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Flat-Window Quartz Flow Through Cuvette Transparent Sample Cells for Material Science Studies
Flat-Window Quartz Flow Through Cuvette Transparent Sample Cells for Spectroscopic Instrumentation

Flow-Integrated Flat-Window Quartz Flow Through Cuvette Transparent Sample Cells for Chromatography Detection-TOQUARTZ®

TOQUARTZ® Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell is designed for continuous liquid analysis in UV-Vis and fluorescence applications. Its flat-window construction ensures stable light transmission without distortion, making it suitable for laboratories and analytical instrument manufacturers. Built from high-purity fused quartz, the cell provides broad spectral coverage from 200 nm to 2500 nm and resists harsh chemicals and high temperatures. This product supports micro-volume to milliliter handling, helping users achieve reliable results in pharmaceutical testing, biochemical assays, food science, and environmental monitoring.
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Features of Flat-Window Quartz Flow Through Cuvette
Transparent Sample Cells

TOQUARTZ® Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell combines high-purity quartz material with precise optical performance to support continuous spectroscopic analysis across demanding industries. Its design addresses the needs of pharmaceutical, biochemical, food science, and environmental applications where stability, durability, and clarity are critical.

High-Purity Quartz Composition

  • Manufactured with ≥ 99.98% SiO₂ fused quartz for stable spectral transmission.
  • Provides reliable optical results from 200 nm to 2500 nm wavelength range.
  • Withstands thermal exposure up to 1100 °C in laboratory conditions.

Optical Performance and Light Stability

  • Flat-window structure eliminates curvature distortion for consistent alignment.
  • Ensures <0.3% deviation in UV-Vis light transmittance for accurate readings.
  • Supports micro-volume to milliliter sample flow for diverse analysis needs.

Chemical and Mechanical Resistance

  • Resistant to acids, alkalis, and fluoride gases used in analytical workflows.
  • Fracture modulus ≥ 350 MPa provides durability during repeated usage.
  • Maintains low contamination risk with smooth internal flow channels.
Flat-Window Quartz Flow Through Cuvette Transparent Sample Cells for Spectroscopic Instrumentation
TOQUARTZ® Flat-Window Quartz Flow Through Cuvette Transparent Sample Cells
  • SiO2 Purity ≥99.98%, up to 99.995%
  • Chemical Resistance to Harsh Reagents
  • Customization Services Available

Technical Specifications & Dimensions of Flat-Window Quartz Flow Through Cuvette Transparent Sample Cells

The Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell is defined by precise material characteristics that ensure consistent performance in analytical workflows. This section provides its core technical specifications, covering physical, chemical, optical, and mechanical properties, alongside the dimension tables relevant to laboratory and industrial users.

Technical Specifications

PropertySpecification
Physical PropertiesDensity 2.2 g/cm^3;
Thermal stability up to 1100°C;
Thermal conductivity 1.38W/m·K;
Thermal expansion 0.55×10^-6/K;
Softening point ~1665°C
Chemical PropertiesSiO2 content ≥ 99.98%;
Acid resistance to HCl/H2SO4;
Alkali resistance to NaOH/KOH;
Stable to HF gas;
Low contamination risk
Optical PropertiesTransmission 200–2500nm;
Transmittance ≥ 90% in UV-Vis;
No absorption peaks in UV range;
Refractive index 1.46 (at 589nm);
Optical homogeneity stable
Mechanical PropertiesFracture modulus ≥ 350MPa;
Hardness ~570Knoop;
Tensile strength ~50MPa;
Flexural strength ≥ 110MPa;
Elastic modulus ~72GPa
Electrical PropertiesHigh dielectric strength 25–40kV/mm;
Volume resistivity ≥ 10^16Ω·cm;
Low dielectric constant ~3.8;
Loss tangent ≤ 0.0002;
Stable insulation at high temperatures

Size Chart

120μl Flat-Window Quartz Flow Through Cuvette
ModelDescriptionPath
Length		VolumeOutline Dimension
AT-BSM-8034120μl Flat-Window Quartz Flow Through Cuvette0.5mm120μl12.5x45x1.8mm
150μl Flat-Window Quartz Flow Through Cuvette
ModelDescriptionPath
Length		Wave LengthOutline Dimension
AT-BSM-80445mm Path Length Rhombus Black-Wall Quartz Flow-Through Cell5mm200-2500nm10x5x15mm
Note: We offer custom specifications to meet your specific requirements. Contact our engineering team for consultation.
Sent Customized Requirements

TOQUARTZ® Addressing Analytical Challenges with Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell

Ink Formulation Absorbance Testing with Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell

In printing and coating industries, maintaining consistent ink absorbance is critical to achieving uniform color and reliable product quality. Conventional cuvettes with curved walls often distort light paths, leading to baseline instability and inaccurate measurements. Residue buildup inside the cell further complicates cleaning and slows down formulation testing cycles. These issues result in wasted time, costly re-adjustments, and compromised production efficiency.

