The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Determine sample characteristics and appropriate analytical methods
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Interpret client request and/or perform presumptive tests to identify sample characteristics that may affect analysis Completed |
Evidence:
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Liaise with client or sample provider to review client needs, testing requirements and sample history, if necessary Completed |
Evidence:
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Identify analytical standards, reference materials, test methods and enterprise procedures that may be applicable Completed |
Evidence:
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Select the most appropriate standard test method that is consistent with testing requirements and instrument availability Completed |
Evidence:
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If no standard method exists, adapt or modify a test method to suit the sample characteristics Completed |
Evidence:
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If necessary, seek advice from supervisor about any proposed variations and document all approved changes to test methods Completed |
Evidence:
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Schedule analysis using enterprise procedures Completed |
Evidence:
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Prepare samples, standards and mobile phase
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Log sample into instrument software Completed |
Evidence:
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Obtain a representative analytical portion of the laboratory sample Completed |
Evidence:
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Prepare sample in accordance with selected test method Completed |
Evidence:
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Prepare mobile phase in accordance with selected test method using buffers and other additives to enhance separation and ionisation, concentrate analytes and prevent build up of salts, as necessary Completed |
Evidence:
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Filter and degas mobile phase Completed |
Evidence:
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Prepare validation checks and/or calibration standards for analytical portions Completed |
Evidence:
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Use specialised procedures for ultra trace sample and standard preparation as required Completed |
Evidence:
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Set up instrument and perform trial analysis
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Configure the injector, column, solvent delivery and detector sub-systems according to the selected test method Completed |
Evidence:
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Prime the pump, flush the system and monitor pressures and baseline to ensure the system is fully equilibrated Completed |
Evidence:
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Perform other pre-use, calibration and safety checks using enterprise procedures Completed |
Evidence:
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Set instrumental parameters in accordance with those specified in selected test method Completed |
Evidence:
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Check and optimise each instrument sub-system Completed |
Evidence:
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Conduct performance tests using standards and samples Completed |
Evidence:
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Assess instrument performance in terms of response, resolution and run-time Completed |
Evidence:
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Optimise instrument performance
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Apply an understanding of analyte and column chemistry, temperature control and varying mobile phase composition to determine strategies for enhancing separation and detection of required species Completed |
Evidence:
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Adjust instrumental parameters in a logical and efficient sequence to optimise performance Completed |
Evidence:
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When optimum separation is achieved, check that the detector and system software can correctly identify and quantify the required species Completed |
Evidence:
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Perform analysis
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Measure analyte response for standards, validation checks and samples using optimised instrument settings Completed |
Evidence:
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Conduct sufficient measurements to obtain reliable data Completed |
Evidence:
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Use system software to produce calibration graphs, chromatographs and/or mass spectra, confirm data quality and calculate uncertainties Completed |
Evidence:
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Check that results are consistent with estimations and expectations Completed |
Evidence:
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Analyse trends in data and/or results and report out of specification or atypical results promptly to appropriate personnel Completed |
Evidence:
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Return instrument to standby or shutdown condition in accordance with enterprise procedures Completed |
Evidence:
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Report results with the appropriate accuracy, precision, uncertainty and units Completed |
Evidence:
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Perform routine maintenance and troubleshoot instruments
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Flush and store the column with the recommended solvent to protect the stationary phase during downtime Completed |
Evidence:
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Regularly check that the pump, lines, valves, injector, column and detector sub-systems are clean/undamaged and replace consumable items as necessary Completed |
Evidence:
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Change columns and detectors in accordance with manufacturer's instructions and ensure that the system is free of leaks and properly conditioned before re-use Completed |
Evidence:
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Investigate possible causes for the absence of peaks and presence of ghost peaks, split/distorted peaks, band broadening and apply recommended remedial actions Completed |
Evidence:
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Investigate possible causes for baseline instability and non-reproducible retention times and apply recommended remedial actions Completed |
Evidence:
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Identify the need for repairs or servicing and determine whether local repair/maintenance is technically possible and economic Completed |
Evidence:
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Arrange for repair or servicing from an accredited agent or other appropriate personnel in accordance with enterprise procedures Completed |
Evidence:
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Maintain a safe work environment
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Identify risks, hazards, safety equipment and control measures associated with sample handling/preparation and test method Completed |
Evidence:
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Use personal protective equipment and safety procedures specified for test method and materials to be tested Completed |
Evidence:
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Minimise the generation of wastes and environmental impacts Completed |
Evidence:
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Ensure the safe collection/disposal of mobile phase and other laboratory wastes Completed |
Evidence:
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Clean, care for and store equipment and consumables in accordance with enterprise procedures Completed |
Evidence:
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Maintain laboratory records
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Enter approved data and results into laboratory information management system (LIMS) Completed |
Evidence:
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Maintain logs of instrument calibration checks, use and maintenance in accordance with enterprise procedures Completed |
Evidence:
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Maintain security, integrity and traceability of samples, results and documentation Completed |
Evidence:
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Communicate results to appropriate personnel in accordance with enterprise procedures Completed |
Evidence:
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