Use of Ultrasonic Nebulization with ICP‐AES for Enhanced Detection of Regulated Elements in Toys

This application note will examine the use of an efficient ultrasonic nebulizer (USN) with axial‐viewing ICP‐AES for enhanced detection of the elements in toys. Experimental parameters include ultrasonic nebulizer installation steps to the host ICP‐AES instrument, sample preparation in dilute hydrochloric acid, reagent addition for improved measurement of boron (D‐mannitol) and mercury (L‐cysteine), and optimization of ICP‐AES power and gas flows when using the USN. Figures of merit will include instrument detection and quantitation limits and measured concentrations of regulated elements from a variety of toy samples.