Enhanced Raman Detection of Nitrite by Ag/NH2‐Ni‐MOFs: Synergistic Polarization of Internal and External Electric Fields

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This study reveals improved nitrite detection in water using enhanced Raman methods, suggesting effective pollutant assessment.

The detection limit for nitrite achieved is 3.76 × 10 −9 mol L −1, significantly lower than the national standard.
Raman peak intensity of azo compounds increases by 2.20 times through internal and external electric fields.
The method accurately detects nitrite concentrations ranging from 10 −8 to 10 −3 mol L −1 in water.
This approach demonstrates the potential for high-performance detection of various water pollutants.

Sun et al. (2025) studied this question.

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