Trace-Level Screening of Chemicals Related to Clandestine Desomorphine Production with Ambient Sampling, Portable Mass Spectrometry

Table 1

Limits of detection (LODs) obtained for the target surfaces studied.

Surface	DESI-MS		PSI-MS
	Desomorphine	Codeine	Desomorphine	Codeine
Printed Teflon slide	0.50 ng	0.90 ng	—	—
Steel	90 ng	100 ng	4.0 ng	8.0 ng
Nonstick cookware	100 ng	150 ng	8.0 ng	10 ng
Enamel cookware	200 ng	200 ng	2.0 ng	4.0 ng
PET bottle	100 ng	270 ng	2.5 ng	3.5 ng
Glass	150 ng	350 ng	2.0 ng	3.0 ng