AutoDesorb
™
C6
Scientific Instrument Services, Inc.
™
Phone: 908-788-5550
www.sisweb.com/catalog/08/C6
The new AutoDesorb System is the automated version of the
patented SIS “Short Path Thermal Desorption System”. It is
designed for the automatic and unattended pickup, injection and
thermal extraction (thermal desorption) of volatile and semi-
volatile organics from solid, liquid and gas samples for analysis by
GC and GC/MS.
The AutoDesorb System consists of the AutoDesorb Tower
(which contains the sample analysis hardware), an Electronics
Console (which contains a microprocessor and power supplies)
and a PC Windows Software Package.
The system is operated and controlled by a PC Windows
based software package which operates within the Agilent
Technologies ChemStation software on the Agilent 6890 GC or
Agilent 5973/5975 GC/MS. It also works with the Agilent 5890
series GC (also Agilent 5971, 5972 & 5973 MSD) operating with
the latest version of ChemStation under Windows 95, NT or XP.
This provides a seamless integration of the Agilent GC or MSD
with the SIS AutoDesorb System. The AutoDesorb is also fully
integrated to operate with the Thermo TRACE GC operating under
the Xcalibur
™
Software
The AutoDesorb Tower sits over the GC injection port, where
it is utilized for the direct desorption of both volatile and semi-
volatile samples into the GC injection port and column. Due to its
“short path” of sample flow, this system overcomes the limitations
of other desorption systems by eliminating transfer lines (which
are easily contaminated by samples) and by providing the
optimum delivery (and therefore maximum sensitivity) of samples
to the GC injector via the shortest path possible, i.e. direct
injection into the GC.
The desorption tube with sample for analysis is fitted with a
desorption tube needle and attached to a connecting tube. Each
connecting tube is sealed at the top with a spring loaded ball seal
to prevent sample contamination. A Carousel permits 12 samples
to be loaded for the unattended analysis of samples. When
signaled by the PC from the GC software, the AutoDesorb system
automatically locates and loads the sample, and then using the
prescribed desorption method, injects and desorbs the sample
into the GC. Samples can be run in any sequence using any pre-
viously saved method as specified by the Agilent ChemStation or
Xcalibur GC software.
AutoDesorb - Automated Short Path Thermal Desorption
AutoDesorb Tower and Electronics Console
NEW - AutoDesorb - Automated Short Path Thermal Desorption
T
he PC Controlled Automated Short Path Thermal Desorption
System is designed for the continuous and unattended
thermal extraction of volatile and semi-volatile organics from
solid, liquid and gas samples for analysis by GC and GC/MS.
Features
•
Automated Thermal Desorption Sample Introduction System
•
Carousel holds 12 samples for unattended operation
•
Uses the SIS
™
Short Path Thermal Desorption technology
•
Designed to operate on the Agilent 6890 GC or Agilent
5973/5975 GC/MS also on the Agilent 5890 GC
(5971/5972/5973) and on the Thermo TRACE
™
GC with the
latest software
•
PC Controlled Operation - User-friendly Graphical Interface
•
Fully integrated with the Agilent ChemStation
™
Software
•
Fully integrated with the Thermo TRACE GC operating under
Xcalibur
™
software
•
No “memory effect” - individual flow path for each sample
•
Mounts overtop the GC injection port
•
Not permanently installed to the GC - easily removable
•
Permits the analysis of volatile and semi-volatile organics
•
Uses P&T Thermal Desorption & Direct Thermal Extraction
Techniques
•
Desorb samples at temperatures from room temperature up
to 450°C either isothermal or with multi-step ramp rates up
to 100°C/minute
•
Glass Lined stainless steel desorption sample tubes are inert
and strong for sample handling
•
GC Cryo-Trap Accessory for cryo trapping volatiles during
desorption
•
Versatile Technique - hundreds of applications - see page C42
C7
AutoDesorb
™
Scientific Instrument Services, Inc.
