This document provides information about industrial training on inductively coupled plasma optical emission spectrometry (ICP-OES). It discusses the theory behind ICP-OES, including that it is a type of emission spectroscopy that uses inductively coupled plasma to excite sample elements, and the intensity of emission is used to determine concentration. It also outlines the sample preparation, instrumentation components like the nebulizer and torch, operating procedures for the ICP-OES, an example analysis of fertilizer samples, and calculations for determining element concentrations.