Related Experiment Video
Updated: Jun 7, 2025

Fabrication of a Dipole-assisted Solid Phase Extraction Microchip for Trace Metal Analysis in Water Samples
Published on: August 7, 2016
Detection of chlorine in cement matrix using microwave-enhanced laser-induced breakdown spectroscopy
Abstract:
The detection of chloride in reinforced concrete, crucial for maintenance against damage from de-icing salt or seawater, is advanced by Laser-Induced Breakdown Spectroscopy (LIBS). This study demonstrates that integrating microwaves with LIBS enhances cement analysis, improving the signal-to-noise ratio by up to four times and extending the detection limit for chlorine to 0.17 ± 0.02 wt%. As a method, microwave-enhanced LIBS (MWE-LIBS) has existed for a decade, but in cement analysis, MWE-LIBS has been used for the first time in Cl I atomic emission measurements. This pioneering approach provides a more efficient alternative, marking a significant advancement in cement analysis.
More Related Videos
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
Gas Chromatography: Types of Detectors-I
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
Atomic Emission Spectroscopy: Lab
Raman Spectroscopy: Overview
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...