Key Advantages

  • Flat-window baseline stability
    — Baseline noise ≤0.002 AU across 200–800 nm at 1.0 mL/min reduces color drift during in-line checks.
  • Fast rinse, low carryover
    — Three 5 mL IPA rinses leave residual absorbance <0.2% at 600 nm, cutting changeover time by ~40%.
  • Micro-volume color decision
    — 120 µL chamber enables ΔE* decisions with ≈88% less ink than 1 mL cells.
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TOQUARTZ® solution

A packaging printer running 12-color flexo reported unstable baselines and long rinses using curved cells. After switching to the TOQUARTZ Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell, baseline noise dropped from 0.006 AU to 0.002 AU and average tone changeover fell from 5 min to 3 min. Ink use per test decreased from ~1.0 mL to 0.12 mL, saving ~0.9 mL per run. Over ~250 checks/day this saved ~225 mL/day and reduced weekly rework by 28%, improving line uptime.

Battery Electrolyte Stability Analysis with Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell

Electrochemical researchers require precise UV-Vis tracking of battery electrolytes to evaluate long-term stability and performance. Standard glass cells frequently corrode when exposed to strong acids, alkalis, or organic solvents, producing spectral noise and unreliable data. Structural weakness under repeated testing cycles can also cause breakage, increasing downtime in laboratory operations. Without stable optical paths and durable materials, it becomes difficult to generate reproducible electrolyte performance profiles.

Key Advantages

  • HF-exposure optical integrity
    — After 24 h in 1 M LiPF₆ (EC/DEC, 40 °C, 50 ppm HF), transmittance change <0.5% at 300–600 nm.
  • Low drift in long runs
    — Closed-loop circulation for 8 h shows baseline drift ≤0.002 AU at 280–500 nm.
  • Pressure-cycle endurance
    — Withstands 10,000 pulses at 0.3 MPa with optical flatness maintained within λ/10 at 546 nm.
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TOQUARTZ® solution

A battery R&D lab saw spectral noise and cracked glass cells during electrolyte aging studies. Using the TOQUARTZ Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell, 30-day sequences showed no cracking and <0.5% transmittance shift after repeated HF-bearing exposures. Replicate RSD improved from 2.8% to 0.9% and baseline noise dropped ~60%. Maintenance-related downtime fell by ~8 h/week, enabling denser test scheduling.

Cosmetic Emulsion Quality Control with Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell

Cosmetic laboratories analyze emulsions to monitor transparency, stability, and fluorescence signals that indicate formulation consistency. Traditional cuvettes often suffer from sample carryover, leaving residues that contaminate subsequent measurements and lower reproducibility. Stray light caused by non-flat surfaces can interfere with fluorescence detection, masking subtle quality differences in sensitive formulations. These limitations increase the risk of inconsistent results, delaying product release and raising quality assurance costs.

Key Advantages

  • Stray-light suppression
    — Flat windows cut fluorescence background by ~35% at 365/450 nm vs curved cells, improving low-level dye SNR.
  • Residue-controlled flow geometry
    — Single 10 mL water–ethanol flush yields carryover <0.3% for O/W emulsions (1% oil) at 600 nm.
  • Micro-volume repeatability
    — 120 µL chamber achieves ≤1.2% RSD across 10 replicates for 0–1 AU turbidity checks.
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TOQUARTZ® solution

A cosmetics QC lab struggled with carryover and masked fluorescence differences during batch release. After adopting the TOQUARTZ Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell, background dropped by 32–38% and carryover fell below 0.3% with a single flush. Replicate RSD improved from 2.9% to 1.1%, stabilizing pass/fail thresholds. Batch release time shortened by ~24 h and QC re-runs decreased by ~40%.

TOQUARTZ® Customization Services for Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell

The Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell can be tailored to match specific analytical workflows. Customization focuses on its flat-window optical precision and flow-through design, ensuring compatibility with diverse research and industrial requirements.

Optical Window Options

Customization allows flexibility in optical interfaces to optimize measurement performance.

