GC/MS and HPLC
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Which factor(s) are important to ensure that instruments provide high quality measurements?
Be careful when collecting samples and extracting analytes.
Instrument calibration, following a regular maintenance schedule and performing unscheduled cleaning as indicated by quality control samples.
Use the instrument to measure analytes from only one type of sample matrix.
None of the above. Instruments today are sophisticated and do not require human intervention.
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