Custom Quartz Cuvettes

Parameter	Typical Range
Optical path length	1, 2, 5, or 10 mm (standard); custom on request
Internal width / height	Matched to path length and target volume
Volume	0.5–4 mL, size-dependent
Window thickness	1–2 mm
Surface quality	60/40 to 40/20 Scratch-Dig
Flatness	λ/4 @ 633 nm
Parallelism	< 30 arcsec

Inquiry

Quartz cuvettes built around optical path length and window quality — the specs that actually determine measurement accuracy, not just internal volume.

Path length, window flatness, and parallelism define measurement accuracy together — a cuvette can be the right path length and still introduce error if the windows aren't parallel, since that changes the effective path length across the beam.

Optical Windows and Surface Requirements

Only the two windows in the optical path need the tightest flatness and parallelism spec — side walls not in the beam path can be functional-grade rather than optical-grade, which keeps cost down on larger or custom cuvettes. Surface quality (scratch-dig) matters most on the windows; scattered light from a scratched window shows up directly as measurement noise.

Quartz Cuvettes Factory Standard & Manufacturing Limit

Standard path lengths (1/2/5/10 mm) are the most repeatable without added lead time; custom path lengths are available but confirmed per order, since internal geometry has to be rebuilt around the new dimension, not just scaled. Parallelism is the figure most likely to need confirmation at the tightest end.

Quartz Cuvette Path Length and Cell Geometry

Internal chamber dimensions are set by path length and target sample volume together — a smaller sample volume at a fixed path length means a narrower internal width, which affects how much liquid is needed to fully cover the beam. Fabrication is precision plate cutting and polishing, then hot-welded or optically bonded into the cell body, with ports added where stirring or flow-through is needed. Before shipment we check path length, internal dimensions, window parallelism/surface, leak integrity, and overall form.

1 / 2 / 5 / 10 mmOptical Path Lengths

±0.01 mmPath Reference

10 × 10 mmCell Format

185 nmJGS1 UV Edge

FlowCell Option

JGS1 / JGS2Material Options

Optical Cell Definition

Path Length and Window Quality Are the Primary Cuvette Specifications

Controlled Feature	Reference Capability / Requirement
Path Length	1, 2, 5 or 10 mm reference series
Path Tolerance	±0.01 mm industry-reference quotation level
Cell Format	10 × 10 mm square, cylindrical or custom body
Material	JGS1-class UV fused silica from 185 nm, or JGS2-class quartz by wavelength
Window Surface	Polished optical windows with the clear area defined
Window Parallelism	Specified where beam deviation or path accuracy requires control
Closure	Open, capped, sealed or through-port configuration
Flow Geometry	Inlet, outlet, internal volume and orientation defined together

Cell Type Selection

Select the Optical Path Before the Closure and Ports

Cell Type	Reference Path / Form	Typical Measurement
Standard square	1 / 2 / 5 / 10 mm	UV-Vis absorbance
Cylindrical	Custom diameter and path	Instrument-specific holders
Fluorescence cell	Four-window or defined viewing faces	Fluorescence spectroscopy
Flow-through cell	Ports and chamber by drawing	Continuous or inline detection

Available Forms

Configurations Defined by the Process

Standard CuvetteSquare optical cell with controlled path length

Sealed CuvetteClosed sample chamber with agreed fill method

Flow CellInlet and outlet integrated around the optical path

Cylindrical CellRound body matched to an instrument holder

Applications

UV-Vis, Fluorescence and Flow Detection

UV-Vis SpectroscopyJGS1-class cells specified from 185 nm when required

FluorescenceWindow arrangement matched to excitation and collection geometry

Flow DetectionSmall internal chamber with defined ports and path length

Custom InstrumentsCell envelope and optical center matched to the holder

Need a cuvette matched to an instrument?Send wavelength range, path length, holder envelope, clear windows, closure or port layout and sample compatibility.

Open the Product Configurator

Engineering Data