2998 baseline noise at 520 nm - Lamp Energy Low warning - WKB85204
Article number: 85204
SYMPTOMS
Excessive noise in baseline at 520 nm.
ENVIRONMENT
- Mobile Phase A - 10% Formic Acid in H2O - Mobile Phase B-10%FA in 25%ACN 25%MeOH 50%H2O
- 2695
- 2998
CAUSE
Contaminated flow cell.
FIX or WORKAROUND
Clean cell by flushing the system with 25% MeOH, ACN, IPA, H2O with .1% FA. Flush the system for about two hours at a flow rate of .5ml/min, and then flush with 100% H2O for one hour.
ADDITIONAL INFORMATION
The FA at 10% absorbs light below 250 nm. This causes "Lamp Energy Low" warnings.
id85204, 2489, 2489B, 2489SFC, 2998, 2998B, 2998SFC, A-10PDA, A-10UV, A-30PDA, baseline ripple, eluent, isopropanol, methanol, UPAPDA, UPC2PDA, UPPDA, UPPDAARC, UPPDAARCB, UPPDA-E, UPPDA-L, UPPDALTC, UPPDATC, UPPPDA