Sensitive and accurate determination of REEs using a high-efficiency miniaturized ultrasonic nebulization sampling system coupled with the inductively coupled plasma mass spectrometer

Abstract

The sensitive and accurate determination of rare-earth elements (REEs) is of great significance in the fields of materials, geology, ecotoxicology, environmental safety and human health. However, the conventional pneumatic nebulization...

Dried Blood Spots and Miniaturized Ultrasonic Nebulization Microplasma Optical Emission Spectrometry for Point-of-Care Testing of Blood Lithium

“…Recently, various designs of microplasma-based optical emission spectrometry (MP-OES) have been coupled with innovative sample introduction techniques and are widely used for the qualitative and quantitative analyses of biological molecules and metal ions in complex matrix samples. − Ultrasonic nebulization is characterized by uniform and fine droplet size, high nebulization efficiency, and low power consumption, which is an attractive sample introduction technique in the field of Li analysis using MP-OES. , Compared to pneumatic nebulization, ultrasonic nebulization generates a homogeneous aerosol with a smaller size, can nebulize solutions absorbed on solids such as filer paper, absorbent cotton swabs, and sponges, which is more suitable as a sample introduction method for DBS. Increased interest in ultrasonic nebulization MP-OES has studies typically focused on extending this technique for the detection of more elements, ,, with the result that its combination with DBS sample collection and introduction for the POCT of blood Li has never been realized.…”