The QED Environmental Systems Combo Core soil sampler is a single-use solution for field preservation VOC analysis. The Combo Core system is set to succeed the Terra Core soil sampling tool, specifically designed for collecting core samples for VOC analysis using field preservation. The Combo Core is molded from virgin-grade polypropylene and is the first tool from QED that carries the PFAS-free designation, making it useful for the collection of soil samples for PFAS analysis under EPA Method 537M. The system is also useful for the collection of VOCs and SVOCs under EPA Method 8260 and EPA Method 8270 respectively. The new sampler retains a T-shaped handle of the original and offers updated benefits to the end user. The Combo Core can collect both 5- and 10-gram samples from a single tool. To switch between the two, sampling technicians only need to lift and twis