Development History of Ultraviolet-Visible Spectrophotometer

Release time：2019-03-19

Ultraviolet-visible absorption spectrophotometer is a common analytical instrument based on ultraviolet-visible absorption spectrophotometry (Ultraviolet-visible absorption spectrophotometry). In the early years, people have concluded in practice that substances of different colours have different physical and chemical properties. According to these colour characteristics of substances, it can be analyzed and distinguished. For example, the content of a certain coloured substance can be estimated according to the colour depth of the substance. This is actually the embryonic form of ultraviolet-visible absorption spectrophotometry. In 1852, Beer put forward the basic law of spectrophotometry, the famous Lambert-Beer law, which laid the theoretical foundation of spectrophotometry. In 1854, Duboscq and Nessler applied this theory to the field of quantitative analytical chemistry and designed the first colorimeter. In 1918, the National Bureau of Standards made the first ultraviolet-visible spectrophotometer. Since then, the ultraviolet-visible spectrophotometer has been continuously improved. Various kinds of instruments, such as automatic recording, automatic printing, digital display, computer control, have emerged, which has improved the sensitivity and accuracy of the instrument and expanded its application scope. At present, on the basis of the development of electronics, computer and other related disciplines, spectrophotometer has developed rapidly and has more complete functions. It has been widely used in various fields of industry, agriculture, food, secondary health and scientific research, and has become a powerful means of detection in production and scientific research. Some advanced ultraviolet-visible spectrophotometers have the advantages of wide wavelength range, high wavelength resolution and automatic control.



Aoyi Instruments (Shanghai) Co., Ltd. is a company specializing in the research, development, design, production, sales and after-sales of modern laboratory analytical instruments. At present, the main products are: ultraviolet-visible spectrophotometer, visible spectrophotometer, dual-beam ultraviolet-visible spectrophotometer, dual-beam scanning ultraviolet-visible spectrophotometer, dual-beam scanning ultraviolet-visible spectrophotometer, which are suitable for high-end and common models of different applications to meet the needs of different industries in different experiments, and for each of them. Industry equipment selection, personnel training, commissioning and installation, etc. to provide all-round and multi-level high-quality services. Feiler has a professional independent R&D engineering team, which pursues excellence in product design and production management. The instrument system is easy to understand and simple in appearance. Aoyi has established a sales service network in most large and medium-sized cities in China. Its products are widely used in teaching, medical treatment, chemical industry, agriculture, electronics and other fields of scientific research.