Purpose

Precision Meets Purity With Full Quartz Construction High Purity Threaded Flow Cells—For Sterile, Accurate, and Compliant Pharmaceutical Analysis

When your lab demands more than just accuracy—when it needs sterility, chemical resilience, and uncompromising reliability—Starna’s High-Purity Threaded Quartz Flow Cells deliver. Engineered specifically for pharmaceutical dissolution testing and high-performance UV-Vis spectrophotometry, these premium flow cells are designed for environments where cleanliness, reproducibility, and traceability are non-negotiable.

Description and Discussion

Built Entirely from Quartz. Engineered for the Demands of Pharma.
Starna’s Threaded Quartz Flow Cells are crafted from a single material—high-purity synthetic quartz—right down to the threaded fittings. Unlike composite or PTFE-based flow cells, these are fused entirely from precision quartz components using high-temperature fusion bonding. The result? A monolithic structure with exceptional chemical resistance, thermal stability, and long-term durability, even under repeated sterilisation or autoclaving.

Why It Matters:
In high-throughput, highly regulated pharmaceutical environments, hybrid materials can compromise sterility or introduce inconsistencies. Starna’s full-quartz construction supports contamination-free workflows, withstands aggressive solvents and elevated temperatures, and maintains optical clarity where it matters most.

A New Benchmark in Flowcell Precision:
Each unit is engineered with sub-micron path length accuracy—verified within ±0.2 µm using interference spectrometry. That level of precision ensures consistent absorbance readings, essential for dissolution testing, real-time monitoring, and IVIVC studies.

Traceability and Compliance Baked In:
Every threaded quartz flow cell is pressure-tested to withstand over 5 bar, laser-engraved with a unique serial number, and manufactured to meet USP, Ph. Eur., and JP standards. This level of traceability supports regulatory compliance and eliminates uncertainty from your data pipeline.

Designed for Integration—Ready for Automation:
Compatible with USP Apparatus 4 and leading automated dissolution systems, Starna’s threaded flow cells slot into your workflow effortlessly, supporting seamless integration across instruments, software, and validation protocols.

Feature	Specification / Detail
Material	100% High-Purity Synthetic Quartz (SiO₂), including screw-thread fittings
Construction	Precision-fused, no adhesives or composite parts
Sterilisation	Fully autoclavable and cleanable
Path Length Accuracy	Verified to within ±0.2 µm via interference spectrometry
Pressure Resistance	Tested to exceed 5 bar
Traceability	Laser-engraved with unique serial number
Compatibility	USP Apparatus 4 and all major UV-Vis systems
Use Cases	Dissolution testing, UV-Vis absorbance in aggressive or sterile media
Regulatory Compliance	Conforms to USP, Ph. Eur., JP standards

Catalogue Number

	Catalogue Number
Full Quartz Construction High-Purity Threaded Flow Cells	TBC

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Purpose

Precision You Can Rely On—Flow Cells Built for Compliance and Confidence
In USP Apparatus 4 dissolution testing, precision isn’t optional—it’s everything. Starna’s Dissolution Flow Cells deliver the clarity, path length accuracy, and rugged performance needed for real-time UV-Vis monitoring in high-stakes pharmaceutical environments.

Description and Discussion

Engineered for Reliability. Proven in Regulated Labs.
These are more than cuvettes—they’re purpose-built analytical tools designed for continuous, contamination-free performance. Each cell is manufactured through direct heat fusion, eliminating adhesives and potential leachable compounds. The result is a monolithic quartz structure with superior optical clarity, chemical inertness, and thermal stability.

Every unit is pressure-tested beyond 5 bar and laser-engraved with a unique serial number and verified path length—so you get rock-solid performance and full traceability, batch after batch. Thanks to sub-micron path length accuracy (±0.2 µm) verified by interference spectrometry, you can trust your results in both routine QC and advanced R&D.

Designed for laminar flow and reduced bubble retention, these flow cells are optimized for high-throughput workflows and automated real-time drug release analysis. With a wide range of geometries—including long, wide, medium, and sub-micro apertures—they support virtually any dissolution protocol with minimal sample loss and maximum reproducibility.

Whether you’re building IVIVC models or releasing product to market, Starna Dissolution Flow Cells keep your data flowing—cleanly, accurately, and compliantly.

Feature	Specification / Detail
Construction	Direct heat fusion (no adhesives, no PTFE)
Pressure Testing	Verified to exceed 5 bar
Traceability	Laser-engraved path length and serial number
Path Length Accuracy	±0.2 microns (interference spectrometry verified)
Flow Profile	Continuous, laminar; engineered to reduce bubbles
Connection Types	M6, Luer Lock, Gripper fittings
Configuration Options	Long Aperture (584.4) Wide/Square Aperture (583.65 / .65.65) Medium (583.2.8, 583.4) Sub-Micro Volume (583.3.3)
Pharmacopeial Compliance	USP, Ph. Eur., JP
System Compatibility	Designed for full integration with automated high-throughput systems
Applications	Real-time drug release, IVIVC studies, R&D, QC, and automated workflows

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