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Aridus II™ Operator’s Manual

Chapter 6: Maintaining the Aridus II™

35

NOTE:

If aqueous samples were analyzed, 2% HNO

3

may be used to rinse the

membrane.  If organic solvents such as toluene or hexane were analyzed, rinse
the membrane with 2-propanol.  If non-volatile organic samples (e.g., oils
diluted in an organic solvent) were analyzed, rinse the membrane with toluene
or hexane.  After rinsing with such a solvent, perform a second rinse with 2-
propanol.

CHEMICAL BURN HAZARD
Please observe any necessary safety precautions (safety glasses, gloves,
etc.) when handling HNO

3

solutions and organic solvents.

Removal of the Membrane Desolvator Modular
Assembly

1

Turn the AC power switch to off (0) and disconnect the AC power cord. Allow

the unit to cool to room temperature (approx. 15-30 minutes).

Power should be turned off at this time. If left on, the following procedure could
cause permanent damage to the internal gas flow controllers.

2

Turn off all gas supplies to the Aridus II

™

.

3

Disconnect the SWEEP GAS OUT tubing from the ½ inch threaded fitting on the

back of the Aridus II

™

.

4

Disconnect the ARGON SUPPLY and NITROGEN SUPPLY lines from the Quick-

connect fittings on the back of the Aridus II

™

. Do this by pressing against the

outside of the quick-connect fitting and pulling the gas line directly out. See

Figure 6-3.

Figure 6-3.

Removal of Argon Supply Line (for Sweep Gas).

WARNING

CAUTION

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Содержание Aridus II

Страница 1: ...CETAC Aridus II Desolvating Nebulizer System Manual Part Number 480144 rev2 Operator s Manual...

Страница 2: ...strives to provide the scientific community with an unparalleled combination of effective technology and continuing value Modular upgrades for existing instruments will continue to be a prime consider...

Страница 3: ...Autosampler to the Host Computer 18 Connecting the Nebulizer to the Aridus II 18 QuickWash Fast Washout Accessory 21 4 Verifying Installation 23 Initial Operating Procedure 23 ICP MS Operation 24 Syst...

Страница 4: ...44 Nitrogen gas controller will not provide 20 mL min of nitrogen flow or flow is unstable 44 Nebulizer Plasma Problems 44 Poor and or unstable aerosol generation 44 Sample flow rate problems 45 Poor...

Страница 5: ...y and carbon deposition on ICP MS sampling cones Using the Aridus II system for sample introduction greatly reduces these problems It is strongly noted that the degree of sensitivity enhancement is de...

Страница 6: ...CHEMICAL INJURY HAZARD The Aridus II Desolvating Nebulizer System is intended for use only by qualified operators who have been trained in safe laboratory practices Make sure you know the hazards asso...

Страница 7: ...nebulizer are also available Nebulizer Flush Kit Flush kit for cleaning the C Flow PFA nebulizer NOTE Contact CETAC Technologies if you need additional accessories or added features to integrate the...

Страница 8: ...ources New versions of this manual may be available under Service and Support on CETAC s Web site www cetac com CETAC Technologies Customer Service and Support Phone 1 800 369 2822 USA only 1 402 733...

Страница 9: ...ms The following sections discuss space and power requirements Space Requirements Most analytical applications benefit from the shortest sample flow path A one meter length of Teflon lined PVC tubing...

Страница 10: ...ntroduction system before Aridus II installation If the sensitivity oxide ratios and overall performance do not meet instrument specifications consult the ICP MS Operator s Manual If ICP MS performanc...

Страница 11: ...cond container holds the 15 L trap bottle the ICP MS interface kit and the Aridus II completion kit This container also holds the QuickWash fast washout accessory if ordered A third container holds th...

Страница 12: ...Aridus II Operator s Manual 12 This page is intentionally blank...

Страница 13: ...supplied with each Aridus II Use only these power cords or exact replacements To connect the Aridus II to a power source plug the cord into the power module located on the back panel of the Aridus II...

Страница 14: ...ure 3 1 depicts the attachment of the standard 12 5 glass joint While this is a common type of interface the interface for the operator s particular ICP MS torch may be different Figure 3 1 Connecting...

Страница 15: ...T port Attach the adaptor of the other end of this line to the corresponding threaded fitting on the lid of the 15 L trap bottle Then connect the trap bottle exhaust line to the remaining port on the...

Страница 16: ...supply using the union tee Connect the O D tubing labeled ARGON and NITROGEN to the respective supply ports on the back of the Aridus II The O D tubing for each is simply inserted into the correspondi...

