Catalog Number - 58846-E-07-002

58846-E-07-002 ARE‑Applied Research Mobile Phase Inlet Filters are economy, biocompatible, all‑PTFE filtration devices designed for HPLC, UHPLC, and LC‑MS mobile phase delivery systems, providing high throughput, excellent chemical compatibility, and maximum solvent utilization at a reduced cost.

These filters utilize a “Last Drop” flat bottom‑draw design, allowing nearly complete withdrawal of mobile phase from reservoir bottles—minimizing solvent waste and helping maintain uninterrupted system performance during long analytical runs.

Constructed entirely from PTFE, these filters offer low extractables, broad solvent compatibility, and suitability for sensitive analytical workflows, while enabling flexible system configurations.

✅ View bulk packaging options for larger‑scale purchasing and lab standardization

“Last Drop” Design – Maximum Solvent Utilization

• 22 mm flat filter geometry

• Positions at the lowest point in the reservoir bottle

• Draws solvent to near‑empty conditions

• Minimizes waste and prevents pump starvation

✅ Ideal for long runs, high‑volume solvent usage, and cost control

✅ Improves workflow efficiency and solvent utilization

5 µm PTFE Element – High Capacity Filtration

• Removes particles ≥ 5 µm

• Protects:

  • Pump seals and check valves

  • Injection systems

  • Columns and detectors

• PTFE media provides:

  • High flow capacity

  • Low restriction

  • Chemical inertness

✅ Ideal for high‑flow systems or pre‑filtered solvent applications

All‑PTFE Construction – Maximum Chemical Compatibility

• Fully PTFE wetted surfaces

• No mixed‑material flow path

• Highly resistant to aggressive solvents

✅ Suitable for LC‑MS, pharmaceutical, and biocompatible workflows

Visual Inspection Advantage – White Filter Element

• White PTFE surface enhances visibility of trapped particles

• Enables quick contamination assessment

• Helps determine optimal replacement timing

✅ Supports proactive maintenance and consistent system performance

Tubing Compatibility – Flexible Integration

• Designed for 1/8" low‑pressure tubing systems

• Requires user‑configured tubing attachment

• Compatible with standard HPLC solvent delivery setups

✅ Ideal for custom or simplified tubing configurations

Economy Design – Cost‑Effective Performance

• Simplified design without integrated connectors

• Lower cost compared to advanced inlet filter assemblies

• Maintains:

  • High filtration efficiency

  • Maximum solvent recovery

  • Reliable system protection

✅ Ideal for budget‑conscious laboratories and high‑volume workflows

Performance Advantages – Efficient Filtration Solution

Compared to finer pore filters:

• Lower flow restriction

• Reduced clogging risk in high‑flow applications

• Stable solvent delivery under load

• Extended service intervals

✅ Supports efficient and consistent chromatography performance

System Compatibility & Use

Designed for use with:

• HPLC / UHPLC mobile phase systems

• LC‑MS solvent delivery setups

• 1/8" low‑pressure tubing configurations

• Standard mobile phase reservoir bottles

✅ Installs directly into mobile phase bottles for inline filtration

Typical Applications

• HPLC mobile phase filtration (economy setups)

• LC‑MS solvent protection

• High‑volume solvent workflows

• Routine analytical and QC laboratories

• Long‑duration and unattended runs

• Integrated into original equipment manufacturer (OEM) product designs

Important Usage Notes

• Designed for low‑pressure systems only

• Requires compatible 1/8" tubing setup

• Ensure secure tubing connection during installation

• Inspect filter regularly and replace as needed