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Pages in this section: D25 D26 (all shown below)
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D25
Scientific Instrument Services, Inc.
™
FAX: 908-806-6631
www.sisweb.com/catalog/08/D25
Micro Cryo-Trap
™
Features
•
Only 1.0" long - uses minimum amount
of cooling gas
•
Reduction of CO
2
or LN
2
use by 97%
as compared to cooling the entire oven.
•
Improve chromatographic resolution of
early eluting peaks
•
Dual programmable cryo-cooling and
heating cycles
•
Trap compounds in the GC oven at the
head of the GC column.
•
Remote input connector for switching
between cryo-cooling and heating
cycle switching via GC, Desorption
system or manually.
•
Rapid heating up to 400°C at > 400°C
per minute.
•
Remote start output signal for starting
GC, MS or recorder.
•
Easy Installation
•
Clamp Mounts onto GC Injection Port
Applications
•
Thermal Desorption Sample Trapping
•
Purge and Trap Systems
•
GC Headspace Sample Analysis
•
Multi-dimensional GC Applications
T
he Micro Cryo-Trap consists of a small heating/cooling
chamber which is 3/4" in diameter and 1" long and mounts
on the bottom of the injection port just inside the GC oven.
In the center of the chamber is a small stainless steel capillary
through which the capillary column freely passes. Capillary columns
up to megabore (0.53mm I.D.) diameters can be used. Around the
stainless steel capillary tube a heating coil is wound to provide for the
rapid heating of the capillary tube. A thermocouple provides accurate
measurement of both the cooling and heating temperatures. Either
Liquid CO
2
or Liquid Nitrogen for cooling is introduced into the Micro
Cryo-Trap™ (Cooling Gas In), and is exhausted through the outlet.
The exhaust can either be vented into the GC Oven or a tube can be
attached to vent the cooling gas external to the GC.
The control of the Micro Cryo-Trap is provided via an indepen-
dent Cryo-Trap Controller provided with the System. Both the Cryo-
Cooling and heating temperatures are set via this digital temperature
controller. The system can be used either manually to switch
between cooling and heating or can be operated automatically via an
input signal from a controlling device.
For the cooling operation the cooling gas is pulsed into the cham-
ber. Liquid CO
2
(Model 971) will cool down to -70° C. Liquid Nitrogen
(Model 981) will cool down to -180°C. The cooling temperature can
be set to any temperature between room temperature and the lower
limits of the cooling gas. The temperature controller will pulse the
cooling gas into the chamber to accurately control the temperature to
the value you set. The thermocouple provides the feedback to both
regulate the temperature as well as display the Micro Cryo-Trap™
temperature on the display of the temperature controller. The elec-
tronics of the Model 971 and Model 981 are different due to the dif-
ferent cooling properties of the liquid CO
2
and Liquid Nitrogen.
Therefore parts are not interchangeable between the two models and
the particular model can only be used with the cooling gas for which
it was designed.
Each Micro Cryo-Trap System consists of the Micro Cryo-Trap™
which goes inside the GC oven, the cryogenic gas valve, the Dual
Temperature Controller and cooling gas tubing.
Micro Cryo-Trap
New Programmable Micro Cryo-Trap™ for the Cryo-focusing of
Volatiles and Semi-Volatiles at the Head of GC Columns.
Micro Cryo-Trap™
only
1.0 inch long
Free Application Notes Available - Call SIS at (908) 788-5550
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Micro Cryo-Trap
™
D26
Scientific Instrument Services, Inc.
™
Phone: 908-788-5550
www.sisweb.com/catalog/08/D26
Micro Cryo-Trap
T
wo models of the Micro Cryo-Trap are now available.
The Model 971 is designed for liquid CO
2
for cryo-
trapping temperatures down to -70°C. The Model 981
is designed for Liquid Nitrogen for cryo-trapping temperatures
down to -180°C. Each model can maintain any cooling
temperature within ± 3°C from its minimum temperature up to
room temperature. In order to release the trapped volatiles from
the Micro Cryo-Traps™, both models can heat the Micro Cryo-
Trap™ at temperatures up to 400°C at a heating ramp rate in
excess of 400°C/minute. Most users prefer to use the CO
2
version of the Micro Cryo-Trap (Model 971) due to the ease of
handling liquid CO
2
and for applications where -70°C is an
acceptable lower temperature limit.
