Lead Isotope Ratios in Cigars for Authenticity Assessment

This technical report discusses the application of lead isotope ratios (IR) in determining the authenticity of cigars using inductively coupled plasma mass spectrometry (ICP-MS). The report outlines the challenge of counterfeit cigars and the economic impact of such products, particularly those from renowned regions like Cuba. It details the methodology for measuring lead isotopes, emphasizing the significance of isotopic composition in tracing the geographic origin of agricultural products. The report presents the capabilities of the PlasmaQuant MS Elite instrument, including its operational parameters and sample preparation techniques. It explains the optimization of lead isotope ratio measurements, highlighting the importance of dwell times and the calibration methods used to enhance precision. The findings indicate that the isotopic analysis can effectively differentiate cigars based on their origin, thus providing a reliable method for authenticity verification. The document serves as a comprehensive guide for laboratories aiming to implement this technique in their quality control processes.