Is the Auto-Blend Plus Technology available in the H & I class with same performance ?

Orbi
Orbi
in Instrumentation and Mass Spectrometry
Is H- class Blend 9 solvent and I class limited to 4 only

Answers

  • lizh
    lizh
    A binary pump can blend 2 solvents, using flow rate to vary proportion and deliver a given percentage of A and B, at a constant flow rate. A quaternary pump can do the same for 2, 3 or 4 solvent proportions.
    Also Waters quaternary pumps support an additional functionality: Autoblend+ is available with four solvents and is only available on a quaternary pump, it's available in all quaternary based ACQUITY Premier, ACQUITY H-Class and ACQUITY Arc Systems. It's allows users to create and store buffer systems so you can create a specific pH on demand, independent of user variability, and to control salt strength and organic concentration to optimize the separation. AB+ uses software which combines knowledge of the delivery volume of the pump stroke to create a given pH for a calibrated buffer system. 
    Straightforward solvent blending is supported with two and up to four solvents for a quaternary based pump, where A can be varied with up to 6 solvents: A1 - A6 using an optional 6 position solvent selection valve and mixed with B, B &C or B, C & D based upon flow composition. (described as a choice of 9 solvents). For binary pumps you can blend up to two solvents only. For Waters' binary pumps each has a two position solvent select valve A1 or A2 and B1 or B2. (A choice of 4). Binary pumps do not support AutoBlend Plus. Hope this helps define the two functionalities.
    https://www.waters.com/waters/en_US/Auto•Blend-Plus/nav.htm?cid=134623262&locale=en_US.

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