General Chemistry

Atomic Absorption Spectrometry (AAS) is a technique used for the quantitative analysis of elements in a sample based on the absorption of specific wavelengths of light. In AAS experiments, the quality of water is critical for various applications such as sample preparation, dilution, and the preparation of standards. High-purity water is essential to prevent interference with the elemental analysis and ensure the accuracy of AAS results.

Flame Atomic Absorption Spectrometry (FAAS) and Graphite Furnace Atomic Absorption Spectrometry (GFAAS) techniques are primarily focused on detecting and quantifying trace elements in samples. These techniques do not typically involve the use of endotoxin standards. Endotoxins, which are components of the outer membrane of Gram-negative bacteria, are more relevant in biological and pharmaceutical applications, particularly in the context of cell culture, molecular biology, and clinical diagnostics. In analytical techniques like FAAS and GFAAS, the emphasis is on minimizing contamination and interference with the sample matrix to ensure accurate elemental analysis. Therefore, the water quality standards for FAAS and GFAAS usually prioritize factors such as resistivity, total organic carbon (TOC), and particulate filtration rather than endotoxin control.