Страница 17: ...e peristaltic pump and out the top to waste This is shown by the arrows next to the pump 5 The outlet of the drain line may be placed in a suitable waste receptacle such as a beaker 6 Close the shoe o...

Страница 18: ...rotocol is the standard configuration There is an RS 232C serial port on the ASX 112FR and a serial interface kit is shipped with the autosampler The USB protocol is an optional configuration The para...

Страница 19: ...ling the Aridus II 19 Figure 3 6 Attachment of Spray Chamber Tubing to Drain Port 3 Insert the nebulizer gas line 4mm O D tubing into the press lock fitting labelled NEB GAS See Figure 3 7 Figure 3 7...

Страница 20: ...FA Nebulizer 5 Insert the C Flow PFA nebulizer into the spray chamber port See Figure 3 9 Ensure that the nebulizer is fully inserted through both o rings Figure 3 9 Insertion of C Flow PFA Nebulizer...

Страница 21: ...nd finger tighten Refer to the ASX 112FR Operator s Manual for further instructions QuickWash Fast Washout Accessory The Aridus II may also be equipped with the QuickWash fast washout accessory The Qu...

Страница 22: ...Aridus II Operator s Manual 22 Figure 3 11 Aridus II with ASX 112FR Autosampler and QuickWash Accessory...

Страница 23: ...supply outlet 2 Turn on the power switch and allow the heaters to preheat After approximately 5 10 minutes all stages should be operating at a steady state as indicated by temperature readings of 160...

Страница 24: ...ma as instructed in the ICP MS operating manual 3 After the plasma has stabilized slowly increase the SWEEP GAS control to a setting of approximately 3 0 L min NITROGEN flow should remain at the zero...

Страница 25: ...on nitrogen addition should be weighed against these interferences 4 Other parameters such as ICP power ICP sampling position and ion lens settings may need to be adjusted to achieve best performance...

Страница 26: ...Aridus II Operator s Manual 26 This page is intentionally blank...

Страница 27: ...onents that wear out during normal usage The following sections explain how to meet these conditions NOTE Damage or malfunction that results from unsatisfactory operating conditions may constitute mis...

Страница 28: ...e Failure to replace these components will result in deterioration of analytical performance Sample Transfer Line Teflon Lined PVC Tubing The sample transfer line should be replaced when it becomes gr...

Страница 29: ...tches on the Aridus II and ASX 112FR Autosampler when applicable Temperature Controller Operation The temperature controllers for the spray chamber and the membrane desolvation system display the actu...

Страница 30: ...PA for 10 minutes before running the aqueous samples This will condition the spray chamber and membrane desolvation system When returning to organic samples use 2 propanol to re condition the Aridus I...

Страница 31: ...Aridus II is an important task Failure to clean the Aridus II can cause increased wear and reduce the system s operating life It is especially important to clean up any liquid spills particularly of a...

Страница 32: ...d secure the Aridus II front door Maintaining the Nebulizer and Spray Chamber The C Flow PFA nebulizer may be removed from the unit while the plasma is on If droplets collect on the nebulizer tip remo...

Страница 33: ...nebulizer To use the flush kit fill the syringe with deionized water Insert the sample line from the nebulizer into the tubing provided with the flush kit Connect the tubing to the syringe and apply...

Страница 34: ...ockwise to set the fuse in place Use of a different fuse other than those specified can damage the electrical components of the Aridus II constitute a fire hazard or result in personal injury 6 Replac...

Страница 35: ...nts Removal of the Membrane Desolvator Modular Assembly 1 Turn the AC power switch to off 0 and disconnect the AC power cord Allow the unit to cool to room temperature approx 15 30 minutes Power shoul...

Страница 36: ...om the lid of the Aridus II There are a total of 12 screws four top four left side four right side 9 Carefully remove the lid of the Aridus II by lifting the lid straight up and off 10 The membrane de...

Страница 37: ...hamber Oven 12 Completely loosen the three spring loaded screws which secure the membrane desolvator assembly to the Aridus II cabinet See Figure 6 6 Figure 6 6 Detachment of Membrane Desolvator Assem...

Страница 38: ...ves 14 Detach the connection to the rear mounted cooling fan See Figure 6 8 Figure 6 8 Detachment of Cooling Fan Connection 15 Detach the multi wire connector to the membrane desolvator See Figure 6 9...

Страница 39: ...ane desolvator 1 Locate the membrane rinse kit in the Aridus II completion kit Using the adaptors and tubing provided in the rinse kit connect the two ends from the Y union to the SWEEP GAS OUT port a...

Страница 40: ...ottle Loosen the cap on the bottle and allow the cleaning solution to siphon into the unit until the solution emerges from the SAMPLE OUT and RINSE ports The flush volume of the membrane assembly is a...

