Quartz cuvettes are essential for accurate UV-Vis spectroscopy, offering high transparency from deep UV to near-infrared. The following selections prioritize optical clarity, stable pathlengths, chemical resistance, and compatibility with standard spectrophotometers. Each option provides precise readings for nucleic acids, proteins, and other solutions in research, clinical, and industrial labs. Below is a curated set of five quartz cuvettes that balance performance, durability, and value for a variety of实验 workflows.
| Product | Brand | Pathlength | Volume | Spectral Range |
|---|---|---|---|---|
| Quartz Cuvettes 4-Pack, 10 mm | Lifestyle Visions | 10 mm | 3.5 mL | 190–2500 nm |
| LAB4US UV Quartz Cuvettes (Set of 2) | LAB4US | 10 mm | 3.5 mL | 190–2500 nm |
| UV Quartz Cuvettes (Set of 2) | BEXCO | 10 mm | 3.5 mL | 190–2500 nm |
| LAB4US Quartz Fluorescence Cuvette (Set of 2) | LAB4US | 10 mm | 3.5 mL | 190–2500 nm |
| LAB4US UV Quartz 5mm Cuvette (2 pcs) | LAB4US | 5 mm | 1.7 mL | 190–2500 nm |
These options cover both standard pathlength cells and specialized sealed variants, ensuring availability across typical UV-Vis workflows. When choosing, consider pathlength, volume, chemical resistance, and whether sealing or a specific window configuration best fits your instrument and sample types.
Quartz Cuvettes 4-Pack: 10 mm Path for UV-Vis-NIR
Brand: Lifestyle Visions. Features include precision optical-grade quartz crafted from high-purity JGS1, ensuring accurate UV-Vis-NIR measurements from 190 to 2500 nm. The set includes 4 cuvettes with two polished and two frosted sides, a 10 mm optical path, and a 3.5 mL capacity. The quartz provides high transmission and minimal signal loss, supporting reliable quantification for DNA, RNA, and protein analyses in diverse lab settings. Compatible with most spectrophotometers, these cuvettes aim to deliver reproducible results with low background interference across standard workflows.
LAB4US UV Quartz Cuvettes (Set of 2)
Brand: LAB4US. This set features two quartz cuvettes with optical Windows of 2, a broad spectral range of 190–2500 nm, a 10 mm pathlength, and a 3.5 mL volume. Included a non-sealing PTFE cover for convenient handling in routine measurements. The material is engineered for resistance to most acids, bases, and organic solvents, with robust performance at elevated temperatures (up to 300°C with the PTFE cover). Ideal for standard UV-Vis investigations and general spectroscopy, with stable baseline readings across the visible to near-IR range.
UV Quartz Cuvettes (Set of 2) Non-Sealing PTFE Cover
Brand: BEXCO. This pack includes two cuvettes, each with optical Windows 2, a spectral range of 190–2500 nm, and a 10 mm pathlength with a 3.5 mL volume. The cover is a non-sealing PTFE cap, and the cuvettes feature a compact 45×12.5×12.5 mm footprint. They are designed for easy handling and compatibility with standard UV-Vis spectrophotometers, delivering consistent measurements and straightforward integration into routine analyses.
LAB4US Quartz Cuvette With 4 Windows (Set of 2)
Brand: LAB4US. Designed for fluorescence and UV-Vis measurements, these cuvettes come in a 2-piece set with four optical Windows and a 10 mm pathlength. Each cuvette holds 3.5 mL and includes a sealed top to support longer scanning sessions. The material retains high chemical resistance and stability under a variety of solvents, while maintaining clear optical performance from 190 to 2500 nm. Suitable for sensitive fluorescence-based quantifications alongside standard absorbance analyses.
LAB4US UV Quartz Cuvette LAQ-104 Set
Brand: BEXCO. This item features a pair of identical UV quartz cuvettes (LAQ-104) with dimensions 12.5 mm by 12.5 mm by 45 mm. It provides a 3.5 mL volume and a 10 mm pathlength, covering 190–2500 nm. The dual-window design ensures reliable measurements in UV and visible ranges, while the standard footprint ensures compatibility with most spectrophotometers used in academic and industrial settings.
LAB4US 50 mm Quartz Cuvette Set (Two Pieces)
Brand: LAB4US. These 50 mm pathlength quartz cuvettes deliver a large optical path for precise concentration measurements, especially in UV spectroscopy applications requiring higher absorbance sensitivity. They offer a 17.5 mL volume and cover 190–2500 nm. With a broad spectral range and robust construction, these cuvettes are suitable for specialized analyses where longer light travel paths enhance measurement accuracy.
Buying Guide: Key Purchase Considerations
- Pathlength and volume: Standard 10 mm pathlength cuvettes with 3.5 mL volume fit most routine UV-Vis tasks. For high-absorbance samples or limited instrument sensitivity, longer pathlengths (e.g., 50 mm) or larger volumes may be advantageous.
- Spectral range: Most options cover 190–2500 nm, spanning deep UV to near-infrared. Confirm your instrument’s detector range and the solvent’s absorption characteristics to avoid spectral gaps.
- Material and clarity: Optical-grade quartz ensures high transmission and low autofluorescence. Check that the quartz is JGS1 or equivalent high-purity material for reliable baseline stability.
- Windows configuration: Some cuvettes include multiple windows or frosted vs. polished faces. Polished faces minimize scattering; frosted surfaces can reduce reflection in certain setups. Opt for a configuration that suits your measurement mode and sample type.
- Sealing and caps: Sealed tops help prevent solvent evaporation and improve scan stability during extended measurements. Non-sealing PTFE covers are common for quick tests, but sealing options are preferable for volatile samples or long runs.
- Chemical resistance: Quartz cuvettes should resist acids, bases, and organic solvents typical in nucleic acid and protein assays. Review any solvent-specific compatibility notes when using harsh reagents.
- Instrument compatibility: Ensure the cuvette footprint and pathlength align with your spectrophotometer’s optics and sample chamber. Most 10 mm cuvettes are widely compatible with standard UV-Vis instruments.
- Durability and cost: Sets with multiple cuvettes offer better value per unit. Look for robust PTFE stoppers and secure caps to minimize leaks and evaporation during experiments.
- Cleaning and maintenance: Quartz cuvettes require careful cleaning to prevent scratches and residues. Use recommended solvents and avoid abrasive cleaners to preserve optical quality.
- Application fit: For fluorescence measurements, consider cuvettes designed or labeled for fluorescence compatibility, as they may feature designs that reduce background signals.
In selecting quartz cuvettes for UV-Vis spectroscopy, balance the need for optical clarity with sample compatibility and instrument compatibility. The options above provide a spectrum of standard and specialized cuvettes suitable for routine absorbance measurements, fluorescence-related work, and high-precision quantitative analyses in American labs.