Square Spectrophotometer Cuvettes, 4.5 mL, 10 mm Path Length — 100/Case
The Globe Scientific Square Spectrophotometer Cuvettes deliver a fixed 10 mm path length and a 4.5 mL working volume for reliable absorbance readings across UV-Vis applications. Designed for routine optical density measurements, nucleic acid and protein quantification, and enzyme kinetics, these square-format cuvettes seat consistently in standard spectrophotometer holders for repeatable data.
Technical Specifications
| Product Type | Square Spectrophotometer Cuvette |
| Volume/Size | 4.5 mL, 10 mm path length |
| Material | Optical-grade plastic |
| Closure/Cap | Open-top, no cap |
| Graduation | None |
| Sterility | Non-sterile |
| Pack Size | 100 cuvettes per case |
Available Options
| Option | SKU | Price (per case) |
| UV Grade Methacrylate — Case of 500 | 111157 | $179.20 |
| PS — Case of 500 | 111137 | $112.50 |
Applications
- UV-Vis absorbance and optical density (OD600) bacterial growth monitoring
- Nucleic acid quantification (A260/A280 purity checks)
- Protein assays including Bradford, BCA, and Lowry methods
- Enzyme kinetics and reaction-rate measurements
- Colorimetric endpoint assays in clinical and research workflows
- Routine concentration determination via standard curves
Chemical Resistance
| Reagent Class | Compatibility |
| Aqueous buffers | Excellent |
| Dilute acids | Good |
| Dilute bases | Good |
| Alcohols | Limited — brief contact only |
| Acetonitrile | Not recommended |
| Aromatic solvents | Not recommended |
| Chlorinated solvents | Not recommended |
Quality & Procurement
Purchase through labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Every case carries a lot number to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes.
Frequently Asked Questions
What is the path length of these cuvettes?
Each cuvette provides a fixed 10 mm path length, the standard geometry for most benchtop UV-Vis spectrophotometers and absorbance calculations.
What spectral range are these cuvettes suitable for?
The optical-grade plastic supports visible-range measurements and many near-UV applications. For deep-UV work below the polymer cutoff, verify the wavelength against your assay requirements.
Are these cuvettes reusable or disposable?
They are intended primarily as economical single-use disposables, which eliminates carryover and cleaning between samples. Limited reuse with aqueous buffers is possible if rinsed promptly.
Are these cuvettes compatible with organic solvents?
They perform well with aqueous buffers and dilute acids or bases. Acetonitrile, aromatic, and chlorinated solvents are not recommended due to potential attack on the polymer.