™
FAX: 908-806-6631
www.sisweb.com/catalog/08/C7
The AutoDesorb System
T
he AutoDesorb System uses the SIS patented “Short
Path™ Thermal Desorption” technology. This “short
path” provides for the highest sensitivity of analysis. The
Short Path Thermal Desorption technique enables the analysis of a
wide diversity of samples via several thermal desorption sampling
techniques. Both the Purge & Trap technique and Direct Thermal
Extraction technique can be used for the analysis of volatile as well
as semi-volatile organics.
The Short Path Thermal Desorption Technology provides several
unique advantages over other desorption systems:
First:
It enables the sample, which is trapped on an adsorbent
media contained in a glass lined stainless steel tube (GLT desorp-
tion tube), to be subjected to rapid (ballistic) heating. The
AutoDesorb System can desorb samples at temperatures up to
450° C and at ramp rates up to 100° C. Desorption times and other
timers can be set from 1 second to 99 minutes. Multi-step desorp-
tion heater ramping with hold times can also be programmed
Second:
The desorbed component can be easily and efficiently
transferred into the injection port of the gas chromatograph from a
glass lined stainless steel sample tube and its associated injection
needle. This provides for a short transfer path for the sample in an
inert environment to minimize the degradation of labile sample
components which often decompose upon contact with the hot cat-
alytic metal wall surfaces of the transfer path of other systems.
Third:
Each sample has its own individual adsorbent trap tube
and needle to eliminate the possibility of cross-contamination from
sample to sample, thus preventing any "memory effect" due to
overloading of the sample in the GLT desorption tube or due to
residues from previous samples.
Fourth:
The new automated system permits the unattended
analysis of multiple samples, thereby increasing the productivity of
the laboratory
Fifth:
The “short path” thermal desorption technology provides
the most versatile techniques for the analysis of a wide range of
volatile and semi-volatile organics from gas, liquid and solid matrix
samples.
Complete AutoDesorb System and it components mounted on an Agilent GC/MS
AutoDesorb System mounted on the Agilent 6890 GC and 5973 MSD
AutoDesorb Tower
12 Tube
Carousel
PC Controls the
AutoDesorb™
AutoDesorb™
Electronics
Console
Capillary Column
Cryo-
Trap
™
GC/MS
Interface
SIS AutoDesorb
™
System
Automated Short Path Thermal Desorption
AutoDesorb
™
C8
Scientific Instrument Services, Inc.
™
Phone: 908-788-5550
www.sisweb.com/catalog/08/C8
Ready
Load Sample
Sample Loaded
Heat Blocks
Cool Cryo-Trap
Purge Gas ON
Injecting
Injection Complete
Desorbing Sample
Desorption Done
Sample Analysis
Unload Sample
T
he AutoDesorb System sits on top of the GC injec-
tion port of a Agilent Technologies 6890 or 5890
GC, where it is utilized for the direct thermal des-
orption of both volatile and semi-volatile samples into the GC
injection port and subsequently onto the GC column. It is
NOT permanently mounted to the GC. It is held in place by
gravity and can be lifted up and removed in seconds to
restore the GC to its normal operation. The only modification
to the GC is the addition of a carrier gas shut-off valve which
does not effect the normal operation of the GC. The GC can
be returned to normal GC operation in seconds.
The SIS
™
AutoDesorb system is controlled by a PC
Windows software program that is integrated with the Agilent
ChemStation
™
GC or GC/MS program to control the auto-
matic injection, timed desorption, multi-step temperature
ramp of heater blocks, control of GC Cryo-Trap accessory,
and remote starting of the GC and Mass Spectrometer (see
page C10). The Agilent ChemStation program is used for
sample information input and it controls the analysis of multi-
ple samples using the sequential running mode or single
samples using the normal run mode.
The standard desorption tubes are Glass Lined Stainless
Steel (GLT) Desorption Tubes which have an I.D of 3.0 mm,
are 4.0" long by 1/4" diameter and are threaded on both ends.
