Instrumentation and Mass Spectrometry

Discussion List

• Shift in retention time for 2 internal standards, but not all, between runs

  Answered ✓ 112 views 5 comments 0 points Most recent by adameb January 2019
• Replacing the sample injection o ring

  Answered 11 views 3 comments 0 points Most recent by kelinli January 2019
• PDA Detector: Wavelength Verification Failure

  Answered 1.8K views 2 comments 0 points Most recent by Pflan January 2019
• Project Integrity Error

  Answered 51 views 1 comment 0 points Most recent by HeatherLongden December 2018
• Acquity I-class continues to over pressure

  Answered 93 views 4 comments 0 points Most recent by MarcNoble November 2018
• Acquity QSM Problem

  Answered 386 views 3 comments 0 points Most recent by MarcNoble November 2018
• contaminant +142

  Answered 25 views 1 comment 0 points Most recent by ydan1977 November 2018
• System channel primeing/purging

  Answered 713 views 4 comments 0 points Most recent by MJS November 2018
• System over pressure at 5000 psi

  Answered 51 views 2 comments 0 points Most recent by rob_burgess October 2018
• Acquity: Z-Axis Calibration Not Retained

  Answered 638 views 9 comments 1 point Most recent by djarois October 2018
• Can' t get rid of the carryover

  Answered 272 views 5 comments 0 points Most recent by mengo September 2018
• Difference between numbers for the curve effects

  Answered ✓ 61 views 4 comments 0 points Most recent by Wouter August 2018
• Problem with Column Heater

  51 views 2 comments 0 points Most recent by feredk72 August 2018
• Waters 2690

  Answered 223 views 2 comments 0 points Most recent by Josee August 2018
• Aluminum Seal Tape?

  Answered 23 views 1 comment 0 points Most recent by Pflan August 2018
• How can I wash system tubing? do you have generic protocol for that?

  Answered 35 views 1 comment 0 points Most recent by vinnyh99 August 2018
• Empower 2 - Data connection failed error

  Answered 204 views 1 comment 0 points Most recent by Durgaprasad August 2018
• Over pressure inAcquity UPLC BEH C18 column (1.7um, 2.1 x 100mm) column

  Answered 147 views 2 comments 0 points Most recent by vinnyh99 July 2018
• Can a new column change retention times?

  Answered ✓ 52 views 5 comments 0 points Most recent by Empower2018 July 2018
• Clean an hplc?

  Answered 208 views 2 comments 0 points Most recent by BL_ July 2018
• Injection loop change to larger volume, but injection volume can't be changed

  Answered ✓ 19 views 1 comment 0 points Most recent by Pflan July 2018
• Removing "V" vial positions

  43 views 3 comments 0 points Most recent by DavidHPLC July 2018
• Modifying an Acquity QDa sugars application

  41 views 4 comments 0 points Most recent by MikeL42 July 2018
• Bumpy baseline only at certain section in gradient.

  Answered ✓ 67 views 2 comments 0 points Most recent by Empower2018 July 2018
• lboone

  Answered ✓ 16 views 1 comment 0 points Most recent by cemery July 2018
• QDa freeze issue

  Answered ✓ 27 views 2 comments 0 points Most recent by Kuro June 2018
• Overpressure in nano acquity

  Answered 1 view 1 comment 0 points Most recent by Pflan June 2018
• What kind of column oven?

  Answered 13 views 1 comment 0 points Most recent by Pflan June 2018
• Help a QDa rookie

  Answered 63 views 1 comment 0 points Most recent by Pflan June 2018
• Where do you all buy your external columns heaters?

  Answered ✓ 23 views 3 comments 0 points Most recent by Pflan June 2018