Resprep PFAS SPE Cartridge with Filter Aid

Introduction to the Resprep PFAS SPE Cartridge with Filter Aid, 6 mL, Filter Aid 2000 mg/WAX 150 mg/GCB 50 mg, 30-pk (Catalog No.: 28931)

The Resprep PFAS SPE Cartridge with Filter Aid (Catalog No.: 28931) is an upgraded version of the Resprep PFAS cartridge, specifically designed to handle “complex” sample matrices containing high levels of suspended solids. This product retains the advantages of the dual-layer cartridge—combining both WAX and carbon—while incorporating factory-packed filter aid to optimize extraction efficiency and prevent clogging.

Key Features:

•Dual-layer cartridge: Integrates both WAX and carbon layers in a single cartridge, enabling simultaneous SPE extraction and carbon cleanup. This simplifies the workflow and reduces processing time.

•Ultra-clean sorbents: Both WAX and carbon layers are manufactured with high purity. Each batch of WAX sorbent is rigorously tested following EPA Method 1633 to ensure no background PFAS, meeting method detection limit requirements.

•Pre-packed filter aid: This is the main differentiator from the basic Resprep PFAS cartridge (Catalog No.: 28930). The filter aid is designed to prevent clogging caused by suspended solids in the sample, ensuring stable sample flow and allowing full sample volume to be processed in one extraction.

•Compatible with multiple systems: The Resprep PFAS Cartridge with Filter Aid can be used with both vacuum and automated extraction systems.

Benefits:

•Optimized extraction efficiency: The pre-packed filter aid ensures smooth sample flow even with “complex” matrices containing high levels of suspended solids, enabling complete PFAS extraction.

•Time and labor savings: Using a single cartridge with pre-packed filter aid reduces the number of handling steps, cuts down sample prep time, and increases lab throughput.

•Minimized variability: Eliminates manual packing, reducing differences between technicians and ensuring more consistent and reliable results.

•Accurate analytical results: High-quality sorbents ensure clean extraction of samples, meeting accuracy and repeatability requirements of EPA Method 1633.

•Suitable for diverse sample matrices: The Resprep PFAS Cartridge with Filter Aid is ideal for PFAS analysis in complex matrices, including non-potable water, solids, biosolids, and tissues.

Proven Performance:

In a filtration efficiency comparison test, only the Resprep PFAS Cartridge with Filter Aid was able to extract the full 500 mL of diluted ASTM wastewater containing 100 mg/L of suspended solids without clogging. In contrast, manually packed WAX cartridges extracted less than half of the sample, and WAX cartridges without filter aid extracted less than one-tenth.

Experiments using the Resprep PFAS Cartridge demonstrated that the product meets or exceeds the requirements of EPA Method 1633. Calculated MDLs were below the reporting limits in Table 9 of the method. Accuracy of spiked samples ranged from 77% to 125%, meeting the criteria in Table 5, and repeatability was excellent, with RSD ≤ 25%.

Conclusion:

The Resprep PFAS SPE Cartridge with Filter Aid (Catalog No.: 28931) is the optimal solution for PFAS sample preparation in “complex” matrices. This product enhances extraction efficiency, saves time and labor, reduces variability, and ensures accurate analytical results.