Long Path Length Synthetic Quartz Cuvette 17.5mL (LAQ-108)

Premium 50 mm Fused Silica Cells for High-Sensitivity UV-Vis Spectroscopy

The LARK LAQ-108 is a specialized, extended-path macro spectrophotometer cell engineered for highly sensitive quantitative analysis of ultra-dilute or low-concentration liquid samples. Precision-crafted from premium synthetic fused quartz by LARK (France), this cell delivers an extended 50 mm optical path length. By multiplying the optical path length fivefold compared to standard 10 mm cells, it drastically increases absorbance signals for trace analytes—fully satisfying Beer-Lambert’s law requirements without needing chemical pre-concentration steps.

Key Features

• Full-Spectrum Ultraviolet Clarity: Delivers unmatched light transmission (>80% at 200 nm) across an expansive spectral range from 190 nm to 2,500 nm. It eliminates material baseline interference in critical UV tracking applications.
• Extended 50 mm Optical Path: Drastically enhances detection limits. It is the ideal configuration for trace chemical profiling, environmental water testing, wastewater monitoring, and volatile organic compound tracking.
• Two-Window Optical Design: Features 2 precision-polished windows optimized for straight-through absorbance and transmittance spectrophotometers. The remaining walls are frosted to ensure a secure grip and prevent skin oils from fouling the clear windows.
• No-Adhesive Thermal Fusion: Assembled utilizing advanced thermal bonding technology instead of chemical glues, adhesives, or resins. This guarantees permanent structural integrity and eliminates any risk of adhesive leaching when exposed to harsh chemicals.
• Extreme Chemical & Thermal Resilience: Fully inert to concentrated acids, strong bases, and organic solvents (such as chloroform, toluene, or DMSO). The low thermal expansion coefficient of fused quartz makes these cells fully autoclavable and safe for temperature-controlled peltier systems.