Related Experiment Video
Updated: Oct 1, 2026

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
Determination of trace level of selenium and mercury in photographic emulsions by atomic spectroscopy techniques
Emanuele Magi1, Francesco Soggia, Roberto Frache
1Dipartimento di Chimica e Chimica Industriale, Sezione di Chimica Analitica ed Ambientale, Università di Genova, Via Dodecaneso 31, 16146 Genova, Italy. magie@chimica.unige.it
Abstract:
Trace level of selenium and mercury in photographic emulsion are used to improve photographic properties. The presence of silver halide in photographic emulsion does not allow the application of the most common analytical methods such as Hydride Generation Atomic Absorption Spectrometry (HG-AAS) and cold vapour Atomic Absorption Spectrometry (CV-AAS). Besides, silver removal was not quantitative, leading to a significant loss of the analytes and low reproducibility. The present work suggest the use of inductively coupled plasma Atomic Emission Spectrometry (ICP-AES) equipped with Ultrasonic Nebulizer (USN) for direct aqueous samples analysis at microgram l-1 level (d.l. 5.1 ppb for Hg and 6.1 ppb for Se).
Related Concept Videos
Atomic Emission Spectroscopy: Lab
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Instrumentation
Atomic Fluorescence Spectroscopy
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...
Atomic Spectroscopy: Absorption, Emission, and Fluorescence

