---
DETector Engineering
&
Technology. inc.
486N.Wiget Lane,Walnut Creek,CA94598USA
DET
telephone: (925) 937-4203
fax: (925) 937-7581
innovations in chemical detection
e-mail:
THERMIONIC SURFACE IONIZATIONDETECTION FORGC
selectivity for HALOGENATED (CI, Br, I) compounds
CHLORINATED PESTICIDES
4 5
60 ng each
1=Lindane
6
TID-3-N;zO
2=Heptachlor
source:
3.00 A
3=Aldrln
3
2
240 n9 each
4=Dieldrin
5=Endrin
6=4,4' DDT
164
pA
2
TID-3 Ion source in
Nitrous Oxide gas
T1D-1 -N;z
detects all 6 peaks.
4
source:
2.50 A
16400
pA
TID-1 ion source gives
very large signals for
i
Heptachlor and Dieldrin
with Nitrogen gas, and
5
enhanced Endrin signal
with Oxygen gas.
TID-1-e>.z
source:
2.50 A
TID-1-Nitrogen also
I
640
pA
has a large response
2
to Chlordane
I
I
PCB Sample
500 ppm Arochlor 1254
in transformer oil
FlO
TID-7
(green ceramic ion source)
detector gas: Alrzz30, Nltrogen=30mUmin
128 pA full scale
PCBs DET TID/FID Hardware, Thermo NPD Electronics
TID-3 selective detection
TRIHALOMETHANES inWATER
M
B
T
FlO
SpA
'full .cale
4
TIO-3-N:z
SpA
~ull
scale
M
....
3
2
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
PBDE (18ng each) and PAH (92ng each)
FID
512 pA full scale
FlO detects PAH. but only
minimal PBDE signals
----- PAH------>
I<II
~
column bleed
TID-3-Nitrogen
32
pA
f.B.
tetra BDE
TID-3 detects PBDEwith good
selectivity versus
PAH
hepta BDE
Website :
E-mail :
TelNo : 03 9762 29034 . . . inAUSTRALIA
