Double Beam Microprocessor UV-VIS Spectrophotometer with a two-cell holder and Bluetooth Android software is a sophisticated instrument used for measuring the absorbance or transmittance of samples in the ultraviolet (UV) and visible (VIS) spectral regions. Below is a detailed description of the features and functionalities of such a spectrophotometer

Instrument Overview:

Double Beam Design: In a double beam spectrophotometer, the light source is split into two separate beams. One beam passes through the sample while the other passes through a reference. This design compensates for any fluctuations in the light source and provides more accurate and stable measurements compared to single beam spectrophotometers.

Microprocessor Control: The instrument is controlled by a microprocessor, allowing for sophisticated data processing, storage, and manipulation. This makes the instrument user-friendly and enhances the precision and repeatability of measurements.

Optical System:

Light Source: Typically includes both deuterium and tungsten lamps to cover a wide range of wavelengths from the UV (around 190 nm) to the visible (up to 1100 nm) regions.

Monochromator: Utilizes a monochromator to select specific wavelengths of light. Gratings or prisms are commonly used for this purpose.

Detectors: Usually equipped with photomultiplier tubes or photodiodes to detect the intensity of light.

Sample Handling:

Two-Cell Holder: The instrument is equipped with a holder that can accommodate two cells (cuvettes), one for the sample and one for the reference. This allows simultaneous measurement and comparison, enhancing accuracy.

Cuvettes: Standard cuvettes are typically made of quartz or glass, depending on the wavelength range being measured.