Contamination peaks at 200 and 270 eluting from LC with Xevo G2-XS - WKB114233
Article number: 114233
SYMPTOMS
- Peaks at 200 and 270 eluting off column at 6 minutes and 7 minutes; can be seen in background continuously until the LC returns to initial conditions
- Running H20, MeOH with formic acid
- New solvents and water do not address the issue
ENVIRONMENT
- ACQUITY UPLC H-Class
- ACQUITY UPLC
- Xevo G2-XS
- Xevo TQ MS
CAUSE
Contaminated formic acid
FIX or WORKAROUND
Use unopened 1-mL glass ampules of formic acid.
ADDITIONAL INFORMATION
id114233, MALDIG2SI, methanol, SYNAPTXS, SYNG2HD, SYNG2HDMAL, SYNG2MS, SYNG2MSMAL, SYNG2SHD, SYNG2SHDML, SYNG2SIHD, SYNG2SIMS, SYNG2SMS, SYNG2SMSML, UPBINARY, UPIBSM, UPIBSM+, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN+, UPQSM, UPQSM+, UPQSMBIO, UPQSMBIO+, UPSMFTN, UPSMFTN+, UPSMFTNB+, UPSMFTNBIO, XEVOG2QTOF, XEVOG2SQTF, XEVOG2STOF, XEVOG2TOF, XEVOG2XSQT, XEVOG2XSTF, XEVOTQ, XEVOTQA, XEVOTQD, XEVOTQDIVD, XEVOTQIVD, XEVOTQS, XEVOTQSCRO, XEVOTQSIVD, XEVOTQSMIC, XEVOTQXS, XEVTQSMIVD, XEVTQXSIVD