Catalog Number - 58835-01-002

58835-01-002 ARE‑Applied Research Mobile Phase Inlet Filters are high‑efficiency solvent filtration devices designed for HPLC, UHPLC, and LC‑MS mobile phase delivery systems, providing both instrument protection and maximum solvent utilization.

These filters feature an advanced “Last Drop” flat profile design, allowing nearly complete use of the mobile phase in reservoir bottles—an important advantage for long runs, high‑throughput environments, and expensive solvents.

Constructed with a 2 µm stainless steel filter element and an inert PEEK / PTFE flow path, these filters deliver high throughput, minimal restriction, and excellent chemical compatibility.

✅ Explore larger quantity packaging options for lab standardization and cost efficiency

“Last Drop” Design – Maximum Solvent Recovery

• Wide 22 mm flat filter geometry

• Sits at the bottom of the bottle for maximum access

• Draws solvent down to near‑empty conditions

• Reduces waste and avoids premature run interruptions

✅ Ideal for overnight runs, long sequences, and high‑value solvents

✅ Improves lab efficiency and solvent utilization

2 µm Stainless Steel Element – Critical System Protection

• Filters particulates ≥ 2 µm

• Protects:

  • Pump seals and check valves

  • Injector systems

  • HPLC columns and detectors

• High surface area design supports:

  • High flow rates

  • Low backpressure contribution

  • Extended filter life

✅ Essential for maintaining instrument performance and longevity

PEEK / PTFE Flow Path – High Purity Performance

• Wetted components made from:

  • PEEK (polyether ether ketone)

  • PTFE (Teflon® equivalent)

• Provides:

  • Chemical inertness

  • Low extractables

  • Broad solvent compatibility

✅ Suitable for LC‑MS and high‑purity analytical workflows

Tripod Connector – Tool‑Free Installation

• All‑PEEK tripod tubing connector

• Accepts:

  • 1/16" OD tubing

  • 1/8" OD tubing

• Internal ID ~0.8 mm

• No ferrules or nuts required

• Easy push‑fit tubing connection

✅ Enables fast setup and reliable low‑pressure connections

Performance Advantages (Industry Context)

Compared to traditional inlet filters:

• Maximizes usable solvent volume

• Reduces risk of air entering pump systems

• Improves flow consistency near empty reservoirs

• Supports continuous, unattended operation

Modern chromatography best practices emphasize:

• Effective inlet filtration for system protection

• Low restriction for flow stability

• High surface area for longer service intervals

✅ These filters align with current HPLC system protection standards

System Compatibility & Use

Designed for use with:

• HPLC / UHPLC mobile phase systems

• LC‑MS solvent delivery setups

• Low‑pressure tubing configurations

• Standard mobile phase reservoir bottles

✅ Installs directly into mobile phase bottles for inline solvent filtration

Typical Applications

• HPLC mobile phase filtration

• LC‑MS solvent protection

• High‑throughput analytical laboratories

• Pharmaceutical and QA/QC workflows

• Long‑duration chromatography methods

• Integrated into original equipment manufacturer (OEM) product designs

Important Usage Notes

• Designed for low‑pressure systems only

• Ensure proper tubing fit for leak‑free operation

• Clean or replace filter as flow resistance increases

• Periodically inspect for buildup or clogging