TSMS-ANL-005
System Suitability Testing Study Guide
School of Analytical Chemistry · Analytical Chemistry Foundations · Intermediate
Open full lessonLearning objectives
- Explain the purpose of system suitability.
- Distinguish system suitability from method validation.
- Describe common suitability parameters.
- Explain what to do when suitability fails.
- Understand performance trending and documentation.
Executive summary
A validated method does not guarantee that the current instrument, column, mobile phase, standard, and analyst preparation are functioning properly today.
System suitability testing verifies that the complete analytical system meets predefined criteria immediately before or during sample analysis.
Validation asks whether the method is fundamentally capable.
System suitability asks whether the current run is ready.
System suitability testing verifies that the complete analytical system meets predefined criteria immediately before or during sample analysis.
Validation asks whether the method is fundamentally capable.
System suitability asks whether the current run is ready.
Key takeaways
- System suitability verifies current system readiness.
- It complements but does not replace validation.
- Resolution, precision, symmetry, and efficiency are common parameters.
- Criteria must be predefined.
- Failures require investigation.
- Trending supports preventive control.
Self-review questions
- What question does system suitability answer?
- Why is resolution monitored?
- What can poor area precision indicate?
- Why should criteria be predefined?
- What is the value of trending?
Use the full lesson to verify your answers.