Vapor Generation Accessory VGAâ77 Operation manual

More documents

Recommendations

Info

VGA–772.2.13 Connection to the AutosamplerThe VGA-77 may be connected to a Varian or compatible autosamplerfor automatic sampling. Use a suitable piece of tubing to join thesample capillary on the VGA-77 to the Teflon tubing attached to theprobe of the autosampler.2-22 Publication date: May 2004
VGA–773. OperationWarningVapor generation methods of analysis involve the generation oftoxic hydrides and require the use of materials which are toxic,highly corrosive or otherwise hazardous. Careless, improper, orunskilled use of such materials can cause serious personal injury.Always ensure that laboratory safety practices governing the use,handling and disposal of such materials are strictly observed. Thesesafety practices should include the wearing of appropriate safetyclothing.In the VGA-77 system, highly concentrated acids are being pumpedunder pressure. If a leak occurs, acid could be sprayed from thesystem and cause serious personal injury. Always wear approvedsafety glasses warranted to protect the eyes.Never pump concentrated sulfuric acid through theVGA-77 system.In the VGA-77 system, the vapor is generated continuously whilesolutions are being pumped. This provides the convenience andadvantages of a continuous analytical signal.3.1 Setup3.1.1 General setup1. Check you have the correct module installed.2. Ensure that the inert gas supply to the VGA-77 is on, with thecylinder regulator set to the recommended pressure of350 kPa (50 psi).3. Ensure that the peristaltic pump is adjusted correctly as detailedin section 3.1.2 below.4. Set up any other accessories you require (for example, printers orsamplers) according to their instruction manuals.5. Set the instrument parameters for the element to be determined.Publication date: May 2004 3-1
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 36 and 37: REDACIDSAMPLEACIDSAMPLEVGA-77REDUCT
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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?

Vapor Generation Accessory VGAâ77 Operation manual