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- Reflection-Minimized Triangular Quartz Fluorescence...
Reflection-Minimized Triangular Quartz Fluorescence Cuvettes for Lab Fluorometry -TOQUARTZ®
Features of Triangular Quartz Fluorescence Cuvettes
TOQUARTZ® triangular quartz cuvettes are manufactured using high-grade optical quartz material, delivering exceptional performance for demanding spectroscopy applications. Each cuvette is precision-crafted to meet rigorous laboratory standards.
Propriétés optiques
Made from high-purity quartz (≥99.98%, up to 99.995% SiO₂) with excellent transmission across 200-2500nm wavelength range, ideal for UV-Vis and fluorescence spectroscopy applications.
Résistance chimique
Optimized triangular geometry provides consistent optical path and minimizes reflections. Precision-ground and polished surfaces ensure accurate and reproducible spectroscopic measurements.
Résistance chimique
Exceptional resistance to acids, bases, and salt solutions. Remains stable when exposed to fluorine gas and various corrosive chemicals commonly used in laboratory environments.

- SiO2 Pureté ≥99.98%, jusqu'à 99.995%
- Résistance chimique aux réactifs agressifs
- Services de personnalisation disponibles
Technical Specifications & Dimensions of Triangular Quartz
Cuvettes de fluorescence
Spécifications techniques
Propriété | Spécifications |
1. Propriétés physiques | |
Matériau | High-purity quartz (≥99.98%, up to 99.995% SiO₂) |
Finition de la surface | Precision polished, bubble-free, scratch-free |
Résistance mécanique | Breaking modulus >350MPa |
Coefficient de dilatation thermique | 5.5×10-7/℃ |
2. Propriétés chimiques | |
Composition chimique | SiO₂ ≥99.98% (up to 99.995%) |
Résistance à l'acide | Excellent resistance to all acids except HF |
Résistance aux alcalins | Stable in most alkali solutions at room temperature |
Compatibilité avec les solvants | Compatible with organic solvents and aqueous solutions |
3. Propriétés optiques | |
Gamme de transmission | 190nm – 4500nm |
Coupure UV | ~170nm |
Indice de réfraction | 1.55 at 500nm, 1.46 at 1000nm |
Tableau des tailles

Modèle | Description | Trajectoire Longueur | Volume | Dimension de l'ébauche |
AT-BSM-6029 | 1750μl Triangular Quartz Fluorescence Cuvette | / | 1750μl | 13x13x18.4x45mm |

