DETector Engineering &Technology, inc.
486 N. Wiget Lane, Walnut Creek, CA 94598 USA
DEl
telephone: (925) 937-4203
fax: (925) 937-7581
e-mail:
Innovations In chemical detection
-CONSIDERTHEVALUEADDEDADVANTAGES OF
THERMIONICSURFACE IONIZATION DETECTIONTECHNOLOGY
unprecedentedcapability for interchange betweenmultiplemodes
of
selective
chemical detection using low cost, uncomplicateddetector eqUipment
1. Simple, inexpensive detector components feature an electrically heated,
cylindrically shaped ceramic ion source element positioned on the axis of an
ion collector cylinder for stream-lined gas flow and optimum ion collectton,
2. Detector hardware structures designed for easy custom mounting onto an
existing FID or NPD type detector base to provide access to 2 or 3 detector
gases - variable orientations of signal probe arm to avoid adjacent structures
- easyself-aligning top access installation of ion source elements.
3. Multiple modes of selective detection achieved with the same basic
equipment byeasy changes of the ion source element and detector gases 9 different choices for the ionizing element are currently available.
4. Selectivitymodes include compounds containing NandPatoms (NPD), 0,
CI, 8r, I, Pb, Sn, or Si atoms, as well as selectivity for N0
2 ,
CH
2 ,
or Pyrrole vs.
Pyridine functional groups, among others.
5. Unlike other GC detectors, Thermionic Ionization Detectors (TID) do not
require ultra high purity gases - ambient Air is acceptable for somemodes.
6. Unlike glass NPD ion sources, rigid ceramic coated surfaces withstand NPD
operating temperatures of
600
to
800°C
without softening ormelting, and have
unlimited shelf lifewhen not in use.
7. Stainless steel/ceramic detector hardware structures capable of operation at
wall temperatures in excess of
400°C.
8.
Unique sensitivities and selectivities often reveal trace level sample
impurities not seen byother types ofGCdetectors.
9. Onlya few loose parts for simple, inexpensive service and maintenance.
(versatile detector capability helps sell the entireGC instrument)
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
