Sibongile Herminah Mokhele
Senior Laboratory Analyst
Vanderbijlpark
Summary
Seasoned Senior Laboratory Analyst with a robust background in analytical chemistry, notably at SASOL. Excelled in using advanced laboratory equipment and techniques, such as ICP-OES and auto-titration, to deliver precise analytical results. Demonstrated expertise in data analysis and customer service, ensuring high-quality standards and client satisfaction. Proven ability to troubleshoot complex issues, enhancing laboratory efficiency and performance.
Overview
11
11
years of professional experience
Work History
Senior Laboratory Analyst
Sasol
03.2017 - Current
- Prepared samples and assisted laboratory personnel in performing qualitative and quantitative analysis using analytical instruments, techniques and methods.
- Analyzed patient specimens by performing routine and special diagnostic medical laboratory tests and followed department protocols to review results.
- Operated and troubleshot equipment, instruments and associated software and routinely performed quality control on instrumentation to comply with established specifications.
- Assisted in ordering laboratory supplies and necessities to maintain appropriate level of inventory.
- Reporting, Investigating and authorizing of analytical results using LIMS
- Handle customer complaints and ensure that turn around time is met
- Titration analysis to determine strength of caustic soda, NaOH and Sodium carbonate samples using auto-titration
- Calibration of instruments using standards
- The determination of a wide range of metals either as dissolved, unfiltered metals in water by ICP-OES
- Gravimetric analyses to determine oil content in Wax sample
- Analyzing using particle size distribution of Wax and Catalyst samples
Laboratory Analyst
Columbus Stainless
07.2014 - 12.2015
- Prepared samples and assisted laboratory personnel in performing qualitative and quantitative analysis using analytical instruments, techniques and methods.
- Conducted routine maintenance on laboratory equipment, ensuring optimal performance and minimizing downtime.
- Utilized advanced analytical techniques such as HPLC, GC-MS, and ICP-MS to provide accurate data for client reports.
- Troubleshot issues with instrumentation or methodology to minimize delays in obtaining accurate results.
- Ensured proper handling of hazardous materials according to established guidelines for safe disposal or storage.
- Prepare effluent water samples for ICP analysis.
- Measured pH and conductivity in water and waste water samples.
- Performed microbiological analysis of waste water.
- Conducted laboratory quality inspections according to ISO17025 system.
- Reported deviation and performed actions to implement and improve methods and procedure.
- Conduct water analysis, Including Chemical Oxygen Demand (COD) and suspended solids.
- Determine chromium content by automated Potentiometric titrations.
Laboratory Analyst
Delta EMD
01.2014 - 06.2014
Education
Bachelor of Science - Chemistry
Vaal University of Technology
Vanderbijlpark, South Africa 04.2001 -
Skills
- Troubleshooting
- Using Laboratory equipments
- Data Interpretation and analysis
- Customer service
- Microsoft Office, LIMS
- Good communications
Additional Information
Project handling
Timeline
Senior Laboratory Analyst
Sasol
03.2017 - Current
Laboratory Analyst
Columbus Stainless
07.2014 - 12.2015
Laboratory Analyst
Delta EMD
01.2014 - 06.2014
Bachelor of Science - Chemistry
Vaal University of Technology
04.2001 -
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