SRI DISSOLVED
GAS
GC
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HID, FID and/or
TCD detectors |
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10-port gas
sampling valve and valve oven |
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Gas extraction
loop |
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Peaksimple data system |
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Built-in standards
preparation module |
The DGA GC System
is designed to make dissolved gas analysis
easier ands less expensive than other methods.
No sample preparation is necessary prior to
injection into the DGA GC, avoiding
contamination made possible by transferring the
sample between various containers. The DGA GC
may also be used online. For example, you could
place the sample inlet tube directly into the
ocean and analyze the dissolved gases in
seawater.
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In the SRI DGA GC,
the sample is injected by peristaltic pump
through a unique gas extraction loop. The gas
extraction loop consists of permeation tubing
encapsulated in a trap-heated glass tube. The
permeation tubing is plumbed to the sample
inlet, the 10-port gas sampling valve and the
waste/sample outlet. When the sample is pumped
through the gas extraction loop, the dissolved
gases permeate through the membrane into the
extraction chamber. Solenoid valves are included
for purging the gas extraction loop with helium
between runs.
By reconnecting
a few tubing lines, the DGA GC can be configured
to prepare dissolved gas standards. A Tedlar
bag, or other container, filled with gas
standard of a known concentration is connected
to the standard pump. The standards preparation
vessel is filled with sample liquid, such as sea
water or waste water. The standard pump bubbles
gas standard into the standards preparation
vessel, equilibrating the liquid over time to
the known concentration. Equilibration takes
about one hour. |
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#SRI-8610-0035-1,
DISSOLVED GAS GC WITH HID (110V) |
$15,595.00 |
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#SRI-8610-0035-2,
DISSOLVED GAS GC WITH HID (220V) |
$15,595.00 |
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#SRI-8610-0036-1,
DISSOLVED GAS GC WITH TCD/HID (110V) |
$18,019.00 |
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#SRI-8610-0036-2,
DISSOLVED GAS GC WITH TCD/HID (220V) |
$18,019.00 |
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Options
& Upgrades: additional detectors,
6 channel USB PeakSimple data system
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