The colorimeter is a commonly used analyzer in laboratories and laboratories at all levels. It is most popular among analysts at all levels because of its low price, simple operation, convenient use, a wide range of use, and high accuracy and precision. The sensitivity is related to the characteristics of the instrument – the luminous intensity …
How to Calibrate the Wavelength Error of Colorimeter? Read More »
Ultraviolet and visible light range (UV/VIS) is widely applied in research, production and quality control for the classification and study of substances. UV/VIS spectroscopy is based on the absorption of light by a sample. Depending on the amount of light and its wavelength absorbed by the sample, valuable information can be obtained, such as the …
How to Use the Colorimeter to Determine Concentration? Read More »
In a basic biology lab class, a spectrophotometer appears pretty robust and easy to use. That’s still the case for the most part, despite the increasing sophistication of the instruments—some covering wavelengths from the near-infrared (NIR) through ultraviolet (UV). To get the most accurate results. In this article, we will explore ways to avoid problems …
How to Troubleshoot the Color spectrophotometer？ Read More »
Transmittance accuracy refers to the difference between the measured value of a sample with a standard transmittance value and the nominal transmittance value of the standard sample by a colorimeter without considering random errors. When the instrument is in a working state, the light source should be stable without flickering. When the wavelength is set at …
How to Eliminate the Transmittance Difference of a Colorimeter? Read More »
The appearance of pocket colorimeters solved the problem of spectroscopic qualitative and quantitative testing of trace samples. Based on this feature, this type of instrument is widely used in biological, medical, and other fields where the sample volume is sparse and expensive. The unique feature of the micro-volume colorimeter is that it requires very little …
The theory of chromaticity is relatively mature, and its application in the field of cultural relics protection and restoration has been developed. The restoration effect of ancient ceramics is greatly affected by the light source. The light source of the restoration room does not match the light source of the exhibition hall, which may lead …
Application Pocket Colorimeters in Ancient Ceramics? Read More »
Details on the preparation of fully optimized instruments Before the colorimeter is used, relatively complicated preparations of other equipment, raw materials and conditions are required. This preparation stage plays a fundamental role in the operation and measurement of the caliber 4mm pocket colorimeter. The operator should first ensure the adaptability of the ring term during the …
The function of the colorimeter detector is to convert light of different intensities into electrical signals proportional to it, and then send the power to the star measuring instrument for processing. There are three types of photocells, photocells and photomultipliers. Among them, the most common is photocell, and the best performance is photomultiplier tube, colorimeter …
How to Fast Diagnosis and Analysis of Colorimeter Fault? Read More »
Influence of interference filter on verification optical path Since the wavelength peak of the interference filter changes with the incident angle, it must be ensured that the detection is completed at the angle of normal incidence of parallel light. At the same time, the interference filter must be properly used and maintained, and it must …
The colorimeter is an essential analytical instrument in drug analysis. We now give some suggestions to the operator on the problems encountered in the installation, debugging, maintenance, and testing of the instrument. Issues that should be noted Linearity of instrument photometric It is well known that light absorption analysis must conform to the linear relationship of …
