The Ion Suppression Risk Estimator (LC–MS) is an educational online simulator designed to help analytical chemists understand and evaluate relative ion suppression risk in liquid chromatography–mass spectrometry methods.

Instead of claiming quantitative suppression percentages or relying on vendor-specific data, the simulator applies chemically correct, rule-based reasoning to show how ionization mode (ESI vs APCI), chromatographic behavior, mobile phase additives, sample matrix complexity, and sample preparation level collectively influence the likelihood of ion suppression.

Users explore how early elution, non-volatile components, phospholipids, complex matrices, and insufficient cleanup increase suppression risk, while improved retention, cleaner extracts, and appropriate ionization strategies reduce it. Outputs are intentionally qualitative (Low, Moderate, High, Very High), reinforcing the reality that ion suppression cannot be predicted numerically without experimental data.

The simulator is ideal for:

LC–MS and LC–MS/MS method development

Teaching ion suppression mechanisms

Training analysts in matrix effects awareness

Supporting troubleshooting and method optimization discussions

Built with a modern, dark scientific interface and designed for ChemITrust-style educational platforms, this tool emphasizes cause-and-effect understanding, helping users make informed decisions before running experiments—without overpromising predictive accuracy.