  • Window Shape
    — Flat geometry improves stability in beam alignment.
  • Surface Finish
    — Polished surfaces minimize stray light during detection.
  • Transmission Quality
    — Uniform clarity ensures reliable UV-Vis measurement results.

Flow Channel Design

Internal flow geometry can be adapted to achieve consistent sample handling.

  • Channel Geometry
    — Controlled flow reduces turbulence in liquid streams.
  • Volume Handling
    — Micro to larger flow supports varied analytical setups.
  • Dead Volume
    — Smooth surfaces minimize carryover between liquid samples.

Material Adaptations

Quartz composition can be selected for chemical resistance and analytical stability.

  • Quartz Grade
    — Purity level tailored for demanding spectroscopic analysis.
  • Chemical Stability
    — Inert surfaces withstand acids, alkalis, and solvents.
  • Thermal Endurance
    — Stable performance maintained under high heat exposure.

Product Usage Guideline

The Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell delivers reliable results when handled with proper preparation, operation, cleaning, and storage practices. This guide highlights key steps that laboratory engineers and instrument operators should follow to ensure measurement accuracy and extend product lifespan.

Sample Preparation

  • Filter liquids to remove particles that could scatter light.
  • Degas solutions before use to minimize bubble formation.
  • Use calibrated syringes or pumps for accurate micro-volume loading.

Operating Instructions

  • Position the flat window directly in line with the instrument’s beam path.
  • Maintain steady flow rates to reduce signal drift or instability.
  • Avoid abrupt pressure changes that may stress the quartz cell.

Cleaning Procedure

  • Rinse immediately with deionized water after each measurement cycle.
  • Apply ethanol or acetone for removing oily or sticky residues.
  • Dry the cuvette with filtered air to prevent water spots or streaks.

Storage and Safety Tips

  • Store the cuvette in a dust-free case away from direct sunlight.
  • Keep away from hydrofluoric acid or abrasive cleaning agents.
  • Handle with care to prevent chips or cracks during laboratory use.

Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell
Secure Reliable Results Today

TOQUARTZ® engineers support your projects with distortion-free optical paths and custom flow designs.
Contact us now to discuss how this solution meets your analytical challenges.
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Why Partner with TOQUARTZ

Direct Factory Advantage

As a direct manufacturer, we can cut out the numerous intermediate links.

Engineering Expertise

Technical team guides clients from material selection to design optimization, translating specs into deliverables.

Flexible Manufacturing

Handling standard & custom orders via small-batch expertise and prototyping rigor to meet urgent deadlines.

Quality
Assurance

Pre-shipment 3-step validation:
1. dimensional accuracy,
2. material purity ,
3. performance thresholds

Global Supply Chain

Reliable global logistics to industrial hubs (DE/US/JP/KR priority) with trackable milestones.

Releted Products

As a specialized manufacturer with direct factory capabilities, TOQUARTZ provides both standard and custom quartz solutions with engineering support throughout the specification and implementation process.

FAQ

Q: Why is the flat-window design important in the Flat-Window Quartz Flow Through Cuvette Transparent Sample Cell?

A: The flat-window design prevents curvature distortion and ensures parallel light paths during measurement. This improves baseline stability in UV-Vis and fluorescence testing. Laboratories gain reproducible results even in long-term continuous flow applications.

A: The smooth internal flow channels are engineered to reduce dead volume and residue. This design lowers the risk of cross-contamination between sequential samples. It supports reliable results in pharmaceutical and biochemical workflows.

A: It provides broad spectral transmission from 200 nm to 2500 nm. This range covers UV, visible, and near-infrared regions for diverse analytical methods. Researchers can use one cuvette type across multiple instruments.

A: Yes, the flat transparent walls minimize stray light compared to curved designs. This enhances sensitivity in fluorescence spectroscopy where background noise is critical. Users obtain clearer signals for low-concentration analytes.

A: It is widely applied in pharmaceutical analysis, biochemical research, food science, and environmental monitoring. The transparent flat-window design supports accurate results across these fields. Clients benefit from both versatility and reliability.

Contact our engineering team for technical consultation and pricing. We’ll help you select the optimal specifications for your application requirements.

ABOUT TOQUARTZ

TOQUARTZ has pioneered precision customized quartz glass products engineered for lab, industrial, and optical excellence.

We supply the best quartz products without MOQ constraints, paired with rapid prototyping.

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Whatsapp: +86-19311583352
Email: info@toquartz.com

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