50 mm Quartz Flow Cell: A Long Path with a Small Sample Space (MQQFC092)
Custom design guide · MQQFC092
MQQFC092 combines a nominal 50 mm optical path with a stated 40 µL capacity in a slender tubular layout. Its small bore and two side arms make beam alignment, tube support and hose clearance central to selecting the cell.
The situations and proposed changes below are planning examples, not completed customer projects.
Structure and use · Current specifications · Selection details · Proposed changes · Before ordering · Buy or enquire
Consider path length and sample space separately
For a homogeneous solution within Beer–Lambert conditions, a longer path increases absorbance at the same concentration and wavelength. A low-absorbance measurement may therefore lead to a long-path enquiry, even when the sample supply is small.
MQQFC092 puts that long-path requirement into a slender tube rather than a broad rectangular chamber. The trade-off is a more demanding alignment and support arrangement around the small bore. Its 40 µL nominal capacity does not include the complete circuit's filling and flushing demand, and detection limits remain specific to the method and instrument.
Current MQQFC092 configuration
Open engineering reference R01 and PDF
Source-based dimensions and configuration for discussion. Unconfirmed geometry and tolerances remain to be agreed; this is not a manufacturing-release drawing.
View full-size engineering reference · Download the complete English engineering reference PDF
Support the main tube and free the side arms from hose loads
The source gives a 3 mm OD / 1 mm ID for the main tube and for both side arms. Draw separate supports and hose restraints so that connecting or moving tubing does not use a narrow arm as a handle.
For a proposed installation, locate the end optics and main-tube supports first, then route the side-arm hoses without loading the arms. This separates an optical-alignment problem from a hose-routing problem. The 1 mm bore is a source dimension; the useful opening and instrument fit still need to be established for the setup.
Label axial length and projections separately
The source marks 52 mm along the main tube and 20 mm for a side-arm span. These are separate from the 50 mm optical path. Fittings and tubing bends add further installation space, so use labelled projections and coordinates when setting an enclosure limit.
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Keep the long path and redirect a side arm
If the optical route is suitable but a side arm meets a wall or another fitting, show the desired arm direction and its permitted reach from a defined datum.
Mark whether the main tube and end optics must stay in their current positions. If they do, show the permitted side-arm direction, fitting outline and removal route around those fixed points. This gives us a focused connection-layout request while keeping the target optical path explicit.
Checks to agree before ordering
- Optical alignment: Check the beam, end optics and holder against the intended sample path.
- Support: Check arm loading, hose restraint and removal clearance.
- Circuit: Agree filling, flushing, fluid, flow and pressure conditions before requesting test records.
Sample and cleaning conditions
Check sample and cleaning liquids against the complete cell, including its bonded seams and any wetted cap or connection. Supply chemical identity, concentration, temperature and contact time. Avoid hydrofluoric acid; strong alkalis, heat and prolonged soaking need specific review. Adhesive-bonded quartz does not provide blanket approval or rejection of organic solvents.
Order this configuration or discuss a change
View MQQFC092 specifications and current pricing. If you need a delivery date, ask about availability and preparation or production time before ordering.
For a modified version, send the brief below with a dimensioned drawing or labelled sketch. We review the proposed configuration and confirm feasibility, quantity, inspection scope, pricing and production time in the quotation.
Copy this custom-enquiry checklist
Reference SKU: MQQFC092
Keep: 50 mm target path; beam and installation direction: ____
Arm directions, reach, fitting outlines and support sketch: ____
Medium, total sample budget, flow/pressure and exchange/flush procedure: ____
Sample and cleaning liquids, concentrations, temperature and contact time: ____
Wavelength, critical tolerances and required inspection/documents: ____
Quantity, required date and destination: ____
Send your sketch and requirements. Mark the features to keep and the changes to assess.
Technical reference
Configuration reference: MQQFC092 product specifications. Specifications checked 26 October 2026. General principles guide selection; they do not establish measured performance of this cell.
For the absorption principle, see the IUPAC Gold Book: Beer–Lambert law.
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