How are samples prepared and how much is needed, for example whole blood or serum? |
Is machine easy to use and what are the staff skill requirements? |
What size is the machine and how portable? |
Is machine reliable, safe, and robust? |
Can machine cope with workload and tests required? |
Machine accuracy (how close are results to “true” or definitive method?) |
Precision (how repeatable is result) |
Minimum detection limit (what is lowest detectable concentration?) |
Response time and warm up time (how quick is result) |
Is there machine result drift during assay? |
Is there a wide analytical range or linearity? |
What are interfering compounds? |
Is machine temperature dependent? |
How easy is machine calibration? |
Is a staff training programme included? |
How are reagents stored? |
How long is the operating lifetime? |
Is maintenance easy and is a contract included or is this extra? |
Easy to decontaminate? |
Cost of machine, reagents, calibration and quality control |
Is assay comparable to those of local laboratory? |
Is a quality control scheme included? |
Will machine soon become obsolete? |