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Pages in this section: C2 C3 C4 C5 (all shown below)
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Short Path
™
Thermal Desorption TD-5
C2
Scientific Instrument Services, Inc.
™
Phone: 908-788-5550
www.sisweb.com/catalog/08/C2
A Microprocessor Controlled Short Path Thermal Desorption System for the Analysis
of Volatiles and Semi-volatiles by GC and GC/MS Systems.
Thermal Desorption (Purge &
Trap)
Environmental Air Analysis
Flavor and Fragrance
Analysis
Off odor/Off-Flavor analysis
Forensic Arson Analysis
Residual Gas, Solvents and
Chemicals in:
Pharmaceuticals
Packaging Materials
Building Products
Food Products
Natural Products
Direct Thermal Extraction of:
Plastics
Synthetic Fibers & Materials
Spices
Natural Products
Pharmaceuticals
Finished Products
Applications
Features
Analytical quality
•
High sensitivity thermal desorption and direct thermal
extraction of solid, liquid, and gas samples
•
No memory effects – each sample has its own independent
and “short” flow path from sample to GC, eliminating transfer
lines as a source of contamination
•
Stainless steel sample tubes (glass-lined GLT or silco treated)
are inert to samples and strong for sample handling and
transporting.
•
Rapid cryogenic (CO2 or LN2) cooling and heating of the GC
column head for improved chromatographic resolution
(optional Cryo-Trap
™
accessory).
Functions/Convenience
•
Mounts overtop most GC injection ports—easily removable
and transferable.
•
Automatic injection and desorption of sample into GC
(pneumatic driven injector).
•
NEW
- Windows-based software for control and monitoring
of the system
•
NEW
- Seamless integration into Agilent ChemStation
™
and Thermo Fisher Scientific Xcalibur
™
•
Optional - stand alone operation with other top injecting GC’s
Specifications
•
NEW
- Desorption: temp range: 20° to 400°C, either
isothermal or temperature programmed. Max heat rate:
100°C/min.
•
Cryo-trap: min temp: -70°C (CO2) or -180°C (LN2).
Max temp: 400°C. Max heat rate: 10°C/sec.
Multi-sample version
of our
Thermal Desorption
System is also
available.
See pgs. C6 - C11
Visit sisweb.com
S.I.S. AutoDesorb™
S.I.S. TD-5
T
he new SIS TD-5 is a "short path" thermal desorption
system. It provides unattended thermal extraction (thermal
desorption) and injection of volatile and semi-volatile
organics from solid, liquid and gas samples into a gas chromato-
graph (GC). The system delivers samples into the GC along an
optimal “short path,” thereby eliminating transfer lines and cross-
sample contamination issues found in previous systems.
A sample for analysis is introduced into a desorption tube, which
is then fitted with a needle and attached to the TD-5 Desorption Unit.
The Desorption Unit sits over the GC injection port, where, upon
signal from the PC software, it automatically injects and desorbs the
sample into the GC injection port and column using the temperatures
and times prescribed in the desorption method.
The TD-5 System consists of the Desorption Unit (which contains
the sample analysis hardware), an Electronics Console (which con-
tains a microprocessor and power supply), and a Windows-based
Thermal Desorption software (which provides control and monitoring
of the system). This software can be fully integrated with selected
GC data systems (e.g. Agilent ChemStation), or it can
operate fully independently from the GC data system. Various
accessories are available such as the Cryo-Trap, which cryogenical-
ly cools and rapidly heats the GC column head for improved chro-
matographic resolution.
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C3
Short Path
™
Thermal Desorption TD-5
Scientific Instrument Services, Inc.
™
FAX: 908-806-6631
www.sisweb.com/catalog/08/C3
Theory of Operation
T
he Thermal Desorption Unit sits directly on top of the
injection port of most GC's (Fig.2), where it provides
direct desorption of both volatile and semi-volatile samples
into the GC injection port and column. The system delivers samples
into the GC along an optimal “short path,” thereby eliminating trans-
fer lines and cross-sample contamination issues found in previous
systems.
Samples to be analyzed are collected into stainless steel
desorption tubes (either glass lined GLT or silco-treated)(Fig.1). A
solid sample of interest may be packed directly into the tube and
subjected to direct thermal desorption. Alternately, the tube may be
packed with adsorbent resin such as Tenax
™
TA or activated carbon
for indirectly trapping analytes from liquid or air samples.
To analyze a prepared desorption tube (Fig.4), a syringe nee-
dle is first attached to the desorption tube, which is then attached to
the connector tube on the Desorption Unit (#1). The desorption
blocks heat to initial temperature (#2). Carrier gas is sent through
the desorption tube for an initial purge time (#3). The system then
injects the desorption tube into the GC injection port (#4) where flows
are readjusted as required by the method of analysis, i.e. split/split-
less, etc. The hinged heating blocks close around the desorption
tube (#5) to ballistically heat the sample tube, optionally with a tem-
perature ramp. The combination of the heat applied and the carrier
gas flow through the desorption tube will purge the desired compo-
nents into the GC injection port and onto the front of the GC column.
