SF-56 UV-Vis-NIR Spectrophotometer for High-Precision Measurements

Variable Spectral
Slit Width

Double Monochromator

Optional Reflectance Measurement

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Spectrophotometers

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SF-56

Versatile instrument for high-precision spectral analysis

The SF-56 is a high-performance UV-Vis-NIR spectrophotometer designed for the analysis of liquid, solid, and powdered samples across the ultraviolet, visible, and near-infrared spectral ranges.

The instrument combines high spectral resolution, broad analytical capabilities, a compact design, and flexibility for samples of different shapes and compositions.

SF-56 Operating Modes

The SF-56 provides the functionality required for both research and applied applications:

Automated Measurements

Single and sequential measurements at specified wavelengths for one or multiple samples.

Spectral Scanning

Measurements over a specified spectral range with automatic detection of maxima and minima and analysis of spectral features.

Kinetic Measurements

Monitoring changes in optical characteristics over time, followed by processing of kinetic curves.

Concentration Measurement

Concentration determination using calibration curves, with support for polynomial functions, replicate measurement series, and outlier removal.

Mathematical Data Processing

Reaction rate calculations, determination of color characteristics, data interpolation, and filtering.

SF-56 Advantages

Variable Spectral Slit Width

Provides high accuracy and reliable analysis of complex mixtures and substances, offering excellent performance in its price range.

Fast High-Throughput Measurements

An automated six-position sample compartment enables rapid measurement of multiple samples in sequence.

Easy Access to the Sample Compartment

The wide-opening cover simplifies sample loading and replacement.

Compact Design

The innovative optical design enables a compact instrument footprint for convenient installation in any laboratory.

Versatile Cuvette Holders

Supports a wide range of sample types, including non-standard geometries and sizes.

Full PC Integration

Instrument control is provided via a user-friendly Windows application running on a PC.

SF-56 Spectrophotometer Technical Specifications

Measurement spectral range, nm

190-1100

Transmittance measurement range, %

0,01 - 200

Optical density measurement range, OD

-0,3 – 4,0 OD

Photometric accuracy for transmittance measurements, %

400–750 nm:
±0,5% for 30% - 100%
±0,25% for 1% - 30%

Other spectral ranges: ±1.0%

Photometric repeatability for transmittance measurements, %

0,1%

Wavelength setting error, nm

±1,0

Minimum resolvable spectral interval, nm

0,3

Spectral slit width range, nm

0,3-6 (0,3/0,6/1/3/6)

Measurement modes

Transmittance, optical density, concentration, kinetic parameters

Sample compartment

6 samples, automatic sample change

Overall dimensions, mm

430х480х200

Weight, kg

16кг

Power consumption, VA

max. 100 VA

Power supply

220 V, 50 Hz

SF-56 Configuration

Standard SF-56 Spectrophotometer Package

Accessories and Measurement Components

6 K10 quartz cuvettes
Spare light source

Cuvette Holders and Mechanical Components

4 types of cuvette holders

Software

Control and measurement analysis software for Windows

Connectivity and Infrastructure

Serial interface cable for PC connection

Documentation and Verification

User manual and instrument passport
Verification procedure

Optional SF-56 Spectrophotometer Configuration

Optional components can be selected from different categories depending on the application and measurement requirements. Each configuration is tailored individually.

Accessories and Measurement Components

Cuvettes of various types and sizes (available on request)

Optical Modules

Specular reflectance accessories (PZO-9, PZO-30, PZO-45)
Diffuse reflectance accessory (PDO-6)

SF-56 Spectrophotometer Applications

Chemical Composition Analysis of Ferrous and Non-Ferrous Metals for Laboratory and Industrial Applications

Pharmaceutical Laboratories and Quality Control

Pharmaceutical analysis, stability testing, and compliance with applicable standards.

Research Institutes and Universities

Spectroscopic research, method development, and education.

Chemical and Petrochemical Industries

Quality control of raw materials, intermediate products, and finished products.

Industrial and Testing Laboratories

Incoming and final inspection and material quality testing.

SF-56 Software

The SF-56 spectrophotometer software is a Windows application with an intuitive graphical user interface. All results are saved in a standard text format compatible with the Windows file system. The interface includes tooltips and a built-in Help system.

Each time the instrument is switched on, an initial self-test is performed automatically, allowing its operational status to be quickly assessed. The diagnostic results are displayed on the computer screen. A step-by-step testing system is also provided to help monitor the technical condition of the instrument throughout its service life.

The software supports several operating modes:

Spectral Scanning over a Specified Range

The screenshot below shows the SF-56 software in spectral scanning mode. Clicking the Processing button opens a new window where the acquired spectrum can be processed using various mathematical operations. Characteristic points and their corresponding wavelengths can also be identified automatically or manually.

Point Measurement of Optical Density or Transmittance

This mode is designed to measure the optical density or transmittance of one or more samples at a specified wavelength. The measurement results are displayed in a table, with a separate window available for mathematical data processing.

Kinetic Curve Acquisition

In this mode, the user can set the time parameters for measuring changes in the optical properties of a sample and perform mathematical processing of the resulting kinetic curve.

Concentration Measurement Mode

The SF-56 software includes an automated function for creating analytical methods based on calibration curves. Polynomial functions of degree greater than 1, removal of invalid measurements, and replicate measurement series are supported. Methods can be saved to the computer and retrieved at any time for subsequent concentration measurements using the selected method.