Страница 41: ...d and the gas lines to the back of the Aridus II Turn the power on and set the SWEEP GAS control to a setting of 3 0L min Let the SWEEP GAS run through the Aridus II for at least 30 minutes to remove...

Страница 42: ...Aridus II Operator s Manual 42 This page is intentionally blank...

Страница 43: ...II problems If you cannot solve a problem using the steps given in this chapter contact CETAC Technologies Customer Service and Support Phone 800 369 2822 USA only 402 733 2829 Fax 402 733 1932 E Mai...

Страница 44: ...zer Plasma Problems Poor and or unstable aerosol generation Insufficient nebulizer flow or pressure The argon nebulizer gas flow should be in a 0 7 1 1 L min range If such a flow range cannot be achie...

Страница 45: ...l criteria for assessing performance are signal to background ratios and elemental oxide levels Liquid accumulation in spray chamber Replace the peristaltic pump drain tubing and adjust the pump shoe...

Страница 46: ...ion interferences Decrease nitrogen flow Nebulizer self aspiration stops The nebulizer capillary may be obstructed Use the C Flow flush kit to help remove the obstruction Refer to Maintaining the Arid...

Страница 47: ...s infectious agents or other materials constituting health hazards to CETAC employees Product Warranty Statement NOTE Contact CETAC Technologies or refer to the warranty card which came with your prod...

Страница 48: ...THER OBLIGATION CETAC ASSUMES NO RESPONSIBILITY FOR INCIDENTAL CONSEQUENTIAL OR OTHER DAMAGES EVEN IF ADVISED OF SUCH POSSIBILITY INCLUDING BUT NOT LIMITED TO LOSS OR DAMAGE OF PROPERTY LOSS OF REVENU...

Страница 49: ...anty defect exists the buyer shall be notified of the repair cost At such time the buyer must issue a valid purchase order to cover the cost of repair and freight or authorize the products to be shipp...

Страница 50: ...Aridus II Operator s Manual 50 This page is intentionally blank...

Страница 51: ...n Operating Temperature 0 C to 55 C 32 to 131 F Operating Altitude Up to 3 048 m 10 000 ft Operating Relative Humidity 20 to 70 non condensing Non Operating Relative Humidity 0 to 95 non condensing Po...

Страница 52: ...ectrical Characteristics Power requirements Power Supply Input AC Voltage Frequency and Current Switch Selected 120 VAC 10 50 60 Hz 6 A 220 VAC 10 50 60 Hz 3 A Installation Category CAT II Line voltag...

Страница 53: ...included 24V power supply The operator should check the power supply cord condition The equipment should not be operated if the mains inlet is cracked or broken Any obvious damage to the case from a...

Страница 54: ...t power or turn the instrument on Operating Environment SHOCK HAZARD To reduce the risk of fire hazard and electrical shock do not expose the unit to rain or humidity To reduce the risk of electrical...

Страница 55: ...ARNING notice denotes a hazard It calls attention to a procedure practice or the like that if not correctly performed or adhered to could result in personal injury Do not proceed beyond a WARNING noti...

Страница 56: ...EMENT SURFACES CHAUDES LAISSER LE COUVERCLE HERM TIQUEMENT FERM POUR ACC DER METTRE LA TEMP RATURE DU FOUR Z RO OUVRIR LE COUVERCLE ET LAISSER REFROIDIR 5 MINUTES AVANT DE TOUCHER LA VERRERIE OU TOUTE...

Страница 57: ...UT CONTACT AVEC LES HAUTES TENSIONS PEUT ENTRAINER LA MORT OU DES BLESSURES S V RES CE PANNEAU NE DOIT TRE ENLEVE QUE PAR UN R PARATEUR QUALIFI AVERTISSEMENT TOUT CONTACT AVEC LES HAUTES TENSIONS PEUT...

Страница 58: ...FCC Rules and Regulations CANADIAN NOTICE This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference causing equipment st...

Страница 59: ...D Light emitting diode Low Flow Sample flow rate of approximately 100 L min OD Outside diameter PEEK Polyetheretherketone PFA Perfluoroalkoxy PSI Pounds per square inch PTFE Polytetraflouroethylene PV...

Страница 60: ...Aridus II Operator s Manual 60 This page is intentionally blank...

Страница 61: ...nnect 53 membrane desolvator assembly 35 nebulizer connecting 18 20 nebulizer problems 44 nitric acid 30 operator qualifications 6 optimization 24 organic samples 30 organic solvents 25 peristaltic pu...

Страница 62: ...Manual Part Number 480144 rev2 Printed in USA...

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