While primarily known as a fluorometric probe for nitrites, 2,3-Diaminonaphthalene (CAS 771-97-1) also plays a role in the analysis of other trace elements, notably selenium. This indirect application highlights the broader utility of this versatile chemical compound. NINGBO INNO PHARMCHEM CO.,LTD. provides this reagent for researchers exploring these specialized analytical techniques.

The determination of selenium content often involves converting it into a form that can be detected by sensitive analytical methods. In some established procedures, selenium is first reduced to selenite. Subsequently, selenite reacts with 2,3-Diaminonaphthalene under specific conditions to form the fluorescent 1H-naphthotriazole, similar to the nitrite assay. The fluorescence intensity of this product is then measured to quantify the amount of selenium in the original sample.

This method offers a sensitive approach to trace selenium analysis, which is important in various fields, including environmental science, nutritional studies, and toxicology. Selenium is an essential trace element, but its levels must be carefully monitored due to potential toxicity at higher concentrations. Analytical methods employing reagents like 2,3-Diaminonaphthalene are crucial for accurate dietary assessments and environmental impact studies.

The contribution of 2,3-Diaminonaphthalene to selenium determination underscores its value as more than just a nitrite probe. For laboratories engaged in trace element analysis, acquiring high-quality 2,3-Diaminonaphthalene from NINGBO INNO PHARMCHEM CO.,LTD. provides a reliable tool for these specialized investigations. It exemplifies how a single chemical can support diverse and critical scientific analyses.