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, 2690, 2690D, 2690DUPGD, 2690UP, 2695, 2695D, 2695DE, 2695DEB, 2695DUP, 2695E, 2695EB, 2695INERT, 2695UP, 2998, 2998B, 2998SFC, A-10PDA, A-10SSM, A-10UV, A-30PDA, baseline ripple, eluent, isopropanol, methanol, UPAPDA, UPARPPDA, UPC2PDA, UPPDA, UPPDAARC, UPPDAARCB, UPPDA-E, UPPDA-L, UPPDALTC, UPPDATC, UPPPDA