The inside of the desorption tube is lined with glass to provide
an inert environment for sample. In addition 4.0 mm I.D. tubes
are available in stainless steel and Silco coated stainless
steel. Samples to be analyzed are collected on the desorption
tubes containing an adsorbent resin such as Tenax
™
TA or
activated carbon. Alternatively, samples of small size (1 to
500 mg) can be packed directly into the desorption tube. The
ends of the tubes can be fitted with stainless steel caps with
seals to maintain sample integrity during sample storage. The
thermal desorption tubes can be reused hundreds of times
which brings the cost of sample containers down to pennies
per sample.
When ready for analysis, the thermal desorption tube is
attached to a connecting tube and the desorption needle is
attached to the other end of the desorption tube. This con-
necting tube is the adapter that enables the desorption tube
to be attached to the AutoDesorb carousel for thermal des-
orption analysis. The top of the connecting tube contains a
spring loaded sealing ball to seal the desorption tube and
maintain sample integrity until the actual thermal desorption
process begins.
The thermal desorption tube is then loaded into the
AutoDesorb system carousel. Up to 12 desorption tubes can
be loaded into the carousel (1). Tubes can be continuously
loaded and unloaded during the running of the sample
sequence. During the thermal desorption process, each des-
orption tube is checked for leaks. If a problem occurs with the
sample such as a pressure leak or system parameter prob-
lem, the sample is unloaded and and a report of the error is
indicated in the sample log table. The sample integrity is
maintained, which enables the error to be corrected and the
sample re-analyzed.
After the sample tube and connecting tube have been
placed onto the carousel, the Agilent ChemStation software
is set up with the GC or GC/MS method and the desorption
method is setup on the AutoDesorb windows. When the sam-
ple run is initialized on the ChemStation Window, the desorp-
tion tube is automatically loaded in the pickup mechanism (2
& 3). The desorption heater blocks are preheated to their ini-
tial temperature (4) and the cryo-trap cooled to its preset tem-
perature (5). The carrier gas through the desorption tube is
turned on and the flow can be manually adjusted via the flow
controller to between 1.0 ml/min and 120 ml/min for an initial
purge time (6).
AutoDesorb Sequential Operations
Theory of Operation of the AutoDesorb System
Desorption
T
u
be
Needle
Sealing
Ball
Connecting
T
u
be
Desorption
T
u
be
C9
AutoDesorb
™
Scientific Instrument Services, Inc.
™
FAX: 908-806-6631
www.sisweb.com/catalog/08/C9
T
he desorption tube is then injected into the GC injection
port. The desorption tube will pass through the opening in
the middle plate of the Desorption Unit base to position
the desorption tube in proper alignment with the GC injection port
and the normally open desorption block assembly (7).
When injection is complete, a programmable time delay permits
the injection port pressure to equilibrate and the system is checked
for pressure leaks (8). If leaks are detected, the sample is
unloaded, the error reported and the next sample in the sequence
is analyzed.
If there are no leaks detected, the desorption blocks close
around the desorption tube and the desorption tube will ballistically
heat up to the set temperature or the temperature program ramp for
the heater blocks will begin (9). The combination of the heat applied
and the carrier gas flow through the Desorption Tube will purge the
desired components into the GC injection port and onto the front of
the GC column.
Normally desorption temperatures between 70°C and 250°C
are suitable for most applications. The maximum desorption tem-
perature permissible with the system is 450°C.
The heater blocks can be temperature programmed at ramp
rates up to 100 degrees/min. Multi-step and hold time desorption
heater block programs can be set up via the AutoDesorb software.
Normal desorption times vary from 3 minutes to 15 minutes, how-
ever longer desorption times up to 100 minutes are permitted. This
allows the trapped samples to be heated by the Desorption Tube
Heater Blocks, the analytes thermally desorbed from the adsorbent
resin and injected directly into the injection port of the Gas
Chromatograph via the shortest path possible, i.e direct injection
into the GC much like a syringe.
Since the column is normally maintained at subambient tem-
peratures, the desorbed compounds of interest are trapped on the
front of the GC column in a narrow band utilizing GC oven cooling
or the optional GC Cryo-Trap
™
Accessory. Despite the long desorp-
tion times, the peaks eluted from the column are extremely sharp
and well resolved.
