Spectrophotometer

A spectrophotometer is commonly used for the measurement of transmittance or reflectance of solutions, transparent or opaque solids, such as polished glass, or gases. In chemistry, spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.

Visible Spectrophotometer UV-VIS Spectrophotometer Double beam UV-VIS Spectrophotometer Flame Photometer

What Factors Should We Consider When Choosing A UV Spectrophotometer?
UV spectrophotometers are widely used in organic chemistry research. It is usually used for substance identification, purity inspection, and research on organic molecular structure. In terms of quantification, it can determine the content of each component in compounds and mixtures with complex structures. It can also determine the dissociation constant of substances, the stability constant of complexes, indicate the end point in molecular weight identification and microtitration of substances, and indicate the end point in high-performance liquid chromatography. For detectors, etc.
Precautions And Problem Handling Process Of UV Spectrophotometer
UV spectrophotometer is an effective means to study the composition, structure and interaction between substances according to the absorption spectrum of substances. The UV spectrophotometer can arbitrarily select different wavelengths of light in the ultraviolet-visible region. The absorption spectrum of a substance is the result of the molecules and atoms in the substance absorbing the light energy of certain wavelengths in the incident light, and correspondingly, the molecular vibration energy level transition and the electronic energy level transition occur. Since various substances have different molecules, atoms and different molecular space structures, their absorption of light energy will not be the same. Therefore, each substance has its own unique and fixed absorption spectrum curve, which can be determined according to the absorption The absorbance at certain characteristic wavelengths on the spectrum can be used to judge or measure the content of the substance.
Core Principles And Selection Of UV-Vis Spectrophotometers
The UV-Vis spectrophotometer is a precision optical instrument used for the qualitative identification and quantitative analysis of samples based on the selective absorption of ultraviolet light (190–380 nm) and visible light (380–780 nm) by substances. It determines the concentration of the analyte by measuring the absorbance of a sample solution at specific wavelengths, applying the Beer-Lambert Law. Widely used in fields such as chemistry, life sciences, environmental monitoring, food testing, pharmaceuticals, and materials science, it is a core piece of equipment for routine laboratory analysis.