To obtain sharp chromatographic peaks when desorption typically
lasts 5 to 15 minutes, it can be desirable to focus desorbed compo-
nents at the head of the GC column. This focusing can be improved
by installing a Cryo-Trap, which cryogenically cools the head of the
GC column (with liquid CO
2
or LN
2
) during desorption to trap des-
orbed analytes. After desorption, the Cryo-Trap rapidly heats to
volatilize the trapped analytes and quickly release them through the
GC column for separation (#6).
Purge
Gas Off
Desorb
Blocks Off
Cryo Off
0
Purge
Gas Off
Desorb Blocks
Heating
Desorb Blocks
Heating
Cryo Cooling
Cryo Cooling
Cryo Cooling
Purge
Gas On
Purge
Gas On
Desorb Blocks
Heating
Cryo Cooling
Purge
Gas On
Desorb Blocks
Heating
Cryo Heating
Purge
Gas Off
Desorb
Blocks Off
1
2
Detachable
Needle
Quartz Wool
Quartz Wool
Screw Threads
Solid Sample or
Adsorbent Resin
Figure 1 - Desorption (sample) tube
Figure 2 - Desorption Unit mounted on an Agilent 6890 GC
Figure 3 - Schematic of TD-5 System Connected to GC
Sample Loaded
Temperatures ON
Purge Gas ON
Injecting
Desorbing Sample
GC Analysis
Figure 4 - TD-5 Run Cycle
X
X
3
4
5
6
X
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www.sisweb.com/catalog/08/C4
Short Path
™
Thermal Desorption TD-5
C4
Scientific Instrument Services, Inc.
™
Phone: 908-788-5550
Software
T
he SIS Thermal Desorption Software included
provides visualization and control of all thermal desorp-
tion operations through a user-friendly graphical user
interface. The user may configure system and thermal desorption
methods settings (e.g. times and temperatures) as well as moni-
tor the system status (e.g. temperatures and pressures) during a
run.
The Thermal Desorption Software can be used fully indepen-
dent of the GC data system, or it can be fully integrated with cer-
tain GC data systems (e.g. Agilent ChemStation
™
or Thermo
Xcalibur
™
). When the software is integrated with ChemStation,
thermal desorption parameters get stored directly into the current
ChemStation method so that GC and thermal desorption method
settings are linked. The run is initiated from ChemStation, and
methods may be changed between samples to provide different
desorption parameters for different samples. For example, a sep-
arate high temperature bakeout or blank method can be setup
and run between samples to assure the system is clean for the
next sample. The software operates in Microsoft Windows 95, NT,
and XP operating systems.
View/edit TD method parameters
View sample log
Monitor run status
Load/save methods, run
samples, configure system
and browse help
Figure 5 - SIS Thermal Desorption Software
Features
•
Configure system parameters and limits
•
Configure thermal desorption methods
including desorption and cryo-trap times
and temperatures.
•
Monitor system status including actual
times, temperatures, pressures and status
during a run.
•
Log sample status and errors.
•
View online help system.
•
RS-232 (optional USB bridge) commu-
nication with TD-5 instrument.
•
Optional Agilent ChemStation or Thermo
Xcalibur integration for method load/save and
sample run.
•
The Cryo-Trap may be operated separately for
syringe injections.
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C5
Short Path
™
Thermal Desorption TD-5
Scientific Instrument Services, Inc.
™
FAX: 908-806-6631
www.sisweb.com/catalog/08/C5
Accessory Supplies Kit
Ordering Information for the Short Path Thermal Desorption System
Recommended and Optional Accessories
This kit contains an assortment of the most commonly used
supplies needed to operate The Short Path Thermal Desorption
System. It provides the basic supplies for the operator to begin the
operation of the desorption system and thereafter select the type of
supplies which will best serve the user in his particular application.
Part No.
Quantity
Description
786001
4
Desorption Tube 3mm ID Silco Treated
786093-50
2
GLT Tube, 3.0mm ID with 50mg Tenax TA
786093-100
2
GLT Tube, 3.0mm ID with 100mg Tenax TA
786018
4
Sealed AutoDesorb Needle
786035
4
AutoDesorb Needle 35mm
781004
1
PTFE Washers 10/pk
786017
2
Vespel Seal
Kit Contents
W
hen ordering the Short Path Thermal Desorption System, a wide range of systems and accessories are available depend-
ing on the application requirements of the user. A minimum system should include the Thermal Desorption System (Part
#785000 Part #785000--Click to order
Current Price: $11000.00
Unit of Measure: EA
Est. Ship Weight=70 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
) and an installation kit for your make and model of gas chromatograph. Installation and training is recommended
at the prices listed below. Alternatively, training is available at S.I.S. at no charge. The items marked “recommended” will make operation
and use of the Short Path Thermal Desorption System easier and more convenient. The items marked “optional” should be purchased
only if an application which requires it is contemplated.
Additional Installation Kits for other makes and models of GC’s will also be made available. Call for pricing and availability.
Part No.
Description
784010 Part #784010--Click to order
Current Price: $545.00
Unit of Measure: EA
Est. Ship Weight=3 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Accessory Supplies Kit
Part No.
