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A Review on Quality by Design Approach in Analytical Methods
The Quality by Design (QbD) approach for analytical method development, often referred to as , is a systematic, science-driven, and risk-based framework for developing robust and reliable analytical procedures . Unlike traditional "trial-and-error" methods, AQbD focuses on building quality into the method from the very beginning to ensure it is fit for its intended purpose throughout its entire lifecycle. Key Components of AQbD (QbD) Approach for Analytical Method Development
This is the foundation of the approach. It defines the predefined performance requirements—such as accuracy, precision, and sensitivity—that the method must meet to ensure the data is suitable for its intended use. A Review on Quality by Design Approach in
These are the input variables that significantly impact method performance, such as mobile phase pH, flow rate, or column temperature in chromatography. such as mobile phase pH
Implementing AQbD typically follows a structured, three-stage lifecycle model aligned with guidelines like USP and ICH Q14 :
The success of an AQbD approach relies on several interdependent core elements:
These are the measurable characteristics of the method output (e.g., resolution, retention time, peak tailing) that must be controlled to achieve the goals set in the ATP.