High-efficiency capillary columns (referred to as high-efficiency columns for short) are capillary columns with an inner diameter of less than 0.25 mm. Compared with conventional capillary columns with inner diameters of 0.25-0.32 mm, high-efficiency columns have higher theoretical plates (N) and higher peak capacities (µmol/m), which can achieve higher separation efficiency and lower analysis time. Agilent J&W high-efficiency columns use high-efficiency filling technology to ensure separation efficiency while maintaining good retention and reproducibility. Agilent J&W high-efficiency columns are suitable for applications in all fields of gas chromatography, including gas chromatography-mass spectrometry (GC-MS) and gas chromatography-mass spectrometry-time-of-flight (GC-MS-FTMS).
This document provides a technical overview of Agilent J&W High-Efficiency Capillary Columns, which are designed to enhance productivity in fast Gas Chromatography (GC) applications. These 0.18-mm internal diameter columns offer higher theoretical plate counts per meter compared to standard-bore columns, enabling faster analysis times without compromising resolution.
| Internal Diameter (0.18 mm column) | 0.18 mm |
|---|---|
| Theoretical Plates per Meter (0.18 mm) | 6,660 plates/m |
| Compatible Carrier Gases | Helium or Hydrogen |
| Maximum Operating Pressure | 100 psi |
They offer improved productivity and faster sample analysis without loss of resolution due to smaller column id and shorter length.
Yes, they are fully compatible with standard-pressure (100 psi or less) gas chromatograph instruments.
The columns operate with either helium or hydrogen carrier gas.