Preanalitikus

Preanalitikus refers to the stage of analysis that occurs before the main analytical process begins. This phase is crucial for ensuring the accuracy and reliability of subsequent analytical findings. It involves several key steps that prepare the sample and define the analytical objectives.

The initial aspects of preanalitikus include sample collection and proper handling. The way a sample is collected, transported, and stored can significantly impact its composition and therefore the analytical results. Contamination, degradation, or changes in the sample's state during these early stages can render the entire analytical effort futile. Ensuring the sample is representative of the material being studied is also a critical preanalytical consideration.

Following sample collection, the preanalitikus phase involves sample preparation. This can encompass a range of techniques depending on the nature of the sample and the intended analysis. Methods such as dilution, extraction, filtration, or derivatization may be employed to make the sample suitable for the chosen analytical instrument or technique. The goal is to isolate the analyte of interest, remove interfering substances, and present the analyte in a form that can be accurately measured.

Furthermore, the preanalitikus stage includes defining the analytical strategy. This involves selecting the appropriate analytical method, calibrating instruments, and establishing quality control measures. Understanding the limitations of the chosen method and potential sources of error is also part of this preparatory phase. A well-executed preanalitikus process lays the groundwork for successful and meaningful analytical outcomes.