Gas chromatography (GC) Practice Exam
Gas chromatography (GC) Practice Exam
Gas Chromatography (GC) Exam
The Gas Chromatography (GC) Practice Exam is designed to test your understanding of how GC is used to separate and analyse chemical compounds. It checks your knowledge of GC instrumentation, sample preparation, detector types, and troubleshooting methods. This exam is helpful for students, lab technicians, and professionals working in chemistry, pharmaceuticals, food testing, or environmental analysis.
Who should take the Exam?
This exam is suitable for:
- Students studying chemistry, biochemistry, or pharmaceutical sciences
- Lab technicians and research assistants
- Professionals in quality control and chemical testing
- Analysts in food, environmental, or forensic labs
- Educators and trainers in laboratory sciences
- Individuals preparing for laboratory certification exams
Skills Required
- Basic understanding of chemistry and lab safety
- Familiarity with lab equipment and measurements
- Interest in analytical testing and chemical identification
- Careful attention to detail and recordkeeping
- Willingness to follow scientific procedures and handle samples
Knowledge Gained
- Understanding of the principles and applications of GC
- Knowledge of GC instrument parts and functions
- Ability to prepare samples and run GC analysis
- Skills in identifying errors and solving common GC problems
- Experience with interpreting chromatograms and retention times
- Confidence for lab roles and certification exam preparation
Course Outline
The Gas Chromatography (GC) Practice Exam covers the following topics:
Domain 1 – Introduction to Gas Chromatography
- What is GC and how it works
- Common uses of GC in different industries
- Advantages and limitations of GC
Domain 2 – Components of a GC System
- Carrier gases and flow control
- Injection system and sample introduction
- GC columns: types, coatings, and selection
Domain 3 – Detectors and Data Output
- Flame Ionisation Detector (FID)
- Thermal Conductivity Detector (TCD)
- Choosing the right detector for your sample
Domain 4 – Sample Preparation and Handling
- Proper techniques for preparing liquid and gas samples
- Avoiding contamination and ensuring consistency
- Calibration standards and internal controls
Domain 5 – Operating the GC Instrument
- Setting temperature programs and run conditions
- Software basics and method setup
- Preventive maintenance and best practices
Domain 6 – Chromatogram Analysis
- Understanding peaks, retention time, and peak area
- Identifying compounds using reference standards
- Recognising errors in chromatographic data
Domain 7 – Troubleshooting and Error Management
- Common GC problems and solutions
- Column issues, leaks, and baseline noise
- Data loss and detector performance issues
Domain 8 – Applications and Safety in GC Labs
- GC in food safety, pharmaceuticals, and environmental testing
- Lab safety rules and chemical handling
- Documenting results and following SOPs
