This document is a maintenance manual for a laptop of a certain brand and model. It mainly introduces the disassembly and maintenance methods of the laptop.
The ZORBAX Reliance Cartridge Guard-Column Series is designed to provide cost-effective protection for high-performance analytical columns. These cartridges are packed with 5 µm ZORBAX packing of identical chemistry to the analytical columns and feature PPS polymeric tubing that is more solvent-resistant than PEEK. They are available in 2.1 mm ID and 4.6 mm ID sizes with press-fit porous frits and are engineered to seal at high pressures without requiring gaskets.
The document provides assembly instructions using the Reliance Guard-Column Hardware Kit, which includes a low-volume holder, end fitting, and column connector. It also outlines operational guidelines, such as maintaining a mobile-phase pH between 2 and 8 (3 to 8.5 for Diol), operating temperatures up to 80°C, and specific flushing procedures to ensure optimum column performance and longevity.
| Packing size | 5 µm |
|---|---|
| Tubing material | PPS polymeric |
| Maximum operating temperature | 80°C |
| Mobile-phase pH range | 2 to 8 |
| Void volume (4.6 mm ID) | less than 150 pL |
| Void volume (2.1 mm ID) | less than 30 pL |
The recommended pH range is 2 to 8, or 3 to 8.5 for Diol phases.
A minimum of 3 mL of methanol should be flushed through the assembly.
Replace the cartridge when system pressure increases by 10% from normal or after every 100 to 200 injections.