Modèle | Description | Trajectoire Longueur | Volume | Dimension de l'ébauche |
AT-BSM-6030 | Triangular Quartz Fluorescence Cuvette Side Length 40mm | / | / | 40x40x40x45mm |
TOQUARTZ® Solutions for Precision Spectroscopy Challenges with Triangular Quartz Fluorescence Cuvettes
Triangular Quartz Fluorescence Cuvette in Protein Conformation Studies
Principaux avantages
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Reduced scattering at 90° emission angle
Triangular geometry minimizes excitation beam reflection, improving signal clarity by 28% in tryptophan fluorescence. -
Improved detection at nanomolar protein levels
Enables accurate fluorescence detection at concentrations as low as 1.8 nM with <5% signal deviation. -
Enhanced spectral resolution for folding transitions
Supports detection of <2 nm emission peak shifts during protein unfolding events.
Solution TOQUARTZ
A biotech lab analyzing monoclonal antibody folding reported inconsistent emission shifts using rectangular cuvettes, with 18% signal overlap due to internal reflections. After switching to TOQUARTZ triangular cuvettes, they achieved consistent detection of 1.5 nm spectral shifts at 2 nM protein concentration. This improved their folding transition mapping accuracy by 41%, enabling earlier-stage screening of unstable candidates.
Triangular Quartz Fluorescence Cuvette in Quantum Dot Characterization
Principaux avantages
-
Eliminates excitation beam leakage in emission path
Triangular design blocks direct excitation light at 90°, reducing spectral contamination by 35%. -
Improves quantum yield measurement reproducibility
Achieves ±1.8% variation in absolute quantum yield tests across 5 batches. -
Supports high-energy UV excitation without signal loss
Maintains >92% transmission at 250 nm for CdSe/ZnS quantum dot excitation.
Solution TOQUARTZ
A nanotech firm producing QDs for medical imaging faced 12–15% variability in quantum yield readings due to excitation light bleed-through. Using TOQUARTZ triangular cuvettes, they reduced this to ±1.8%, enabling consistent batch certification. This allowed them to meet ISO 13485 QC standards and reduce rejected lots by 63% over two quarters.
Triangular Quartz Fluorescence Cuvette in Forensic Toxicology
Principaux avantages
-
Suppresses matrix fluorescence from biological samples
Triangular geometry reduces background signal by 42% in blood and hair extracts. -
Enables detection of sub-ppb drug metabolites
Supports detection limits down to 0.08 ppb for benzodiazepines in forensic assays. -
Reduces required sample volume for trace analysis
Accurate results achieved with as little as 150 µL of biological specimen.
Solution TOQUARTZ
A national forensic lab struggled with 9% false positives in hair drug screening due to matrix interference using standard cuvettes. After adopting TOQUARTZ triangular cuvettes, background fluorescence dropped by 42%, and false positives fell to 1.1%. This improved evidentiary reliability and enabled the lab to pass a federal audit with zero analytical discrepancies.
TOQUARTZ® Customization Options for Triangular Quartz
Cuvettes de fluorescence
Dimensional Adaptation for Instrument Compatibility
Tailored dimensions ensure seamless integration with proprietary spectroscopy systems.
-
Options de longueur de chemin
Adjusted to match optical path requirements precisely. -
Contrôle de l'épaisseur des murs
Designed to support specific light transmission needs. -
Cuvette Height Matching
Compatible with automated sample holders and readers.
Structural Geometry Modification
Triangular geometry can be adjusted to meet unique optical path designs.
-
Angle Customization
Supports non-standard excitation-emission configurations. -
Base Shape Alteration
Modified for non-horizontal mounting or beam alignment. -
Edge Reinforcement
For enhanced durability in automated systems.
Processus de personnalisation
We understand the challenges of specifying custom Triangular Quartz Fluorescence Cuvette designs.
-
Clarté des exigences
Clients often lack technical drawings or CAD files. -
Design Translation
We convert sketches or concepts into manufacturable specs. -
Application Matching
We align cuvette specs with real-world measurement needs. -
Tolerance Discussion
We help define achievable tolerances for optical accuracy. -
Iterative Feedback
Clients receive visual confirmations before final production.
Conseils d'utilisation et d'entretien
Handling & Measurement
- Handle cuvettes by the frosted or non-optical surfaces only to prevent fingerprints on optical windows.
- Ensure correct orientation in the instrument with the triangular face perpendicular to the excitation beam.
- Fill to the recommended volume (typically 2-3ml) to ensure proper beam positioning through the sample.
- Allow temperature equilibration for heat-sensitive applications to prevent thermal gradients.
Procédure de nettoyage
- Rinse immediately after use with appropriate solvent (often deionized water or ethanol).
- For persistent residues, soak in 10% HNO₃ solution (avoid HF which damages quartz).
- Rinse thoroughly with ultrapure water after cleaning with any chemical solution.
- Dry with filtered air or nitrogen; avoid paper towels that can scratch optical surfaces.
Recommandations en matière de stockage
- Store clean, dry cuvettes in original protective cases or dedicated dust-free containers.
- Maintain storage environment at constant temperature and humidity to prevent condensation.
- Avoid storage near corrosive chemicals or volatile substances that could deposit on optical surfaces.
- Consider desiccated storage for long-term preservation of optical quality.
Conseils d'entretien
- Periodically inspect for scratches, chips, or chemical etching under proper lighting.
- Verify optical performance with standard reference materials if measurement drift is observed.
- Replace cuvettes if any optical surface damage is detected to prevent measurement errors.
- Keep record of cuvette usage and cleaning cycles for quality assurance purposes.
Need Engineering Support for
Your Triangular Quartz Fluorescence Cuvette Requirements?
Pourquoi s'associer à TOQUARTZ ?
Avantage de l'usine directe
En tant que fabricant direct, nous pouvons supprimer les nombreux liens intermédiaires.
Expertise en ingénierie
L'équipe technique guide les clients depuis la sélection des matériaux jusqu'à l'optimisation de la conception, en traduisant les spécifications en produits livrables.
Fabrication flexible
Traiter les commandes standard et personnalisées grâce à une expertise en matière de petites séries et à une rigueur de prototypage afin de respecter les délais urgents.
Qualité
Assurance
Validation en 3 étapes avant expédition :
1. la précision des dimensions,
2. pureté du matériau ,
3. les seuils de performance
Chaîne d'approvisionnement mondiale
Logistique mondiale fiable vers les centres industriels (DE/US/JP/KR en priorité) avec des étapes traçables.
Produits réimprégnés
En tant que fabricant spécialisé disposant de capacités d'usinage directes, TOQUARTZ fournit des solutions en quartz standard et personnalisées avec une assistance technique tout au long du processus de spécification et de mise en œuvre.
FAQ
Q: How does the triangular shape benefit fluorescence detection compared to rectangular cuvettes?
A: The triangular geometry minimizes stray light and reduces excitation beam reflection into the detector. This improves signal-to-noise ratio, especially in low-concentration fluorescence assays. It also enables precise 90° excitation-emission configurations. This is critical for accurate quantum yield and anisotropy measurements.
Q: How does the Triangular Quartz Fluorescence Cuvette perform in high-sensitivity fluorescence assays?
A: Its geometry reduces internal scattering and enhances emission collection efficiency. This makes it ideal for detecting low-abundance analytes such as proteins or metabolites. The four-sided transparency allows flexible detector positioning. Combined with high-purity quartz, it ensures minimal background fluorescence.
Q: Are there any limitations when using the Triangular Quartz Fluorescence Cuvette in automated fluorescence systems?
A: The unique shape may require custom holders or adapters in some automated readers. However, we offer dimension-matched designs for most commercial systems. The screw cap and flow ports are compatible with robotic pipetting and fluid handling. Contact us for integration support.
Q: Can the Triangular Quartz Fluorescence Cuvette be used in oxygen-sensitive fluorescence assays?
A: Yes, the screw cap and optional sealing features allow inert gas purging. This is essential for assays involving oxygen-sensitive fluorophores or enzymatic reactions. The sealed design maintains an anaerobic environment during measurement. It ensures reproducibility in redox-sensitive fluorescence studies.
Q: Can the Triangular Quartz Fluorescence Cuvette be used in flow-through fluorescence systems?
A: Yes, the cuvette can be customized with inlet and outlet ports for continuous flow applications. This is ideal for kinetic fluorescence assays or real-time monitoring of reactions. The triangular geometry ensures minimal dead volume and consistent flow path. It supports integration with peristaltic or syringe pumps.
Contactez notre équipe d'ingénieurs pour une consultation technique et un devis. Nous vous aiderons à sélectionner les spécifications optimales pour votre application.