LIBS Technology: Precise Detection of Antimony and Harmful Substances in PVC
LIBS has emerged as a versatile and powerful analytical tool for material analysis. By leveraging its ability to detect and quantify elements directly and rapidly, LIBS has found applications in various industries. One area where this technology demonstrates exceptional potential is in analyzing polyvinyl chloride (PVC), a widely used polymer in construction, packaging, and consumer goods. As environmental awareness grows, understanding and controlling the composition of PVC is becoming increasingly important.
In response to customer demands, our team has successfully utilized our Sci-Trace to directly measure the presence of antimony (Sb) in PVC with detailed accuracy. Antimony, or more specifically its oxide, used to be added to PVC as a flame retardant. However, its content can reach levels as high as 5%, which raises concerns due to its toxicity and potential environmental impact. By applying our LIBS, we have been able to accurately detect antimony in PVC samples, providing critical data about its composition.
Detection of Sb in PVC samples
In addition to antimony, we have measured other potentially harmful substances present in PVC, such as barium, zinc, and titanium. Barium is of particular concern due to its toxic potential, while zinc and titanium, though less harmful, are also noteworthy due to their role in stabilizing PVC and preventing UV degradation, respectively. While these additives are essential for the material’s performance, their presence raises important health and environmental safety considerations.
Measured samples (PVC chips)
The composition of PVC can be comprehensively analyzed through continuous in-line measurements, which offers a distinct advantage over methods such as hand-held LIBS, by enabling real-time monitoring directly on the production line, ensuring accurate and efficient quality control.
These results showcase our capability to tackle even the most challenging analytical demands, delivering the data needed to understand and monitor the presence of potentially harmful substances. By demonstrating the ability to measure these critical elements with precision and efficiency, our LIBS technology sets a new standard for material analysis, equipping industries with the tools needed to align with regulatory requirements, prioritize sustainability, and innovate for the future.
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