When the sample has been fully desorbed into the GC column,
the desorption blocks are opened (10), the sample is uninjected
from the GC injection port (11), the Cryo-Trap is heated to release
the analytes from the Cryo-Trap and the GC
is started by the
AutoDesorb system. The GC temperature programming is com-
menced to elute and separate the analytes into the desired compo-
nents. The purge gas remains on for 5.0 minutes to cool the des-
orption tube and then the sample is unloaded back into the
AutoDesorb carousel (12).
When the GC analysis is complete, the next sample of the
ChemStation
™
sequence is loaded, the GC and AutoDesorb system
parameters are reset and this next sample is analyzed.
Theory of Operation of the AutoDesorb System (cont.)
GLT Thermal desorption tube with threaded ends.
Cross section of thermal desorption tube
Loading of Desorption Tubes for sample analysis
Loading of the Thermal Desorption tubes into the AutoDesorb
Carousel
GLT Desorption Tube
Glass Lining
Silco Coated
Stainless Steel
Outer Shell
Silco Coated SS Desorption Tube
AutoDesorb
™
C10
Scientific Instrument Services, Inc.
™
Phone: 908-788-5550
www.sisweb.com/catalog/08/C10
T
he AutoDesorb software is fully integrated with the Agilent
ChemStation
™
software. The entire GC or GC/MS
process as well as the desorption process is started from
the ChemStation windows. The Agilent ChemStation windows are
used for the GC and MS operation as well as sample information
and the AutoDesorb windows are used for thermal desorption
method setup and for monitoring sample analysis. Thermal
Desorption Methods and Operation Methods are developed in the
AutoDesorb windows and saved into the Agilent ChemStation
Method. Methods can be changed between subsequent samples to
provide different desorption parameters for different samples or the
same method can be used for all samples.
The AutoDesorb™ software is designed to be graphical and
easy to use. Sample information need only be entered once. All
data such as sample name and vial number are entered into the
Agilent ChemStation sample run window or the sequence run
window.
The AutoDesorb software system provides for the visualization
and control of all the thermal desorption operations including
sample purging and injecting times, desorption temperatures and
times, GC start times and Cryo-Trap
™
heating and cooling parame-
ters. A user-friendly Graphical Interface displays the pictorial as
well as digital status of the thermal desorption system operation
and GC Cryo-Trap operation. Changes made to the thermal
desorption methods can be saved to the Agilent ChemStation
Method. All the AutoDesorb setup and operational parameters are
displayed on 4 graphics Windows screens. Other screens enable
system setup and setting of system limits.
The first of these windows is the AutoDesorb™ Status Window
(Figure 1) which displays graphically and digitally the current status
of the AutoDesorb™ system. The graphic display visually
demonstrates the mechanical operation of the AutoDesorb™
system as it occurs. The digital display also lists the current thermal
desorption system conditions including sample name and vial
number, desorption and cryo-trap temperatures, GC inlet pressure
and the GC valve status.
The second screen is the Temperature Settings Screen (Figure
2). Method setup is done here as well as monitoring the current
status of the thermal desorption block heaters and cryo-trap
temperatures. Up to 3 temperature ramps and hold times for the
desorption block heaters are permitted in the method. Both the
heating and cooling temperatures for the Cryo-Trap are also
entered here. The user entered method can then be saved to the
Agilent ChemStation method file and used for the analysis of sub-
sequent samples. The graphics display visually shows the temper-
ature profiles for the thermal desorption blocks and the cryo-trap on
a time scale during the analysis in real time.
The third screen is the Time Settings Screen (Figure 3).
Method setup is done here as well monitoring the current status of
Purge Gas Time, Injection Time, Desorption Time, Cryo-Trap cool
and heat times and the GC Start Run Time. On the bottom section
of this window are entered the times for the various thermal
desorption and Cryo-Trap processes. The GC start time can be at
set at anytime from the time of injection until after the desorption
process is complete. The graphic display shows the relative times
of each of these events. During the actual desorption process, a
time bar shows the actual time position of the thermal desorption
process
Additional windows include the sample log window for
displaying the sample analysis history and System Limits screen for
entering the maximum conditions of the AutoDesorb™ system.
