Instrumentation and Mass Spectrometry

Discussion List

• protein precipitation: organic ratio vs plasma volume

  29 views 0 comments 0 points Most recent by Neuchuplc February 2016
• Pressure issues

  13 views 0 comments 0 points Most recent by Summer December 2015
• HILIC - system conditions

  16 views 0 comments 0 points Most recent by amanda5670 July 2014
• Use of ion-pair reagents (such as sodium lauryl sulfate) on UPLC

  Answered ✓ 244 views 2 comments 0 points Most recent by lizh June 2014
• Acquity data output to chromeleon

  Answered ✓ 143 views 1 comment 0 points Most recent by lizh June 2014
• UV baseline movement.

  35 views 6 comments 0 points Most recent by DGJL June 2014
• Strange security and general errors

  Answered ✓ 22 views 0 comments 0 points Most recent by DanRamlose May 2014
• Negative peaks and disturbed baseline

  14 views 0 comments 0 points Most recent by deleon May 2014
• normal phase chromatography

  2 views 0 comments 0 points Most recent by filipaoc January 2014
• Waters introduces improved nano- to microsale separations with the new ACQUITY UPLC M-Class System.

  4 views 0 comments 0 points Most recent by michelleaf January 2014
• HPLC to UPLC method conversion, cGMP quality concerns

  147 views 2 comments 0 points Most recent by SChrisman January 2014
• Acquity SQT lockout

  Answered ✓ 2 views 0 comments 0 points Most recent by ConorM December 2013
• different retention time between standards and EDTA plasma pool

  Answered ✓ 7 views 0 comments 0 points Most recent by Hussain October 2013
• UPLC XevoTQ-S Pesticide Residue Analysis requires increased Maintenance

  Answered ✓ 2 views 1 comment 0 points Most recent by ShaunWat78 October 2013
• Sugar columns on H-Class

  Answered ✓ 2 views 2 comments 0 points Most recent by Brian September 2013
• High pressure during equilibration before first injection

  Answered ✓ 80 views 3 comments 0 points Most recent by KWB July 2013
• Testosterone background in UPLC

  Answered ✓ 81 views 1 comment 0 points Most recent by MCLong July 2013
• Timed gain settings on FLR detector gives off scale readings when maintaining baseline

  Answered ✓ 16 views 0 comments 0 points Most recent by NHTP June 2013
• new HPLC Alliance pump qualifications

  1 view 0 comments 0 points Most recent by mmarie June 2013
• Blank problems

  Answered ✓ 4 views 3 comments 0 points Most recent by Eriksp May 2013
• H-Class FTN Sample manager - How to calibrate Z-Axis?

  Answered ✓ 541 views 3 comments 0 points Most recent by Vic37 May 2013
• Method tranlation for changing ACN to MEOH

  1 view 4 comments 0 points Most recent by MikeT May 2013
• Peak shape changing; peak heigh gradually decreased to a half

  Answered ✓ 3 views 2 comments 0 points Most recent by rune April 2013
• New FLR, sample set can't make it past the first injection

  Answered ✓ 77 views 2 comments 0 points Most recent by MikeFink April 2013
• Diquat, Amitrole and UPLC/MS

  Answered ✓ 9 views 0 comments 0 points Most recent by ifth April 2013
• ACQUITY Console, Automation

  Answered ✓ 1 view 0 comments 0 points Most recent by ehenning March 2013
• SEC - Automatic Molecular Weight Calculation

  Answered ✓ 16 views 2 comments 0 points Most recent by StefanoPorzio March 2013
• plate type

  180 views 2 comments 0 points Most recent by NSmart March 2013
• FTN Needle Seal Readiness test

  Answered ✓ 2K views 7 comments 0 points Most recent by ehenning March 2013
• Agilent 11001200 Error Message

  9 views 0 comments 0 points Most recent by vinceD March 2013