An analytical chemist/Laboratory Analyst is responsible for preparing geological, environmental, and exploration samples for elemental analysis by converting solid samples into solutions using acid digestion techniques and microwave digestion systems.
Key Responsibilities
- Sample Preparation and Digestion
- Receive and verify samples from the sample preparation section.
- Ensure samples are properly labeled and traceable throughout the digestion process.
- Weigh samples accurately according to analytical procedures.
- Prepare digestion reagents, acids, and standards as specified in laboratory methods.
- Perform acid digestion of samples using microwave digestion systems.
- Operate and monitor microwave digestion equipment safely and efficiently.
- Quality Control and Assurance
- Include quality control samples such as blanks, duplicates, certified reference materials (CRMs)in each digestion batch.
- Monitor digestion efficiency and identify incomplete digestions.
- Record all digestion data and quality control results.
- Adhere to laboratory quality management systems and standard operating procedures (SOPs).
- Participate in internal and external quality assurance programs.
- Equipment Operation and Maintenance
- Operate digestion equipment including: Microwave digestion systems, Muffle furnace, Deionized water equipment, Analytical balances, Fume hoods etc
- Conduct routine equipment inspections and performance checks.
- Report equipment faults and maintenance requirements.
- Maintain equipment usage and maintenance logs.
- Chemical and Reagent Management
- Prepare and standardize digestion reagents and calibration solutions.
- Monitor acid and reagent inventory levels.
- Ensure proper storage and handling of hazardous chemicals.
- Maintain Material Safety Data Sheets (MSDS/SDS) for laboratory chemicals.
- Assist in procurement requests for digestion consumables and reagents.
- Health, Safety, and Environmental Compliance
- Follow laboratory safety procedures when handling concentrated acids and hazardous chemicals.
- Use appropriate Personal Protective Equipment (PPE).
- Ensure proper operation of fume extraction systems.
- Segregate and dispose of chemical waste according to environmental regulations.
- Participate in laboratory safety inspections and risk assessments.
- Documentation and Reporting
- Maintain accurate digestion worksheets and laboratory records.
- Record sample weights, digestion conditions, reagent batches, and QC results.
- Update laboratory information management systems (LIMS) where applicable.
- Prepare daily, weekly, and monthly digestion activity reports.
- Productivity and Continuous Improvement
- Meet daily digestion throughput targets.
- Optimize digestion procedures to improve efficiency and turnaround time.
- Assist in method development and validation and calibration studies.
- Support laboratory accreditation requirements such as ISO/IEC 17025.
- Participate in training and competency development programs.
Key Performance Indicators (KPIs)
- Number of samples digested per day/month.
- Sample turnaround time.
- Digestion success rate.
- Quality control pass rate.
- Equipment uptime and utilization.
- Safety compliance and incident-free operations.
- Accuracy and completeness of laboratory records.
Reporting Line Laboratory Supervisor
