• Created : 
  • Modified : 
  • Category :  Agilent Knowledge Portal
  • Entry Type :  Article
  • Product Type :  Atomic Absorption Systems Atomic Spectroscopy Accessories
  • Component :  Atomic Absorption Instruments Atomic Spectroscopy Autosamplers Atomic Spectroscopy Sample Introduction Accessories
  • Product Name :  240FS AA 280FS AA SIPS 10/20 Sample Introduction Pump System
  • Task :  Maintenance Operation
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Replacing and Conditioning the SIPS Pump Tubing

Answer

This Information Applies To: Agilent SIPS 10/20 and Flame AA

Issue

Replacing and conditioning the SIPS pump tubing.

Background

Whenever new pump tubes have been installed, it is necessary to condition the tubing before the analysis to prevent signal drift as the tubing settles during operation.

  
Tips: For recommended maintenance of the SIPS 10/20, see SIPS 10/20 Maintenance.

Steps to Follow

Replacing the Pump Tubing

When pump tubing needs to be replaced, it is recommended to follow these additional maintenance and operational procedures:

  1. Release the plastic pump bands from the T-piece.
  2. Remove the nebulizer capillary and silicon rubber tubing from the T-piece.
  3. Lift the T-piece off the SIPS unit and rinse it with water. Use a nebulizer cleaning wire to clean the inside of the metal connectors in the T-piece.
  4. Place the T-piece in an ultrasonic bath with laboratory detergent for 5 minutes and then rinse it with de-ionized water.
  5. Test the flow from each of the tantalum arms of the T-piece using a wash bottle of de-ionized water to force water down each arm. Watch the flow from the other two arms while blocking the large inlet with your finger. You should see the same flow from all outlets.
  6. Clean the plastic pump band by wiping it with a tissue moistened with alcohol.
  7. Wipe the pump rollers using an alcohol-moistened cloth. Ensure they are free of corrosion and dirt, and rotate freely.
  8. Clean the nebulizer and Pt/Ir capillary using the standard procedure shown in the article How to clean a blocked nebulizer of an Agilent Flame Atomic Absorption System.
  9. Assemble the SIPS system and install the pump tube in place.
  10. Condition the pump tube. 
  
Tips: For an overview of the use of the SIPS 20 with a Flame AA instrument and SpectrAA Software, see Agilent Fast Sequential (FS) AA Instruments, SIPS 20 and PROMT.

Conditioning the SIPS Pump Tubing

Before each use of a new tube, the tubing should be conditioned using the following procedure:

  1. Connect the outlet of the pump tube to a waste vessel.
  2. Replace the de-ionized water at the inlet tube with 1% Decon or Triton detergent solution. From the instrument page, select Condition pump tubes from the menu. Set the time limit to 15 minutes and press OK. Pump this solution until the time has lapsed.
  3. Replace the detergent solution with de-ionized water and pump for an additional 30 minutes. This will complete the conditioning of the tube.
  4. Connect the outlet tube to the SIPS T-piece. The SIPS unit is now ready for regular operation.
  
Tips: Triton X-100 is also known as octyl phenol decaethylene glycol ether, CAS No. 9002-93-1

 

 
Learn how to effectively maintain and operate your Agilent SIPS 10/20 System: 
Agilent Sample Introduction Pump System SIPS 10/20 user manual on Agilent.com

 

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