FP640火焰光度计（英文出口）

1.1 Introduction The flame photometer is an analytical instrument based on the principle that the emission spectrum decides the element. When NaCl, for example, is burned, the flame shows the color of yellow. The reason is that the outer electrons, of the Na atom is generated to a higher level by the flame energy, and when it returns to the normal level, it emits the light spectrum with the specific wavelength---yellow light spectrum with a main wave of 5893A°. The flame photometer is an instrument to measure the intensity of this light spectrum to determine the concentration of the measured element. The flame photometer has the advantage of fast analysis and high sensitivity with little sample consumption. For these reasons, it has been extensively employed in such fields as clinical examination, fertilizer and soil analysis, as well as chemical industry. Theoretically, the intensity of the emitted light spectrum is directly reportional to the concentration of the element. The generated energy, however, will affect the result, so this principle is applicable only when the intensity is low. FP-640’s range: when used in clinical examination is: K 0.02mmol/L-0.08mmol/L, Na 1.20mmol/L-1.80mmol/L; when used in other circumstances, the range can be expanded to meet the need reasonability.