Agilent Installing the PerkinElmer FID Adapter for the Agilent Dual Plasma Burner Accessory G6600-60622
Contents
1. operating the base temperature of the FID adapter at approximately 150 C The outer temperature of the Burner and FID are hot and may cause burns if touched 8 Changing the FID Adapter Restrictor To change the FID adapter restrictor follow this procedure Remove the FID adapter from the GC Use a 1 4 nut driver with a hollow shaft to loosen the nut on the inside of the FID adapter Remove the restrictor using pliers if necessary Install the new restrictor with nut and ferrule in the reverse order It is necessary to remove the Agilent FID igniter from the FID adapter if it impedes access to the 1 4 nut nut and ferrule Heater cable Shroud mounting plate Heating block Figure 1 FID Adapter Assembly Order for PerkinElmer GCs Figure 2 Cross Section of Dual Plasma Burner Shroud with FID Adapter Assembly Order for PerkinElmer GCs Copyright 2007 Agilent Technologies Inc 2850 Centerville Road Wilmington DE 19808 1610 Printed in the USA Feb 2007 G 0 6600 900282. Note Installing the PerkinElmer FID Adapter for the Dual Plasma e Burner Accessory G6600 60622 Purpose To install the FID adapter for use with the Dual Plasma Burner Scope This procedure describes how to install FID adapters for use with the Agilent Dual Plasma Burner and PerkinElmer 9000XL or Clarus 500 gas chromatograph GC instruments The FID adapter attaches to the base of the Dual Plasma Burner with a 1 4 Swagelok nut and ferrule connection the adapter itself is specific to the GC with which it is used Safety Make sure all devices are powered off while performing the installation Materials e FID adapter kit e The Dual Plasma Burner Procedure 1 Make sure all devices are powered off Controller FID pump and GC 2 Attach the FID adapter to the Dual Plasma Burner as indicated in the figures 3 Set up the FID with normal flow rates about 30 mL min H2 350 400 mL min 4 Attach the burner with the FID adapter onto the GC s FID The FID adapter slides over the ignitor of the PerkinElmer FID and is held in place with two set screws ie Agilent Technologies Caution Note FID Flame Ignition Igniting the FID may be more difficult than usual because the restrictor is located near the ignitor It may be necessary to momentarily increase hydrogen flow rate and or lower air flow rate in order to ignite the flame easily Alternatively use of a butane lighter with a long handle or extern
3. al glow plug have been found to facilitate flame ignition Column Bleed Although this adapter burner combination should be able to withstand higher column bleeds than usual silicon dioxide particles originating from column bleed can still plug the restrictor and cause loss in sensitivity If this occurs pressure on the 355 SCD Controller will drop e g from 400 Torr to 250 Torr If this happens it will be necessary to change the restrictor or unplug it with a fine cleaning wire such as those used for cleaning syringe needles Therefore it is still desirable to minimize column bleed by using low bleed columns using final column temperatures as low as possible for a given analysis and making sure that carrier gas in free of water and oxygen and other foreign materials that promote column degradation and bleed SCD Sensitivity Approximately 10 of the FID exhaust gases are drawn into the Model 355 burner through the restrictor Therefore one should expect around 10 of the signal that one would obtain if all of the column effluent went to the detector Potential difficulties High levels of water can affect the performance of the SCD Apparently water can condense or chemisorb in the restrictor and react with SO in the FID exhaust to form sulfurous acid Since the acid is non volatile no response will be seen from the sulfur compound It is important to prevent water from condensing or chemisorbing on the restrictor This is accomplished by
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