Describes the working principle and performance of two gradient pumps in the Agilent 1260 Infinity LC series, which are the quaternary low pressure mixing pump and the binary high pressure mixing pump.
This document provides a technical overview comparing the Agilent 1260 Infinity Quaternary Pump and the Agilent 1260 Infinity Binary Pump. Both pumps are part of the Agilent 1260 Infinity LC family and are designed for analytical scale liquid chromatography gradient runs. The text details their specific application ranges, noting that the Quaternary pump is optimized for 5% to 95% organic gradients, while the Binary pump excels from 0% to 100% organic, particularly for low or high organic percentages and when using TFA as a modifier.
| Quaternary Pump Flow Rate Range | 0.3 up to 10 mL/min |
|---|---|
| Binary Pump Flow Rate Range | 0.05 to 5 mL/min |
| Quaternary Pump Optimum Gradient Range | 5% to 95% organic |
| Binary Pump Optimum Gradient Range | 0% to 100% organic |
| Quaternary Pump Flow Precision | < 0.07% RSD |
| Binary Pump Flow Precision | < 0.07% RSD |
| Quaternary Pump Composition Precision | < 0.2% RSD |
| Binary Pump Composition Precision | < 0.15% RSD |
The optimum gradient range is between 5% to 95% organic.
It is the best choice for gradients from 0% to 10%, 90% to 100%, and when using TFA as a modifier.
The practical flow rate range is from 0.05 to 5 mL/min.