Low sensitivity after a PM - WKB116099

SYMPTOMS

• Low sensitivity after a PM
• Setup solution looks typical
• Only some of the customer's analytes are affected
• Correctly linked calibration and resolution settings

ENVIRONMENT

• MassLynx
• Quattro Premier
• Quattro Premier XE
• Quattro LC
• Quattro LCZ
• Quattro micro API
• Quattro Ultima
• 3100 Mass Detector
• RADIAN ASAP Direct Mass Detector
• ACQUITY SQD system
• SQ Detector
• ACQUITY TQD system
• TQ Detector
• SQ Detector 2
• Xevo TQ MS
• Xevo TQD
• Xevo TQ-GC
• Xevo TQ-S
• Xevo TQ-S cronos
• Xevo TQ-S micro
• Xevo TQ-XS
• ZQ 2000
• ZQ 4000
• ZMD

CAUSE

During the PM, the customer's method was written over.

FIX or WORKAROUND

Open pre- and post-PM experimental records. Ensure that the parameters for the customer's method (desolvation temperature, gas flow, and so on) match. 

ADDITIONAL INFORMATION