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Synopsis

Analytical chemistry serves as the cornerstone of modern chemical science, providing the tools and methods necessary to identify the composition and quantity of substances in a wide range of materials. It plays a vital role across numerous scientific disciplines, from environmental monitoring and medical diagnostics to industrial quality control and forensic investigations. The foundation of analytical chemistry lies in its ability to produce reliable, accurate, and reproducible data that informs scientific decisions and supports technological innovation. 
The scope of analytical chemistry is broad and continues to evolve. It encompasses both qualitative analysis, which seeks to determine what substances are present in a sample, and quantitative analysis, which focuses on how much of each component exists. The discipline is further divided into classical methods and instrumental techniques. Classical methods, such as gravimetric and titrimetric analysis, rely on chemical reactions and physical measurements like mass and volume. Instrumental methods, on the other hand, use complex devices to measure properties such as absorbance, conductivity, or electrical potential, offering faster, more sensitive, and more selective analyses. 
A critical aspect of analytical chemistry is the systematic approach known as the analytical process. This begins with the formulation of a clear analytical question and proceeds through sample collection, preparation, analysis, and data interpretation. Every step must be carefully controlled and validated to ensure meaningful results. Method validation is essential, involving the assessment of parameters such as precision, accuracy, specificity, and detection limits. These criteria help determine whether a particular method is suitable for its intended purpose.

Durée: environ 2 heures (01:48:35)
Date de publication: 14/04/2025; Unabridged; Copyright Year: — Copyright Statment: —

• Science et Technologie