AUTHOR=Deb Sushmita , Lewicka-Szczebak Dominika TITLE=Simplified bacterial denitrification method using Stenotrophomonas nitritireducens for nitrite dual isotope analysis in low-concentration environmental samples JOURNAL=Frontiers in Environmental Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2025.1536882 DOI=10.3389/fenvs.2025.1536882 ISSN=2296-665X