Nanodrop Cheap Data Function portable car paint medicine color spectrophotometer types price
Product Description
Introduction
Principle
The principle of spectrophotometric analysis is making use of different wavelength of light showed the phenomenon of selective absorption of the substance on carrying out qualitative and quantitative analysis. According to the relative measuring principle, firstly set the reference sample's (solvent, distilled water, air, etc.) transmissivity is 100%, and then measuring the under test sample's transmissivity for achieving the aim of analysis. The relationship of between measured transmissivity and under test sample's concentration, to a certain extent, it is complying with the Lambert Beer's law. A=KCL=logI/Io T=I/I0
Of which: T transmissivity A absorbance C solution concentration K absorption coefficient of solution L optical path length of solution I transmitted light intensity Io incident light intensity
2. Usage It's available for physics, chemistry, medicine, biology, edicine, geology and other disciplines to conduct scientific research. It is widely used in chemical,pharmaceutical,biochemical, metallurgical, light industry, material, environment protection, medical test and so on, as well as it is the one of most important quality control instrument in the analysis industry. Also, it is essential equipment in conventional laboratory.
Features
72, 75 series automatic wavelength spectrophotometer is a combination of modern precision optics and the latest micro-electronics and other high-tech, research and development of novel spectrophotometer. This has the following features: 1) With low stray light, high-resolution raster-based single-beam optical structure, the apparatus have good stability, reproducibility, linearity and precision measurement of photometric reading. A smaller spectral bandwidth can meet the requirements of routine analysis test item. 2) Making use of the most optical design and the latest microprocessor technology, it have functions of automatically set the wavelength, light source switch position automatic conversion, wavelength auto-calibration, 0%T and 100%T automatic adjustment, neon light and tungsten light switch automatic controlled.etc. 3) The host not only has the luminosity measurement function (testing the absorbance or transmissivity under a fixed-wavelength), but also has the quantitative test function. Making use of standard comparison method, standard coefficient method, and linear regression analysis method (screen displays a linear regression equation and the related coefficient) to direct to test the reference sample's concentration. In addition, you can store, call, and remove the linear regression equation. 4) 2×16 LCD digital display apparatus can be bright and clear display transmissivity, absorbance and concentration, etc. it improves the accuracy of instrument reading. 5) Equipped with the standard RS-232 bi-directional communication interface, the instrument can not only connect serial printers, but also can be connected to a computer (running SPD user application software on the Windows operating system). With luminosity measurement (T, A), quantitative measurement (T, F), time scanning, spectral scanning application functions and so on, the instrument can be data collection, preservation and call. Batching Performance Requirements and Specifications
