SAMPLE ATOMIZER FOR FLAME ATOMIC ABSORPTION ANALYSIS

摘要

PURPOSE:To enable direct analysis of a highly dense sample, by providing a disperser which finely granulates a sample solution released in a mist from a nozzle of an atomizer to change the gap between the nozzle and the disperser as desired by a gap changing means. CONSTITUTION:Applying a depression phenomena caused by an auxiliary fuel gas running in a high-speed flow, an atomizer 1 turns a liquid sample 2 in a conical mist 4 with uneven particle size through a tube 3 and releases it into a mixing chamber 5 of a fuel and the auxiliary fuel gas. The misty sample 2 is blown against a spherical disperser 6 as strongly as released, dispersed into fine particles by a phenomenon such as resonance caused there and is introduced into a flame 9 of a burner 8 in the form of a mist 7 in a uniform size. As subjected to a thermal decomposition or the like, the misty sample 7 thus introduced into the flame 9 renders metal elements contained in an atomic vapor and to measure the absorption of light with the wavelength intrinsic to the metal passing through the flame 9. A nozzle section of the atomizer 1 and the disperser 6 are regulated with a gap regulating mechanism 10, thereby making the amount of the sample to be introduced variable.