Hyphenated systems based on detection by optical emission spectrometry in determination of metals and metalloids species

Hydride generation (HG) has become a widely used technique for efficient analyte introduction in optical emission spectrometry, although only few hyphenated systems using this technique have been developed. It was decided to fill this gap using a modified spray chamber that allows with conventional nebulizer and/or as hydride generator, i.e. the Multi-mode Sample Introduction System (MSIS). The MSIS unit was used as an interface between high-performance liquid chromatography (HPLC) and inductively coupled plasma optical emission spectrometry (ICP OES) or microwave induced plasma optical emission spectrometry (MIP OES). In this way, hyphenated techniques were designed, based on three modes of operation of the MSIS chamber: (1) hydride generation for the determination of metalloid species occurring as anions and forming volatile hydrides, (2) conventional sputtering for the determination of metal species occurring as cations, and (3) dual mode for the simultaneous determination of metal and metalloid species occurring as cations and anions. The article is based on the doctoral dissertation of Jędrzej Proch entitled: "Hyphenated systems based on detection by optical emission spectrometry in determination of metals and metalloids species”, distinguished by the Discipline Council of Chemical Sciences at Adam Mickiewicz University and awarded by the Committee of Analytical Chemistry of the Polish Academy of Sciences in 2024 in the competition for the best doctoral dissertation in analytical spectrometry, the prize funded by MS Spektrum.