Shifting retention time with ACQUITY UPLC solvent managers - WKB195835

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Article number: 195835

SYMPTOMS

Shifting retention times
Wide peak shape
Dynamic leak test failure

ENVIRONMENT

ACQUITY UPLC Binary Solvent Manager (BSM)
ACQUITY UPLC I-Class BSM
ACQUITY UPC² BSM
ACQUITY UPLC H-Class BSM
ACQUITY UPLC H-Class Quaternary Solvent Manager (QSM)

CAUSE

Faulty check valve

FIX or WORKAROUND

Replace the check valve on the failing pump head.

ADDITIONAL INFORMATION

id195835, A-30SDM, checkvalve, DLT, UPAQSM, UPBINARY, UPBSM+, UPC2BSM, UPC2CMA, UPC2CNVMGR, UPC2SMFL, UPIBSM, UPIBSM, UPIBSM+, UPIBSM+, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN+, UPPBSM, UPPQSM, UPQSM, UPQSM, UPQSM+, UPQSM+, UPQSMBIO, UPQSMBIO, UPQSMBIO+, UPSMFTN, UPSMFTN+, UPSMFTNB+, UPSMFTNBIO