Figure 3 - AutoDesorb™ Time Settings Window
AutoDesorb PC Software Control
Figure 1 - AutoDesorb Status Window
Figure 2 - AutoDesorb Temperature Settings Window
C11
AutoDesorb
™
Scientific Instrument Services, Inc.
™
FAX: 908-806-6631
www.sisweb.com/catalog/08/C11
Ordering Information for the AutoDesorb
™
Short Path
™
Thermal Desorption System
W
hen ordering the AutoDesorb system, a number of accessories are available depending on the application requirements and
the GC the system is to be installed on. Installation by Scientific Instrument Services
™
is required as listed below and the
cost is dependent on your location. The items marked “recommended” will make the operation and use of the AutoDesorb
easier and will add to the versatility of the AutoDesorb System. For instance the system is designed to operate with the optional Cryo-
Trap accessory. The Cryo-Trap
™
will enable the analysis of a wider range of analytes and make the system easier to use and increase
its versatility. The items marked “optional” should be purchased only if an application which requires it is contemplated.
Accessories for the AutoDesorb
™
System
The Demo Laboratory at Scientific Instrument Services is available for the demonstration of the AutoDesorb™
or TD5 Thermal Desorption Systems as well as for the running of customer demo samples at no charge. Call
SIS for more information in order to visit our labs or to have our technical staff evaluate the application of
Thermal Desorption for the analysis of your samples.
Major Consumable Parts and Replacement Parts for the AutoDesorb
™
System
Part No.
Description
786000
Part #786000--Click to order
Current Price: $29500.00
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
AutoDesorb System, Model 2000, including AutoDesorb Tower, Electronics and Software
786030
Part #786030--Click to order
Current Price: $895.00
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Accessory Kit, 12 Desorption tubes, 12 needles and 12 seals
786100
Part #786100--Click to order
Current Price: $5000.00
Unit of Measure:
EA
Standard lead time for non-stocked items is approximately two weeks.
*
AutoDesorb Installation, Continental US except New Jersey and Eastern Pennsylvania
includes 2.5 days of installation and training, additional days at additional cost
786110
Part #786110--Click to order
Current Price: $3900.00
Unit of Measure:
EA
Standard lead time for non-stocked items is approximately two weeks.
AutoDesorb Installation, New Jersey and Eastern Pennsylvania (within daily commute)
includes 2.5 days of installation and training, additional days at additional cost
Installation Kits - Select one (1) of the following depending on the GC onto which the AutoDesorb is to be installed
786200
Part #786200--Click to order
Current Price: $850.00
Unit of Measure:
EA
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
AutoDesorb Installation Kit for the Agilent 6890 GC (Agilent 5973/5975 MSD with GC), includes valves
and other components specific to the Agilent 6890 GC operating under Windows NT.
786210
Part #786210--Click to order
Current Price: $1200.00
Unit of Measure:
EA
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
AutoDesorb Installation Kit for the Agilent 5890 Series II GC (Agilent 5972 and 5971 MSD with GC), includes
components specific to the Agilent 5890 GC. Note: System must be operating under the
Agilent GC ChemStation & MS ChemStation (Windows 95, Windows NT, or Windows XP).
* Subject to change based on location.
The AutoDesorb System is not currently designed to operate on any other GC Systems other than the Agilent 6890 and 5890 and the Thermo
Fisher TRACE
™
GC operating under Xcalibur
™
Software.
Need
Part No.
Description
Page No.
