A UV-visible spectrophotometer is an instrument used to measure the intensity of light before and after passing through a sample; the relationship between one and the other is called transmittance and is expressed as a percentage. The absorbance can be calculated from the transmittance.
General purpose spectrophotometers are indispensable for a variety of research tasks in biochemical, clinical and pharmaceutical laboratories. Spectrophotometers are convenient enough for students and are also used in high school and college labs.
Range of models to choose from
Highly reliable and cost-effective general-purpose Aglient UV-Vis & UV-Vis-NIR spectroscopy can efficiently perform daily tasks, including quantification, kinetics, spectrum scans, and DNA / protein multi-component testing.
To meet the needs of today’s research laboratories, advanced spectrophotometer models from reputable manufacturers, including Unico, are widely available in the industry. Popular models include S-1000-VIS 110V Spectrophotometer, SQ2802 UV / VIS 110-220V Spectrophotometer, S-2100-E-VIS 220V Spectrophotometer, SQ4802 UVVIS 110V-220V Spectrophotometer, S-1100- RSE VIS 220V Spectrophotometer, S-1100 – RS-VIS 110V spectrophotometer and many others.
General purpose spectrophotometers for high precision results
General purpose spectrophotometers have a number of advanced features that provide highly accurate test results. The Model S-1100-RSVIS 110V Spectrophotometer provides the following important functions:
- Dynamic wavelength range 335-1000 nm
- +/- 2 nm wavelength accuracy
- Easy-to-read display
- Automatic zero function
- Fixed filters for easy operation
- Variable sample compartment
- Wavelength adjustment knob with built-in metal stop
- Built-in accessory output – RS 232 analog
- Solid state switch for full wavelength range
Additionally, the various spectrophotometer models are also equipped with holders for COD vials, Windows application software, and more. They are now available in a variety of sizes, varying in width, width, height, and weight. Plus, they also come with a one-year warranty.
Contact competent distributors to buy
When planning to purchase general purpose spectrophotometers for your laboratory, be sure to seek the services of competent distributors in the industry. They can help you find the right spectrophotometer model that is perfect for your requirements and budget.
Spectrophotometry Principle
A spectrophotometer, one of the most useful laboratory devices for physics, is a combination of two devices, a spectrometer and a photometer. A spectrometer is used to obtain light of any selected wavelength or color, and a photometer is used to measure the intensity of the light. Two devices are placed on each side of the liquid-filled cuvette. The spectrometer emits light of the desired wavelength, passes through the tube and reaches the photometer, which measures its intensity. The photometer then outputs a voltage signal to a display device, usually a galvanometer. As the amount of light absorbed by the liquid changes, so does the signal. The concentration of a substance in solution can be measured by calculating the amount of light absorption of the corresponding wavelength or the specific color.