Ideas and methods to eliminate unstable faults The Colorimeter is one of the common analytical instruments and is widely used. Instability of indication value is also a common fault encountered by instrument users and testing personnel. For the colorimeter, “instability of the indication value” means that after the instrument is fully warmed up, the maximum …
How to Troubleshoot Single Beam Instability of colorimeter? Read More »
In JJG 178-2007 the colorimeter is divided into four grades of I, II, III, and IV according to the level of measurement performance. However, in the daily verification process, it is found that a large number of instruments have incomplete grade marks on the nameplates, which makes it difficult to judge the grade before the …
How to Judge and Divide the Level of the Colorimeter? Read More »
Now, the market has higher and higher requirements for product quality. It no longer only meets the internal quality of diammonium phosphate but also has higher requirements for external quality (particle size, color, etc.). At present, the diammonium phosphate sold on the market has various colors such as green, yellow, brown, black, natural color, etc. …
How to Use a Colorimeter to Measure the Chromaticity of Diammonium Phosphate? Read More »
The detection and determination of heavy metals in the area of analytics and drug control are important and demanding tasks, and, therefore, drug analysis and quality control require increasingly better analytical methods and procedures to solve specific problems in pharmaceuticals and in industrial production of medicines. A recent trend to obviate the difficulties of obtaining …
How to Use Colorimeter to Measure the Concentration of Heavy Metals? Read More »
Color gamut indicates the ability to display colors for a display system. Measurement of the color gamut in three-dimensional color space is important for a display system. Compared with the primary triangle in CIE XY or CIEu’v’ chromaticity diagram, the influence of brightness is considered, and the three-dimensional color space is more uniform, which is …
How to Measure Color Gamut Volume with a Colorimeter? Read More »
How red is red? In many display applications, there are strict requirements on the accuracy and precision of color measurement. To accurately measure color, its degree of difficulty is indeed beyond people’s imagination. The medical and aerospace fields have extremely demanding display requirements. Not only does it need to display the color truly and reliably …
Introduction Iron is one of the many minerals required by the human body. It is used in the manufacture of oxygen-carrying proteins, haemoglobin and myoglobin. A deficiency of iron in the body can leave a person feeling tired and listless, and can lead to a disorder called anemia. Many of the foods we eat contain …
Spectrophotometers designed specifically for the measurement of colored materials are at the center of any modern color formulation, color production, or color quality control system. Although these color spectrophotometers are designed to measure samples both accurately and repeatedly, they accomplish these measurements only within a range of applicable tolerances. Spectrophotometers are not perfect measuring devices, …
Frequency: Daily Any spill on, or around the instrument should be cleaned immediately. At the end of the day, turn off the instrument or disconnect the power source or the battery terminals as appropriate. Keep the cuvette chamber empty and closed when not in use. Cover the instrument after use. Store appropriately, protected from dust. …
The General Routine Maintenance for Colorimeters Read More »
Once all of the above have been put in place, the standardization can take place. A typical measurement routine is as follows: Select the correct measurement wavelength. Place the blank solution in the holder and set the absorbance display to zero, Insert the lowest concentration standard in the instrument and note the absorbance readout. Repeat …
How to Using Colorimeter to Making Measurements? Read More »
