The UV11II series UV visible spectrophotometer includes three models: UV1101II (1nm bandwidth), UV1102II (2nm bandwidth), and UV1100II (4nm bandwidth). This series of models has complete functions, using Seya Namioka high-performance monochromator, quasi dual beam design, and unique features such as GLP/GMP guidance and programmed automatic sample suction.

Tianmei UV Visible Spectrophotometer UV11II SeriesMain technical features:

Adopting concave grating technology processed by internationally renowned manufacturers, simplifying the system's optical path structure, improving luminous flux, and reducing stray light.

Long life quartz coated optical components ensure that each optical path component can operate normally for a long time in a relatively wide environment.

Imported tungsten and deuterium lamp light sources have an average lifespan of up to 2000 hours, which can effectively improve the accuracy and reliability of measurement results.

Imported high-quality silicon photodiodes can ensure a wide linear quantitative measurement range.

CE design specifications and superior heat dissipation system design ensure that the instrument can work for a long time.

Meets the EMC safety testing requirements of EU LVD61326 and IEC61010, with excellent electrical safety and anti-interference capabilities.

The instrument host software has built-in GLP/GMP guidance function, which facilitates users to regularly check the performance status of the host, ensuring the authenticity and reliability of measurement results.

Optional self-developed PC software (UV Analyst) is available for full control of the UV11II series, with easy operation and powerful data processing capabilities.

Tianmei UV Visible Spectrophotometer UV11II SeriesApplication example:

Chymotrypsin belongs to the protein degrading enzyme class of drugs, which can promote the digestion and clearance of blood clots, purulent secretions, and necrotic tissues in the body. At 25 ℃, the absorbance changes and activity values of chymotrypsin catalyzed reaction were monitored and measured every 30 seconds using a UV visible spectrophotometer.

UV1101 has a bandwidth of 1nm and is an economical model mainly developed and designed by Shanghai Tianmei Scientific Instrument Co., Ltd. for pharmaceutical enterprises. It has functions such as dynamic monitoring, spectral scanning, and photometric measurement, with a dynamic scanning interval of 0.1-100 seconds and a scanning time of up to 24 hours; In addition, the optional UV Analyst PC software can also calculate the linear regression coefficients of automatic enzyme activity values and photometric changes, which is extremely convenient and very suitable for the analysis and detection of protease samples. According to the current pharmacopoeia method, a UV1101 spectrophotometer was used to monitor the changes in absorbance and determine the activity value of chymotrypsin catalytic reaction. The measurement results are shown as follows: