Model 5360/5360A Halogen Specific Detector (XSD) Specification Sheet0 pages

GC DETECTORS
Model 5360/5360A XSD™
Halogen Specic Detector

Description
The Model 5360 and Model 5360A Halogen Specic
Detectors (XSD™) were developed for the selective
detection of halogen-containing compounds eluting from
a gas chromatograph’s (GC) capillary column in the
subpicogram to microgram range. The XSD installs in the
standard detector port of most GC makes and models. It can
be installed either as a stand-alone detector or in tandem
with the Model 4430 Photoionization Detector (PID).
The 5360A XSD heated base assembly provides improved
baseline stability and easy column installation. When
used with the enhanced venting option, venting efciency
is nearly 100%, even in the case of a chlorinated solvent
injection.
Unlike other halogen selective detectors, the XSD contains
no radioactive sources and does not use organic solvents.
These XSDs do not require catalyst tubes, solvents, resin
cartridges, pumps, or transfer lines. Wipe testing and
complicated record keeping are eliminated.

Operating Principle
The reactor is operated in an oxidative mode, pyrolyzing
the efuent from a GC column. This oxidative pyrolysis
efciently converts compounds containing halogens to their
oxidation products and free halogen atoms.

The cathodic surface is activated by neutralization of alkali
ions emitted from the anodic surface. The adsorption and
reaction of free chlorine atoms with this alkali-sensitized
cathodic surface yields an increased thermionic emission
comprised of free electrons and halogen ions.
The total cathodic current is measured by the 5360/5360A
electrometer and converted to a 0–1 V or 0–10 V output
signal, which can be readily coupled to a chromatographic
data handling system.

XSD™ Capabilities
•

High halogen selectivity vs. hydrocarbon simplies analyses
and minimizes or eliminates the need for sample preparation

•

High detector sensitivity permits very low-level selective
analysis of halogen-containing (Cl, Br, F) compounds

•

Unique jet design minimizes peak tailing due to unswept
dead volumes

•

Requires only air to operate

•

Designed to operate on most GC makes and models

•

No routine maintenance required

•

Enhanced venting option diverts solvent before entry to the
reactor

Principal Applications
•

Halogenated compounds

•

Field GC detector

•

VOCs

•

Process control/testing

•

Pesticides

•

Residual solvents

•

PCBs

•

QA/QC testing