Laboratory Technician - SGS Laboratory Services (Tarkwa Geochemical Lab) - Tarkwa
(2025-09)
Working in sample preparation and fire assay units, performing mineral analysis and sample processing.
- Receives samples from clients and arrange them accordingly per the idents being provided on the submission and the Job prep sheet.
- Arrange the various sample pans and write on the idents of the sample each
- Arrange them also on the trolleys provided for oven drying for about 8 hours.
- Receives plant samples from clients and do work on them as the clients demand.
- Weigh to obtain the gross weights of the plant samples.
- Filter the samples to separate the solution from the solids since they all go series of test works.
- Dry the samples and re-weigh them to obtain the dry weights of the samples, pans are also measured and that of the buckets too to obtain percentage solids of the individual samples.
- Portion of the samples are being taken and weighed to obtain 300g for screen size analysis.
- Samples that are being pulverized are brought to the central weighing room to be weighed with their job numbers and idents being indicated on the individual samples bagged into smaller envelopes being arranged in order of sequence in the boxes.
- 50g of individual samples are being placed in a weighing cup and are arranged in order in a tray.
- Sometimes 30g is being weighed depending on the nature of the sample.
- Samples are taken to the fluxing chamber to be treated and placed in their respective crucibles.
- Fluxed samples are taken off the bench using the loader and being placed into the fusion furnace for one hour (1 hr).
- Pour fused samples into the various moulds available using the setup made for the pouring to be done.
- Deslag samples in the individual moulds to separate the slag from the lead button.
- Lead buttons are arranged in its respective cupels and are being loaded into the muffle for one hour (1 hr) to obtain the prills required for digestion.
- Prills are being picked and placed into test tubes and HNO3 is being placed on them and are left in the water bath for about 15 – 30 minutes to part followed HCL also being left to be in the water bath for about 30 minutes.
- 10mls of distilled water is also added after the digestion of the acids had taken place.
- Rack containing the individual samples is being shaken to obtain a uniform mixture.
- Samples in the racks being shaken are taken to the AAS to know their individual content of the mineral of interest.
Intern - Minerals Commission Tarkwa-Nsuaem Community - Tarkwa
(2022-11 - 2022-11)
Conducted inspection of registered small scale mine operations and provided detailed reports.
- Collaborates with the senior officers to go around various registered small scale mine operations to conduct inspection.
- Provides detailed reports on the activities which had taken place in the course of the day.
- Make demarcations on the maps indicating the various concessions.
- Uses the map plus software to take coordinates from the site to be placed on the map.
National Service Personnel - UMaT SRID
(2024-10 - 2025-09)
Assisted in teaching environmental courses and conducted sample analysis and data collection.
- Assists my supervisor to teach the various environmental related courses.
- Assists in invigilation during exams and quizzes.
- Visits the sites for data collection and process them
- Collects samples from various working sites and performs analysis on them
- Uses the AAS machine to determine the content of the various minerals available in the various samples presented for analysis.
Intern - SGS Laboratory Services - Damang
(2022-06 - 2022-06)
Performed sample preparation, crushing, milling, and various laboratory analyses.
- Load samples brought to the laboratory to the sample preparation area.
- Place samples in the available trails for oven drying with their identification.
- Crush samples and mill them to a required size (106μm).
- Measure samples and place them in the various bottles and prepare them for leaching.
- Aliquote samples and take them to the wet chem lab for its preparation for analysis using AAS.
- Weighs some amount of soil samples and prepare them for aqua regia analysis.
- Performs analysis on carbon digestion.
