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LARK® Type A1, Macro Spectrophotometer Cuvettes, UV Quartz, Rounded Bottom with PTFE Cover
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spectral range: 190–2500 nm
Specifications:
| Application | Spectrophotometry |
| Material | Quartz |
| Storage Temperature | Ambient |
| Product Type | sample Holder |
| Product Brand | LARK |
| Product Grade | Analytical grade |
The LARK® Type A1 Macro Spectrophotometer Cuvettes are high-precision cuvettes engineered for ultraviolet to near-infrared absorbance measurements across the 190–2500 nm spectral range. Made from high-purity synthetic quartz, these cuvettes deliver excellent UV transparency and are ideal for biochemical assays, pharmaceutical analysis, and environmental applications.
Each cuvette is equipped with a rounded bottom to aid in mixing and cleaning, two optically polished side windows for accurate light path transmission, and a PTFE stopper for sample protection. Designed for macro-volume handling, the cuvettes are reusable and compatible with most UV-Vis spectrophotometers.
Key Features
- Material: High-transmission UV Quartz (QS), 190–2500 nm range
- Polished Windows: Two optically clear sides for accurate absorbance
- Rounded Bottom: Facilitates complete sample drainage and mixing
- PTFE Cover: Chemically resistant, minimizes evaporation
- Reusable Design: High chemical and thermal durability
- Accurate Optical Path: Ensures repeatable results with minimal variation
- Supplied as Pairs: Each set includes two matched cuvettes
Available Volumes, Dimensions & Path Lengths – UV Quartz (QS)
| Volume (mL) | Path Length (PL, mm) | External Dimensions (L × W × H, mm) | Part Number |
|---|---|---|---|
| 0.35 | 1 | 3.5 × 12.5 × 45 | #1L8A-1 |
| 0.7 | 2 | 4.5 × 12.5 × 45 | #1L8A-2 |
| 1.7 | 5 | 7.5 × 12.5 × 45 | #1L8A-3 |
| 3.5 | 10 | 12.5 × 12.5 × 45 | #1L8A-4 |
| 7.0 | 20 | 22.5 × 12.5 × 45 | #1L8A-5 |
| 10.5 | 30 | 32.5 × 12.5 × 45 | #1L8A-6 |
| 14.0 | 40 | 42.5 × 12.5 × 45 | #1L8A-7 |
| 17.5 | 50 | 52.5 × 12.5 × 45 | #1L8A-8 |
| 35.0 | 100 | 102.5 × 12.5 × 45 | #1L8A-9 |
Note: Path length (PL) refers to the optical path distance between the cuvette’s polished windows and directly affects absorbance measurements per the Beer-Lambert Law.
Applications
- DNA/RNA quantification at 260 nm
- Protein concentration assays at 280 nm
- Enzyme kinetics and time-course monitoring
- Pharmaceutical and compound screening
- Environmental absorbance testing (e.g., water analysis)
- General UV-Vis-NIR laboratory applications
The LARK® Type A1 UV Quartz Macro Cuvettes combine high-purity materials, precision manufacturing, and thoughtful ergonomic features to provide a dependable and reusable solution for laboratories requiring accurate absorbance data in the UV to NIR range. With options spanning from 0.35 mL to 35.0 mL and 1 mm to 100 mm path lengths, these cuvettes are suitable for a broad spectrum of applications in life sciences, analytical chemistry, and materials research.
- Path Length: 1 mm (0.35 mL) 2 mm (0.70 mL) 5 mm (1.70 mL) 10 mm (3.5 mL) 20 mm (7.00 mL) 30 mm (10.50 mL) 40 mm (14.00 mL) 50 mm (17.50 mL) 100 mm (35.00 mL)