DETector Engineering & Technology, inc.
486 N.Wiget Lane, Walnut Creek, CA 94598 USA
telephone: (925) 937-4203
fax: (925) 937-7581
DET
e-mail:
innovations in chemical detection
THERMIONIC SURFACE IONIZATION DETECTION FORGC
selectivity for HALOGENATED (CI, Sr, I) compounds
TID-3
selective detection
TRIHALOMETHANES
in
WATER
IVI
T
FlO
SpA.
"'ull scale
4
TIO-3-N:z
SpA.
1"....
11
scale
M
....
2
3
Samples in Water solution:
M=2500 ng Methanol,
B
&
T=47ng each Benzene
&
Toluene,
0.64ng each Trihalomethanes,
1=CHCI
3 ,
2=CHCI
2Br,
3=CHCIBr2' 4=CHBr
3
PSDE (18ng each) and
PAH
(92ng each)
FlO
512 pA full scale
FID detects PAH, but only
minimal PBDE signals
1<. ------- PAH------>
u
TIO-3-Nitrogen
32
pA
f.5.
tetra BDE
TID-3 detects PBDE with good
selectivity versus PAH
hepta BDE
PCB Sample
500 ppm Arochlor 1254
in transformer oil
FlO
TIO-7 (green ceramic ion source)
detector gas: AIr=30, Nltrogen=30mLlmin
128 pA full scale
PCBs DET TID/FlO Hardware, Thermo NPD Electronics
