Matrix effect in bioanalytical assay development using supercritical fluid chromatography-mass spectrometry.

Area of Science:

• Analytical Chemistry
• Chromatography
• Mass Spectrometry

Background:

• Matrix effect (ME) is a common challenge in bioanalysis, arising from coeluting compounds that suppress or enhance analyte ionization.
• Accurate, precise, and sensitive bioanalytical results depend on the evaluation and control of ME during method development.

Purpose of the Study:

• To review the current status of ME evaluation and mitigation in supercritical fluid chromatography-mass spectrometry (SFC-MS) bioanalytical methods.
• To highlight the specific considerations for ME in SFC-MS compared to other chromatographic techniques.

Main Methods:

• Overview of ME phenomenon and evaluation methods in bioanalysis.
• Detailed discussion of factors influencing ME in SFC-MS, with an emphasis on SFC.
• Literature review of ME evaluation in targeted SFC-MS bioanalytical methods.

Main Results:

• ME is a significant factor affecting ionization in SFC-MS.
• Specific chromatographic conditions and sample matrices in SFC influence ME.
• Various strategies exist for evaluating and mitigating ME in SFC-MS.

Conclusions:

• Robust instrumentation, effective sample preparation, and high separation selectivity are fundamental for reliable SFC-MS methods.
• Proactive evaluation and mitigation of ME are essential for developing dependable SFC-MS bioanalytical assays.
• Understanding ME in SFC-MS is critical for advancing its application in biological sample analysis.