Article ID Journal Published Year Pages File Type
1240611 Spectrochimica Acta Part B: Atomic Spectroscopy 2012 6 Pages PDF
Abstract

Carbon dioxide (CO2) is a main contributor to global warming, making up approximately 80% [1] of the greenhouse gases in the atmosphere. Therefore, a precise measurement of the atmospheric CO2 concentration is essential. Although a number of analytical techniques are available for measuring CO2 in air samples, laser induced breakdown spectroscopy (LIBS) offers a relatively simple and straightforward analysis which is why it was utilized in this study. LIBS requires a simple experimental setup and offers real-time carbon dioxide measurement. The strong C(I) emission line at 247.85 nm was selected for CO2 measurement, which yielded a detection limit of 36 ppm with a pulse energy of 145 mJ. Real-time measurement has been demonstrated: a single measurement can be made in 40 s with a relative standard deviation (RSD) of 3.6%.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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