ON-LINE ANALYSIS APPARATUS FOR TOTAL PHOSPHORUS AND TOTAL NITROGEN

摘要

An on-line apparatus for analyzing the total concentration of phosphorus and nitrogen is provided to allow a sample and a reagent to be moved more rapidly and to be supplied quantitatively and to prevent the deterioration of a reagent, thereby improving the precision of measurement and reducing the error of measurement due to the operation for a long time. An apparatus for analyzing the total concentration of phosphorus and nitrogen comprises a sample supply part(30) which comprises a sample distribution part having a plurality of supply paths provided with a valve for distributing a sample and a reagent selectively, and a main channel connected with the each supply path to guide the distributed sample and reagent; a photo-interrupter(50) which controls the operation of a pump providing the pump pressure to the main channel so as to the sample and the reagent to be moved quantitatively through the sample supply part; and a measurement part(80) which measures the total concentration of phosphorus and nitrogen selectively.