceable consumables and routine service items are not part of the warranty. Faults caused by improper installation outside the manual or unauthorised modification are not covered.

Will staff need special training?

Routine operation is straightforward and is covered in the user manual, including setup, daily use and basic maintenance. Staff with basic laboratory experience can run it after a short familiarisation. We provide remote guidance and can arrange on-site training where required.

How long does delivery usually take?

Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Is calibration included?

Factory calibration is included, and routine verification is recommended every 6 to 12 months using suitable reference materials. Regulated sites may require more frequent checks and documented records. Calibration support and certificates can be provided on request.

Are consumables and spare parts easy to obtain?

Common consumables and standard spare parts are available through our service channel and are not locked to proprietary formats. Quote the model and serial number when ordering so the correct items are supplied. Lead time for standard parts is usually short.

Can the Double Beam UV-Visible Spectrophotometer be customised?

The standard model can be configured with selected accessories and operating options to suit the task. Non-standard requests are assessed before quotation so the final build is clearly defined. We confirm details before production.

How is the Double Beam UV-Visible Spectrophotometer commissioned?

Most models can be commissioned by following the manual, including positioning, connections, checks and a first test run. Remote guidance is available during start-up. On-site installation, commissioning and training can be arranged separately where required.

What maintenance and safety points matter?

Do not measure highly corrosive or incompatible samples, use dirty cuvettes or skip blank correction. Verify wavelength and photometric accuracy periodically. Follow laboratory safety rules.