L12: Wet Digestion for AAS Sample Preparation - Analytical Spectroscopy скачать в хорошем качестве

L12: Wet Digestion for AAS Sample Preparation - Analytical Spectroscopy

In analytical chemistry, "wet digestion" refers to a technique where a solid sample is dissolved into a liquid solution by chemically breaking down its matrix using a combination of heat and strong acids, typically to prepare it for analysis by measuring specific elements or compounds within the sample; essentially, it's a process of converting a solid sample into a liquid form suitable for analysis by dissolving it with a chemical reagent, usually an acid, with the application of heat. A sample is placed in a suitable container, mixed with a chosen acid (or acid mixture), and heated to facilitate the breakdown of the sample matrix, allowing the analytes of interest to dissolve into the solution. Wet digestion methods for elemental analysis involve the chemical degradation of sample matrices in solution, usually with a combination of acids to increase solubility.