| 1.
Pick a chassis. What is your application? If you
will be injecting by gas sampling valve, purge & trap, thermal
desorber, or any other injector types in addition to on-column, then
choose our versatile Model 8610C, which
can mount up to five different injectors simultaneously. |
 |
|
|
For
dual oven applications or two GCs in one, choose the 8610D
chassis. |
|
If you
will be injecting by syringe only, you can choose the ultra-compact
Model 310.
|
For
industrial rack systems, choose our Model
410 rackmount chassis.
|
|
If
you want to add detectors to an existing GC, choose the Model
110.
|
|
|
| For
any model GC chassis except the 110, a single channel PeakSimple data
system is standard equipment. If you'll be ordering more than one
detector on your GC, you will need a four or six channel data system.
The one and four channel data systems connect to your Windows™
computer's serial port, and the six channel model connects to the
USB port. |
| |
|
| 2.
Choose your detectors. Detector types are selected
depending on the particular measurement application , the required
detection limit, matrix interferences, and/or regulatory guidelines.
Since all five of our chassis can mount up to four
detectors simultaneously (some can mount
five or even six), you can perform a surprising variety of applications
with one instrument. |
|
DETECTOR
|
SELECTIVITY
|
SENSITIVITY
(approximate)
|
|
|
hydrogen
and hydrocarbons
|
500ppm
|
|
|
universal
|
200-500ppm
|
|
|
hydrocarbons
|
1ppm
|
|
|
chlorinated
and brominated molecules
|
10ppb
|
|
|
hydrocarbons,
chlorinated and brominated molecules
|
10ppm
|
|
|
universal,
except neon
|
10ppm
|
|
|
aromatics
and molecules with double carbon bonds
|
10ppb
|
|
|
nitrogen
and phosphorus
|
10ppm
|
|
|
nitrogen,
phosphorus, chlorinated and brominated molecules
|
100ppb
|
|
|
nitro
functional groups (TNT, etc.; explosives)
|
1ppb,
50ppb
|
|
|
electronegative
compounds
|
10ppb
|
|
|
reducing
gases (like hydrogen and CO)
|
10ppb
|
|
|
sulfur
or phosphorus
|
200ppb
and 10ppb
|
|
|
sulfur
or phosphorus, and hydrocarbons
|
200ppb,
10ppb, and 100ppm
|
|
|
sulfur
and phosphorus simultaneously
|
200ppb
and 10ppb
|
|
|
hydrocarbons,
sulfur and phosphorus simultaneously
|
100ppm,
200ppb, and 10ppb
|
|
| |
|
|
|
| 3. Choose
your injectors. Injector types
are selected by the user depending on the particular measurement application,
detection limit, and regulatory requirements. Each GC chassis except
the 110 comes standard with an On-Column injector.
The
Heated Flash
Vaporization,
Heated Split/Splitless, and
PTV injectors are upgrades to the standard On-Column injector. There
are 17 injector types from which to choose.
Up to five injectors may be mounted simultaneously on Models 8610C
and 8610D. The Model 310 will accommodate a single On-Column,
Heated Flash Vaporization, Heated Split/Splitless,
or PTV injector. Rack-mountable Model 410 can accommodate
a gas sampling valve and a single On-Column,
Heated Flash
Vaporization,
Heated Split/Splitless, or PTV injector. |
|
Sample
Types and Appropriate Injectors
|
| LIQUIDS: |
On-column,
heated flash vaporization, heated split/splitless, PTV, heated
static headspace, purge & trap, liquid injection valve,
or liquid autosampler |
| SOLIDS: |
Thermal
desorber, heated static headspace, PTV, or Method 5035 purge
& trap |
| GASES: |
On-column,
gas sampling valve, Method TO-14 air concentrator, or heated
static headspace |
| SPME
FIBERS: |
Heated
flash vaporization with low volume SPME liner, or heated split/splitless |
|
| |
| 4.
Accessorize. |
|
|
|
|
We
have gas line installation kits for any type of gas
required for SRI GC systems operation.
|
Our
internal "whisper quiet" air compressor can supply
FID air, air carrier, or detector makeup gas.
|
|
 |
The methanizer
accessory allows FID detection of CO and CO2
down to the ppm range. |
|
|
