rohrzelle for atomic absorption spectrophotometry.

摘要

A tube cell for flameless atomic absorption spectrophotometry has a transverse cross-section with the portion above a longitudinally extending line midway between the top and bottom of the tube cell having a smaller cross-sectional area than the portion below that line. The tube cell has an elongated aperture formed close to the bottom of the tube cell for inserting a probe or platform carrying a sample to be analyzed. The cross-section of the tube cell is shaped to maximize the size of the probe which can be used, and accordingly, the sample volume, while keeping the total cross-sectional area to a minimum in order to maximize chemical sensitivity. A number of different cross-sectional shapes are described including a triangular cross-section.