BioLogic DuoFlow 40 System

The BioLogic Maximizer expands the capabilities of the BioLogic DuoFlow systems. It enables buffer blending, doubled flow rates, and twice the valve capacity of the standard BioLogic DuoFlow system.

This pH monitor enables real-time monitoring of pH conditions (pH 1–14) during a sample run. It consists of high-precision calomel electrodes which are compatible with buffers such as Tris that are incompatible with Ag/AgCl electrodes. It is a biocompatible PEEK flow cell with a swept volume of approx 80 µL that is capable of withstanding flow rates to 80 mL/min. The monitor is included with all BioLogic Maximizer™ and Pathfinder® systems and is available as an option on the BioLogic DuoFlow™ and BioLogic DuoFlow QuadTec™ systems, where it connects via the Signal Import Module (SIM).

This optional module allows import of an analog signal (up to 2.5V) from a pH electrode or other external detector (such as a UV, refractive index, or fluorescence monitor). The BioLogic DuoFlow software accommodates two SIMs and can display four data signals simultaneously.

High- and low-pressure valves are available. High-pressure sample injection (AVR7-3) and stream select (AVR9-8) valves use the patented MBB (make-before-break) design that prevents pressure spikes when the valve rotates from one port to another, eliminating baseline interference. The feature is beneficial when using fragile low-pressure columns or flow-sensitive detectors and prevents pump shutdown due to transient pressure conditions.

EZLogic integration software adds quantitative functions to basic BioLogic DuoFlow software with the same easy-to-use graphical interface. The software provides tools necessary to quantitate samples, integrate and overlay chromatograms, determine retention times, view results, and generate customized reports. Graphical capabilities include split-screen chromatogram views, zooming, multiple parameter annotation, and color selection.