Recent Discussions

Discussion List

• Acetonitrile adduct in esi positive mode.

  Answered ✓ 50 views 3 comments 0 points Most recent by RD November 2009Instrumentation and Mass Spectrometry
• Pump Problems

  Answered ✓ 1.2K views 6 comments 0 points Most recent by dangerousbrian November 2009Instrumentation and Mass Spectrometry
• Unusual square-wave around 30-40%B in an 1 - 40%B gradient over 180 minutes

  Answered ✓ 5 views 3 comments 0 points Most recent by atus November 2009Instrumentation and Mass Spectrometry
• on-line SPE coupled with UPLC

  Answered ✓ 4 views 5 comments 0 points Most recent by jed1 November 2009Instrumentation and Mass Spectrometry
• Poor AAA Reproducibilty

  Answered ✓ 23 views 8 comments 0 points Most recent by tom_w November 2009Instrumentation and Mass Spectrometry
• sample organizer

  Answered ✓ 33 views 7 comments 0 points Most recent by lizh November 2009Instrumentation and Mass Spectrometry
• Acquity UPLC C8 300A Columns

  Answered ✓ 56 views 1 comment 0 points Most recent by dougm November 2009Instrumentation and Mass Spectrometry
• PDA vs TUV

  Answered ✓ 5.5K views 6 comments 0 points Most recent by Lee1K1 November 2009Instrumentation and Mass Spectrometry
• "dirty" gradient end at low wavelengths

  Answered ✓ 2 views 1 comment 0 points Most recent by lizh October 2009Instrumentation and Mass Spectrometry
• Empower custom calculation

  Answered ✓ 72 views 3 comments 0 points Most recent by lizh October 2009Instrumentation and Mass Spectrometry
• Empower Calculation

  Answered ✓ 32 views 1 comment 0 points Most recent by rune October 2009Instrumentation and Mass Spectrometry
• Rezeroing my PDA

  Answered ✓ 6 views 6 comments 0 points Most recent by lizh October 2009Instrumentation and Mass Spectrometry
• Max Ent

  Answered ✓ 12 views 1 comment 0 points Most recent by EdS October 2009Instrumentation and Mass Spectrometry
• Peak tailing and drift throughout a run

  Answered ✓ 90 views 5 comments 0 points Most recent by MikeJ October 2009Instrumentation and Mass Spectrometry
• Xbridge 2.5um, its brilliant.

  Answered ✓ 65 views 5 comments 0 points Most recent by JonoAustin October 2009Instrumentation and Mass Spectrometry
• Generic HPLC 2ml vials ok to use in Acquity system?

  Answered ✓ 349 views 6 comments 0 points Most recent by dougm October 2009Instrumentation and Mass Spectrometry
• Carryover?

  Answered ✓ 8 views 3 comments 0 points Most recent by DavDag October 2009Instrumentation and Mass Spectrometry
• UPLC/TQD deviation

  Answered ✓ 21 views 7 comments 0 points Most recent by DM October 2009Instrumentation and Mass Spectrometry
• retention behavior on a HILIC column (new to HILIC)

  Answered ✓ 734 views 8 comments 0 points Most recent by mda1224 October 2009Instrumentation and Mass Spectrometry
• %RSD failed

  Answered ✓ 2.6K views 5 comments 0 points Most recent by stephaneDC October 2009Instrumentation and Mass Spectrometry
• Experience to use AcQuity for regular HPLC column

  Answered ✓ 49 views 2 comments 0 points Most recent by KWB October 2009Instrumentation and Mass Spectrometry
• The problem of peak draft for help

  Answered ✓ 82 views 10 comments 0 points Most recent by Lee1K1 October 2009Instrumentation and Mass Spectrometry
• ELS detector gain

  Answered ✓ 2.6K views 10 comments 0 points Most recent by Kimiya October 2009Instrumentation and Mass Spectrometry
• measuring amount injected

  Answered ✓ 2 views 1 comment 0 points Most recent by lizh October 2009Instrumentation and Mass Spectrometry
• Acquity UPLC User's Meeting 2009

  Answered ✓ 2 views 2 comments 0 points Most recent by davidconca September 2009Instrumentation and Mass Spectrometry
• Stand Alone Software Issues

  Answered ✓ 42 views 6 comments 0 points Most recent by lizh September 2009Instrumentation and Mass Spectrometry
• Speed of Mobile Phase filtration

  Answered ✓ 13 views 7 comments 0 points Most recent by lizh September 2009Instrumentation and Mass Spectrometry
• Leakage of "Metering Syringe Valve" and problems with weak wash syringe

  Answered ✓ 487 views 6 comments 0 points Most recent by rune September 2009Instrumentation and Mass Spectrometry
• False positive results

  Answered ✓ 14 views 4 comments 0 points Most recent by Newman768 September 2009Instrumentation and Mass Spectrometry
• Stainless steel needle

  Answered ✓ 2 views 5 comments 0 points Most recent by lizh September 2009Instrumentation and Mass Spectrometry