If lower temperatures are required, then the liquid nitrogen
version of the Micro Cryo-Trap (Model 981) must be used. The
liquid nitrogen delivery lines are larger than the CO
2
lines and the
liquid nitrogen lines must be insulated. This makes installation
somewhat more cumbersome. In addition the Liquid Nitrogen
version uses more cooling gas and is slightly more audible.
Depending on the make and model of your GC, a Micro Cryo
Trap can be ordered as described below. First you must decide
which model of Micro Cryo-Trap is required for your application;
the Model 971 for use with CO
2
, or the Model 981 for use with
liquid Nitrogen. Although the Cryo-Trap can be used for both CO
2
and LN
2
, the electronics are not interchangeable for the two
systems.
You must then select which installation kit is required based
on the make and model of your gas chromatograph. Either of the
two Micro Cryo-Trap models will fit the same installation kits
listed.
Model 971 Micro Cryo-Trap for use with Liquid C0
2
The Model 971 Micro Cryo-Trap™ is designed for use with liquid
CO
2
tanks with a DIP tube. The minimum cooling temperature is
-70°C. This model comes with the Micro Cryo-Trap™, the dual
temperature electronics controller, connecting cables and stainless
steel connecting line.
Model 981 Micro Cryo-Trapfor use with Liquid Nitrogen
The Model 981 Micro Cryo-Trap™ is designed for use with liquid
nitrogen tanks (low pressure). The minimum cooling temperature is
-180°C. This model comes with the Micro Cryo-Trap™, the dual
temperature electronics controller, connecting cables and a copper
connecting line.
Cryo-Trap Installation Packages
Depending on the make and model of Gas Chromatograph one of
the installation packages must be ordered for the installation of the
GC Cryo-Trap.The Cryo-Trap installation kits include the relays,
mounting hardware, cables and other parts required to mount the
Cryo-Trap into the particular model of gas chromatograph.
GC Septa
GC Injection Port
GC Injection
Port Liner
Vespel Insulator
Injection Port Clamp
Injection Port Nut
Heater Coil
Thermocouple
Cooling Gas IN
Cooling Chamber
Capillary Column
Cryo-Trap Controller
GC Injection Port
Megabore Guard Column
Cooling Gas
GC Oven
Capillary Union
GC Capillary
Column
GC Cryo-Trap
-60° C
Part No.*
Description
971110 Part #971110--Click to order
Current Price: $2750.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Model 971 Micro Cryo-Trap™
for use with liquid CO
2
, Electronics
Controller, connecting cables, and
stainless steel connecting lines
*Order installation kit below.
Part No.*
Description
981110 Part #981110--Click to order
Current Price: $2750.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Model 981 Micro Cryo-Trap™
for use with liquid LN
2
, Electronics
Controller, connecting cables, HP
relay switch and copper connecting lines
*Order installation kit below.
Part No.*
Description
900110 Part #900110--Click to order
Current Price: $290.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Quantity in Stock=1
Cryo-Trap Install Kit for HP 5890A
900111 Part #900111--Click to order
Current Price: $230.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Cryo-Trap Install Kit for HP5890 Series I & II
900112 Part #900112--Click to order
Current Price: $89.50
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Cryo-Trap Install Kit for HP 6890
900120 Part #900120--Click to order
Current Price: $116.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Cryo-Trap Install Kit for Varian 3400/3600/3700
with 1075 Split/Splitless Injector
with 1040 Megabore Injector
with 1041 Universal Injector
with 1077 Split/Splitless Capillary Injector
900121 Part #900121--Click to order
Current Price: $116.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Install Kit for Varian 3600 w/ 1078 Injector
900122 Part #900122--Click to order
Current Price: $165.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Quantity in Stock=1
Install Kit for Varian 3800
900130 Part #900130--Click to order
Current Price: $118.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Cryo-Trap Install Kit for Shimadzu GC-9A
900140 Part #900140--Click to order
Current Price: $118.00
Unit of Measure: EA
Est. Ship Weight=1 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Install Kit for Thermo Finnigan GCQ
Related information may be found on the following pages of our web site:
PageParts
GC Cryo-Trap Ordering Information900110, 900111, 900112, 900120, 900121, 900122, 900130, 900140, 971110, 981110
GCCryo-Trap Ordering Information900110, 900111, 900112, 900120, 900121, 900130
GC Cryo-Trap Ordering Information900110, 900111, 900112, 900120, 900121, 900122, 900130, 900140
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