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pressure to the tubing while tightening the fittings. The fittings should be as
tight as you can get them using just your fingers.
Use one length of approximately 72 inches (1.8 meters) of the 3/16 inch (5-
millimeter) I.D. Tygon
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the upper drain fitting on the back of the rinse station as noted in Figure 3-5
and Figure 3-7.
Insert the tubing carefully because the rinse station fitting grips the tubing
tightly. If you apply too much force, the fittings can break off. The 5-millimeter
Tygon
tubing may need to be stretched slightly on the end to allow insertion
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over the drain fitting.
Replace the rinse station on the unit. First, thread the tubing through the
guide holes on the rinse alignment block out the side of the unit. Then, align
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the guide posts on the rinse station with the alignment block and carefully
push the rinse station into place. Ensure the rinse station is mounted tightly
against the alignment block to ensure no rinse misalignment problems. Finally,
reattach the two thumbscrews to secure the rinse station.
To connect the rinse station tubing to the gas displacement pump using a
Argon Gas Supply for Gas Displacement Pump
gravity drain, complete the following steps with reference to Figure 3-7 and
Figure 3-8:
Two PFA bottles are provided for the rinse solutions. After filling each bottle
with the appropriate rinse solution, ensure that the caps for each bottle are
1
secure. A dedicated wrench (green color) is provided to tighten the caps.
Label the bottles #1 and #2; fill bottle #1 with pre-rinse solution (ex.
deionized water) and bottle #2 with full rinse solution (ex. 2% nitric acid).
Rinse Bottle to Rinse In Ports – Use two lengths of approximately 48 inches
(1.2 meters) each of 1/8 inch O.D. x 1/16 inch I.D. PTFE tubing. Attach one end
2
of each length of tubing into the two "RINSE IN" ports on the gas displacement
pump panel. Use the fittings and ferrules provided. Place the other end of
each length of tubing into a fitting on the top of the cap of each PFA bottle. The
tubing should extend through the fitting and into the rinse solution. If the
tubing will not go through the fitting, then try the other fitting. "RINSE 1 IN"
should be connected to bottle#1 with the pre-rinse solution and "RINSE 2 IN"
should be connected to bottle#2 with the full rinse solution. Ensure that each
fitting is tight.
Argon Out to Rinse Bottle – Use two lengths of approximately 48 inches (1.2
meters) each of 1/8 inch O.D. x 1/16 inch I.D. PTFE tubing. Note that this
3
tubing will have pressure relief valves already attached. Attach one end of each
length of tubing into the two "Argon Out" ports on the gas displacement pump
panel. Use the fittings and ferrules provided. Place the other end of each
length of tubing into the other fitting on the top of the cap of each PFA bottle.
Note that the tubing should only extend to the bottom of the fitting and not
below the level of the liquid in the bottle. The "ARGON OUT" connection below
the "RINSE 1 IN" port should be connected to bottle#1 with the pre-rinse
solution. The "ARGON OUT" connection below the "RINSE 2 IN" should be
ASX-112FR Autosamplers Operator's Manual
tubing provided for the rinse drain. Insert one end into
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Chapter 3: Installing the Autosampler
27
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