Related Experiment Video
Updated: Sep 27, 2025

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
Published on: February 16, 2022
Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation
Cristina Craciun1,2, Florin Andrei1,3, Anca Bonciu1,2
1Lasers Department, National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania.
Abstract:
This work is focused on the application of a laser-based technique, i.e., matrix-assisted pulsed laser evaporation (MAPLE) for the development of electrochemical sensors aimed at the detection of nitrites in water. Commercial carbon-based screen-printed electrodes were modified by MAPLE via the application of a newly developed composite coating with different concentrations of carbon nanotubes (CNTs), chitosan, and iron (II) phthalocyanine (C32H16FeN8). The performance of the newly fabricated composite coatings was evaluated both by investigating the morphology and surface chemistry of the coating, and by determining the electro-catalytic oxidation properties of nitrite with bare and modified commercial carbon-based screen-printed electrode. It was found that the combined effect of CNTs with chitosan and C32H16FeN8 significantly improves the electrochemical response towards the oxidation of nitrite. In addition, the MAPLE modified screen-printed electrodes have a limit of detection of 0.12 µM, which make them extremely useful for the detection of nitrite traces.
More Related Videos
09:22Atmospheric-pressure Molecular Imaging of Biological Tissues and Biofilms by LAESI Mass Spectrometry
Published on: September 3, 2010
08:25Measuring Nitrite and Nitrate, Metabolites in the Nitric Oxide Pathway, in Biological Materials using the Chemiluminescence Method
Published on: December 25, 2016
Related Concept Videos
Matrix-Assisted Laser Desorption Ionization (MALDI)
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...
Gas Chromatography: Types of Detectors-II
Atomic Emission Spectroscopy: Lab
Atomic Emission Spectroscopy: Instrumentation