FP640火焰光度计英文使用说明书

Flame Photometer applies the emission spectrum as the basic principle, which uses the flame heat and excites part of the atoms in alkaline earth metal. The atoms absorb energy and transit to the previous energy level; when it drops to the normal energy level, it has to release energy. The energy released has only the spectral characteristics, namely, a certain wavelength range. For example, place salt in the flame, and it will display yellow color, due to the sodium atoms in flames falling back to the normal energy level and displaying yellow spectrum. It is often called “flame color reaction”. Different alkali metals or alkaline earth metals in the flame display different colors. Qualitative tests can be carried out together with different filters. The flame color is proportional to the concentration of atoms contained in the solution, which constitutes a quantitative test basis. This method is typically referred to as flame photometry, and this type of equipment is known as flame photometer.