Why are the fluoride results lower than those determined by an outside lab?

Dokument-ID

Dokument-ID TE356

Veröffentlichungsdatum

Veröffentlichungsdatum 01.08.2019
Frage
Why are the fluoride results lower than those determined by an outside lab?
Zusammenfassung
Fluoride results not matching an outside lab
Antwort
There are several possible reasons for this.
  • The outside lab may be using a different method to measure Fluoride.
  • There could be interferences in the sample causing inaccuracy of the colorimetric test.
  • There could be fluoride contamination in the water used for the SPADNS blank. If there is any fluoride contamination in the blank, the color difference between the blank and sample will be less than it should be, and results will be low.

Determine what type of test the outside lab is performing and whether a distillation is being performed on the samples in order to better compare.

Hat dir diese Antwort geholfen?

Wird gesendet...
Vielen Dank für Ihr Feedback.
Beim Senden ist ein Fehler aufgetreten. Versuchen Sie es erneut.