Description
785000 Part #785000--Click to order
Current Price: $11000.00
Unit of Measure: EA
Est. Ship Weight=70 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Complete Short Path Thermal Desorption System, Model TD-5, Includes Thermal Desorber,
Electronics Console, Connecting Cable, one desorption tube, one needle and seals.
782100 Part #782100--Click to order
Current Price: $3675.00
Unit of Measure: EA
Standard lead time for non-stocked items is approximately two weeks.
*
On Site training and installation of TD-5 System, Includes 1 1/2 days on site, travel
and all other expenses. (Continental US, except NJ & Eastern PA)
782110 Part #782110--Click to order
Current Price: $1575.00
Unit of Measure: EA
Standard lead time for non-stocked items is approximately two weeks.
On Site training and installation of TD-5 System, Includes 1 1/2 days on site, travel
and all other expenses for NJ & Eastern PA.
Installation Kits - Select one (1) of the following - (one of these kits is required in order to install and operate the TD-5).
785200 Part #785200--Click to order
Current Price: $386.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Varian 3400 GC Installation Kit, includes GC Carrier Gas Valve, remote start cable, desorption tube pliers,
PTFE tubing, one desorption tube, needle and seals
785210 Part #785210--Click to order
Current Price: $525.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Agilent Technologies 5890 Series I GC Installation Kit, includes GC Carrier gas valve, remote start cable,
desorption tube pliers, one desorption tube, needle, seals, septum adapter, mounting plate, PTFE tubing
785220 Part #785220--Click to order
Current Price: $525.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Agilent Technologies 5890 Series II, No EPC Installation Kit, includes GC Carrier gas valve, remote start cable,
desorption tube pliers, one desorption tube, needle, seals, septum adapter, mounting plate, PTFE tubing
785230 Part #785230--Click to order
Current Price: $820.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Agilent Technologies 5890 Series II, with EPC Installation Kit, includes GC Carrier gas valve, remote start cable,
desorption tube pliers, one desorption tube, needle, seals, septum adapter, mounting plate, PTFE tubing
785231 Part #785231--Click to order
Current Price: $825.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Agilent Technologies 6890 Installation Kit includes GC Carrier gas valve, remote start cable, desorption
tube pliers, one desorption tube, needle seals, septum adapter, PTFE tubing
785240 Part #785240--Click to order
Current Price: $425.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Perkin Elmer 9000GC Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, mounting plate and PTFE tubing
785241 Part #785241--Click to order
Current Price: $825.00
Unit of Measure: EA
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Perkin Elmer Autosys XL Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, mounting plate and PTFE tubing
785250 Part #785250--Click to order
Current Price: $825.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Shimadzu 17A GC Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, PTFE tubing
785260 Part #785260--Click to order
Current Price: $895.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Finnigan GC Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, PTFE tubing
785261 Part #785261--Click to order
Current Price: $825.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
TG T2000 GC Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, PTFE tubing
785265 Part #785265--Click to order
Current Price: $925.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
CE 8000 GC Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, PTFE tubing
785270 Part #785270--Click to order
Current Price: $825.00
Unit of Measure: EA
Est. Ship Weight=10 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Varian GC Installation Kit, includes GC Carrier gas valve, remote start cable, desorption tube
pliers, one desorption tube, needle, seals, septum adapter, PTFE tubing
* Subject to change based on location.
Need
Part No.
Description
Page #
Recommended
781051A Part #781051A--Click to order
Current Price: $4495.00
Unit of Measure: EA
Est. Ship Weight=30 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Desorption Tube Conditioning Oven
C18
Recommended
784010 Part #784010--Click to order
Current Price: $545.00
Unit of Measure: EA
Est. Ship Weight=3 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Accessory Supplies Kit
C5
Recommended
975000 Part #975000--Click to order
Current Price: $1725.00
Unit of Measure: EA
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Cryo-Trap
™
Accessory*
C25
Optional
782050 Part #782050--Click to order
Current Price: $4125.00
Unit of Measure: EA
Est. Ship Weight=30 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
T.D. Sample Collection Oven
C22
Optional
914000 Part #914000--Click to order
Current Price: $995.00
Unit of Measure: EA
Est. Ship Weight=3 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Model LFS-113 Air Sampling Pump
C35
Optional
783010 Part #783010--Click to order
Current Price: $1195.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Purge & Trap System
C26
Related information may be found on the following pages of our web site:
PageParts
Thermal Desorption Conditioning Oven - 6 Tube781051A
SIS Purge and Trap System783010
Installation of the Short Path Thermal Des. Sys on the Varian GC782100
Site Prep and Instalation of the Short Path Thermal Desorption S782100
Personal Air Sampling Pump914000
GCCryo-Trap Ordering Information972250
Thermal Desorption Sample Collection System782050
Short Path Thermal Desorption System Ordering Information782100, 782110, 784010, 785000, 785200, 785210, 785220, 785230, 785231, 785240, 785250, 785260, 785261, 785265, 785270
Installation of the Short path Themal Des. System on the HP GC782100
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