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Pressure Difference

Question asked by hafizrafique on Apr 3, 2019
Latest reply on Apr 8, 2019 by hafizrafique

Asslam o Alaikum (may peace and mercy be on all of you)

If I use isocratic elution on quarternay pump agilent 1260 infinity series, the pressure is different  from that pressure when I use binary pump to elute same composition as i did in isocratic elution, the question is that why pressure is different while composition of the mobile phase is same?