LAB RESULTS SO DIFFERENT FROM FIELD
LAB RESULTS SO DIFFERENT FROM FIELD
(OP)
When using a FID or PID on a SVE influent and effluent can someone tell me why lab results are so different from field results.
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LAB RESULTS SO DIFFERENT FROM FIELD
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LAB RESULTS SO DIFFERENT FROM FIELDLAB RESULTS SO DIFFERENT FROM FIELD(OP)
When using a FID or PID on a SVE influent and effluent can someone tell me why lab results are so different from field results.
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RE: LAB RESULTS SO DIFFERENT FROM FIELD
The real answer is that PIDs and FIDs are not designed to measure "concentration", and can not be compared to lab results even under the most ideal circumstnces. They should be used as screening tools only.
RE: LAB RESULTS SO DIFFERENT FROM FIELD
A better option would be to use an immunoassay kit specific to your contaminant of concern or a portable GC.
RE: LAB RESULTS SO DIFFERENT FROM FIELD
However, PID/FID CAN be quite reliable if you treat the instrument as the sensitive detector that it is. Make sure it is properly calibrated daily (or even more frequently) and you should probably set your response factor to 0.5 - give me more details and perhaps I can help you out.
RE: LAB RESULTS SO DIFFERENT FROM FIELD