DETECTION LIMITS AND ANALYTICAL INTERVALS OF THE REVERSE INDIRECT PROCEDURES IN ATOMIC ABSORPTION SPECTROMETRY

Authors

  • M. Alvarez Prieto Departamento de Análisis, Instituto de Materiales y Reactivos, Universidad de la Habana
  • H. Goenaga Infante Departamento de Análisis, Instituto de Materiales y Reactivos, Universidad de la Habana
  • G. Mora de la Cruz Departamento de Análisis, Instituto de Materiales y Reactivos, Universidad de la Habana

Abstract

A new classification of the indirect analytical proce­dures is presented. lt is based on the proportionality between the measured element signa! and the concentration of the analyte. They are classified in indirect procedures of direct and inverse propor­tionality. In the inverse indirect analytical procedures the concepts of limit of detection and analytical range are not directly applica­ble. Starting from this, new concepts derived from the established definitions for the direct analytical procedures are discussed. They are applied to a procedure for the determination of sulphur in sil­ver, by means of the flame atomic absorption spectromctry, meas­uring the barium signa!. Toe new dcfinitions of direct and invcrse limits of detection are proposed, with a discussion concerning their practica! importance. Also, the direct and inverse analytical ranges are defined. Sorne aspects related to the practica! importance of the detection limits and analytical ranges are discussed.

Published

2022-11-17

How to Cite

Alvarez Prieto, M. ., Goenaga Infante, H. ., & Mora de la Cruz, G. . (2022). DETECTION LIMITS AND ANALYTICAL INTERVALS OF THE REVERSE INDIRECT PROCEDURES IN ATOMIC ABSORPTION SPECTROMETRY. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) CHEMICAL SCIENCES JOURNAL, 28(1), 039-043. Retrieved from https://revista.cnic.edu.cu/index.php/RevQuim/article/view/2861

Issue

Section

Research articles