What Is Method Validation?

Method validation refers to the comprehensive evaluation conducted to scientifically demonstrate that an analytical method provides suitable, reliable, accurate, and reproducible results for its intended use. In the analysis processes of pharmaceuticals, medical devices, biocidal products, cosmetics, chemical products, and biotechnology products, method validation is one of the fundamental elements of quality assurance systems.

It is not sufficient for an analytical method to merely produce results; the accuracy, precision, and reliability of the results obtained must also be demonstrated. For this reason, method validation plays a critical role in product development, quality control, and regulatory processes.

At NanoTox, within our Physico-Chemical Test Unit, we offer comprehensive method validation services in accordance with international guidelines and GLP principles.

The Purpose of Method Validation Studies

Method validation studies aim to confirm that the developed or used analytical method yields reliable results under specified analytical conditions.

Through these studies:

• The suitability of the analytical method is confirmed,
• The reliability of the results is demonstrated,
• Interlaboratory comparability is ensured,
• Regulatory requirements are met,
• Quality assurance processes are supported.

The data obtained demonstrate the scientific validity of the analytical results.

Why Is Method Validation Important?

Analytical results are of critical importance for product release decisions, quality control processes, and regulatory submissions. Data obtained using methods whose validity has not been proven can lead to incorrect decisions.

For this reason, method validation:

• In product quality control studies,
• In stability studies,
• In R&D processes,
• In regulatory submissions,
• In routine laboratory analyses

is either a mandatory or recommended practice.

Validation Parameters Evaluated

Within the scope of method validation studies, numerous parameters that demonstrate the performance of the analytical method are evaluated.

The main validation criteria are:

• Accuracy
• Precision
• Repeatability
• Intermediate Precision
• Specificity
• Linearity
• Range
• Limit of Detection (LOD)
• Limit of Quantification (LOQ)
• Robustness

These parameters scientifically demonstrate the method’s suitability for its intended use.

Studies in Compliance with International Guidelines

Method validation studies conducted at NanoTox are carried out in accordance with internationally recognized guidelines.

Key reference documents:

• ICH Q2(R2) Validation of Analytical Procedures
• USP <1225> Validation of Compendial Procedures
• European Pharmacopoeia requirements
• FDA and EMA guidance documents
• ISO standards

Thanks to this approach, the data obtained meet the quality standards recognized by international regulatory authorities.

Reliable Method Validation Services with NanoTox

NanoTox conducts method validation studies in accordance with international quality standards, leveraging its expert analytical chemistry team, advanced instrumentation infrastructure, and GLP-compliant operational system. We provide reliable and regulatory-compliant analytical data required in the development processes of pharmaceuticals, medical devices, biocidal products, and chemical products.

Please contact NanoTox for detailed information about our method validation studies and other physicochemical analysis services.