Quantification typically involves several steps: 1. Sample Collection: Collecting blood, urine, tissue, air, water, or soil samples. 2. Sample Preparation: Processing samples to isolate the substance of interest. 3. Analytical Techniques: Using methods like Gas Chromatography (GC), High-Performance Liquid Chromatography (HPLC), Mass Spectrometry (MS), and Atomic Absorption Spectroscopy (AAS) to measure toxin levels. 4. Data Interpretation: Analyzing the data to determine the concentration and potential impact of the toxin.