Page 3 - Smiths Detection IONSCAN600 Sampling Test using Toothpick Method.RevD

Sampling Visible Narcotic Residue Using the Toothpick Method

NOTE: A ‘trace amount’ is
defined as a very, very small
(almost invisible) amount of
substance.

The Smiths instrument
generally detects at the 1-20
nanogram (ng) level.

For comparison, a single
grain of salt is ~50,000 ng.
That’s 2000x more sample
substance than is really
needed.

The instrument is designed
to cope with amounts up to
5,000 ng. Samples larger
than this can easily overload
the detector.

There should be no visible
residue on the swab after
sampling.

Smiths Detection Inc.: Proprietary Last Updated 3/15/2018 Page 3 of 6