Computer-oriented automation in chemical analysis of soils

Abstract

The requirements of equipment to extend the Technicon system of automated analysis to provide digital results for computation are discussed. A system of commercial modules, which permits peak values to be sensed, digitised and transmitted to either a computer or a paper tape punch, is described. Regression methods are used to fit calibration graphs for accurate interpolation of unknown samples. Further advantage is gained from the system if subsequent calculations are to be made on the computed concentrations.