Recommended
976000
Part #976000--Click to order
Current Price: $1725.00
Unit of Measure:
EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
Cryo-Trap for the AutoDesorb System, 2” long,
C25
Select one of the Valve Kits below depending on your cooling needs
Recommended
976020
Part #976020--Click to order
Current Price: $425.00
Unit of Measure:
EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
LN2 Valve Kit for the Cryo-Trap, includes valve and tubing
C25
Recommended
976010
Part #976010--Click to order
Current Price: $425.00
Unit of Measure:
EA
Est. Ship Weight=5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
CO2 Valve Kit for the Cryo-Trap, includes valve, adapter and tubing
C25
Recommended
781056
Part #781056--Click to order
Current Price: $5995.00
Unit of Measure:
EA
Est. Ship Weight=40 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
24 Tube Conditioning Oven, conditions desorption tubes,
C19
needles and connecting tubes
Optional
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.
6 Tube Conditioning Oven
C18
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 System
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.
Portable Air Sampling Pump, Model LFS-113
C36
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 and Trap System
C26
Part No.
Description
Page No.
786005
Part #786005--Click to order
Current Price: $67.00
(100 or more: 40% off; 1000 or more: 60% off)
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Quantity in Stock=53
Glass Lined Stainless Steel Thermal Desorption Tube, empty, serialized, 3.0 mm I.D.
C12
Other types and sizes of desorption tubes are also available
786035
Part #786035--Click to order
Current Price: $33.00
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Quantity in Stock=-5
AutoDesorb Needle, 35 mm plain stainless steel
C15
786018
Part #786018--Click to order
Current Price: $9.90
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Quantity in Stock=72
Vespel Seal for AutoDesorb™ tubes
C15
786009
Part #786009--Click to order
Current Price: $139.00
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
AutoDesorb Connecting Tube
C15
V107
Part #V107--Click to order
Current Price: $0.59
(100 or more: 40% off; 1000 or more: 60% off)
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Quantity in Stock=42
Viton™ O ring for Connecting Tube
C15
781006
Part #781006--Click to order
Current Price: $7.35
(100 or more: 10% off)
Unit of Measure:
EA
Est. Ship Weight=0.25 lbs
Quantity in Stock=481
Cap for Thermal Desorption Tube, solid
C12
781004
Part #781004--Click to order
Current Price: $9.24
Unit of Measure:
PK
Est. Ship Weight=0.25 lbs
Quantity in Stock=82
PTFE seal for solid caps, pkg of 10
C12
New Pumps Added to the List of LOW COST S.I.S. Rotary Vane
Vacuum Pumps - Save 35 - 50% off the price of comparable vacuum pumps.
Adixen (Alcatel) ACP Series Compact Dry Roughing Pumps - a frictionless pumping module, optimized for operation without internal lubricant.
Next-Advance Lab Products - affordable molecular biology instruments that automate mundane tasks, freeing scientists for repetitive, time consuming procedures.
- Direct Replacement for the Shimadzu QP5000 Filament.
PCI Analytics Products - product solutions for all Analytical Instrumentation
SilTite™ FingerTite, the next generation GC capillary ferrule system without the use of any tools.
(25% discount until Oct 31)
Direct Replacement for the Heated Capillary in the Thermo-Fisher Scientific TSQ & LCQ Mass Spectrometers now available
- Ideal for use in analytical instrumentation
- Will improve your laboratory workflow and reporting confidence in many ways
DigiVac Bench Top Vacuum Gauges
- Vacuum instrumentation with everything you need to go to work
Imtakt HPLC Columns
-offer a wide variety of unique stationary phases in their HPLC
columns
Programmable syringe pumps for controlled flow. Model NE-300 priced at only $275.00
NEW: Wiley 9th Edition - 660,000-850,000
spectra (a 65% increase). 
NEW: Agilent 5973/75 Replacement Source
Heater and Temperature Sensor 
NEW: SIS™ Direct Replacement
Filament for the Amatek/Dycor RGA Leak Detectors and Quadrupoles
(p/n 95381VE), which tests have shown increase service life. 
NEW: SIS™
Replacement Filter Elements For Edwards Oil Mist Eliminators -
Save up to 25% off the price of comparable Edwards replacement
elements. 
Identify mass spectra via library
search with the fully-evaluated, most widely used mass spectral
reference library, compiled by the National Institute of Standards
and Technology (NIST). 
View and capture images or video at
20x/400x power on a PC computer via attached USB cable. 