Vapor Generation Accessory VGAâ77 Operation manual

More documents

Recommendations

Info

REDACIDSAMPLEACIDSAMPLEVGA–77REDUCTANTINERT GAS "B" TO SEPARATORINERT GAS "A" TOREACTION COILcell in cell holder atfront of AA module'JHVSFÁ Cell resting in module holder, when not in use*$1ÁNPEVMFÁIf you are using the ICP reagent module, follow the steps below toconnect the plasma gas/liquid separator outlet to the ICP instrument.✒ Note It is possible to connect the vapor generator to the ICP-OES or ICP-MSsystems while the plasma is on.1. Set up the sample introduction system as described in the ICPoperation <strong>manual</strong>.2. Use a sharp scalpel to neatly cut a length (appropriate to yourinstallation) of the black fluoro-elastomer tubing supplied.3. Fit the large black fluoro-elastomer tubing over the vapor outletof the plasma gas/liquid separator.4. Measure the minimum length of the supplied polyethylene tubingrequired to connect the free end of the black fluoro-elastomertubing to the sample inlet of the ICP nebulizer. Neatly cut therequired length and make the connection.✰✰✰ Hot Tip For mercury determinations using SnCl 2, the drain peristaltic pump tubingfrom the spectrometer should be pinched to prevent loss of gaseousmercury through the pumped drain.2-20 Publication date: May 2004
VGA–77'JHVSFÁ Plasma gas/liquid separator for ICP module2.2.12 Connecting a mercury trapYou should use a sharp scalpel to cut two suitable lengths of thesupplied 6 mm diameter clear PVC tubing, and connect them to thetwo cell ports. Connect the free ends to the outlet and then to asuitable mercury trap in accordance with local regulations governingthe discharge of mercury vapor.✰✰✰ Hot Tip Fitting is easier if the ends of the tubing are first softened in hot water.CautionBubble type collectors must not be used, because the VGA-77 is notdesigned to accommodate the excessive back pressure generated bysuch collectors. Using bubble type collectors may lead to vaporbeing forced through the drain of the gas/liquid separator andresults in an unreliable signal.Collectors of loosely packed metal foil may be suitable if theycomply with local lawsPublication date: May 2004 2-21
Page 1 and 2: Vapor GenerationAccessory VGA-77Ope
Page 3 and 4: VGA-77Declaration of ConformityWe h
Page 5 and 6: VGA-77Contents ÁSafety practices a
Page 7 and 8: VGA-774.4 Basic methods 4-64.4.1 An
Page 10 and 11: VGA-77Electrical hazardsChemical ha
Page 13: VGA-771. Introduction1.1 About the
Page 18 and 19: REDACIDSAMPLEVGA-772.2 Installation
Page 20 and 21: VGA-772.2.2 Gas supply requirements
Page 22 and 23: VGA-774FMFDUJOHÁUIFÁWPMUBHFÁÁRe
Page 24 and 25: VGA-775. Fit the end of the tube fr
Page 26 and 27: VGA-773. Connect the inlet end of t
Page 28 and 29: VGA-77'JHVSFÁÁPull the holder for
Page 30 and 31: VGA-77To install the burner clamp f
Page 32 and 33: VGA-77'JHVSFÁÁAdapter and Standar
Page 34 and 35: VGA-77*OTUBMMJOHÁBÁGMPXUISPVHIÁN
Page 38 and 39: VGA-772.2.13 Connection to the Auto
Page 40 and 41: VGA-77Use the integration mode with
Page 42 and 43: VGA-773.1.3 AA setup1. Remove the c
Page 45 and 46: VGA-774. Continue the previous step
Page 47 and 48: VGA-77❏❏Save your revised metho
Page 49 and 50: VGA-774. Analytical notes4.1 Backgr
Page 51 and 52: VGA-77For example, for Te and Se, a
Page 53 and 54: VGA-774.3 Laboratory procedures4.3.
Page 55 and 56: VGA-774.4.1 AntimonyPrepare samples
Page 57 and 58: VGA-77CautionRemember that AA mercu
Page 59 and 60: VGA-774.4.7 TinThe best results for
Page 61 and 62: VGA-775. Maintenance and spareparts
Page 63 and 64: VGA-77Under some circumstances, the
Page 65 and 66: VGA-77An alternative method of remo
Page 67 and 68: VGA-775.3 Spare parts✒ Note Use o
Page 69 and 70: VGA-776. Appendix-AA Performancelog

Vapor Generation Accessory VGAâ77 Operation manual

Create successful ePaper yourself

Delete template?

Save as template?

Vapor Generation Accessory VGAâ77 Operation manual