Chromatography Sample Prep

Overview of GC-MS in Environmental Pollutant Analysis Gas chromatography-mass spectrometry (GC-MS) is a cornerstone technique for detecting and quantifying organic pollutants in environmental matrices. Its high sensitivity, selectivity, and ability to separate complex mixtures make it ideal for analyzing trace-level contaminants in soil, water, and air. Common target analytes include polycyclic aromatic hydrocarbons (PAHs), polychlorinated […]

The Critical Role of Sample Cleanup in Chromatography Analysis In analytical chemistry, sample preparation is often the most critical yet overlooked step in achieving reliable chromatography results. As Dr. Xu, product manager at Poseidon Scientific, I’ve witnessed firsthand how proper sample cleanup strategies can make or break analytical outcomes. The fundamental truth is this: no

Overview of Automated SPE Systems Automated Solid Phase Extraction (SPE) systems represent a significant advancement in modern laboratory workflows, transforming what was once a labor-intensive manual process into a streamlined, high-efficiency operation. As laboratories face increasing sample volumes and regulatory pressures, automated SPE workstations have become essential tools for maintaining analytical quality while improving throughput.

What Are Matrix Effects? Matrix effects represent one of the most significant challenges in modern analytical chemistry, particularly in LC-MS workflows. These effects occur when co-extracted components from the sample matrix interfere with the ionization process of target analytes in the mass spectrometer. As noted in the literature, “An undesirable feature of atmospheric pressure ionization-MS