Q614 Black Wall Avoid Light Flow Cell Biochemical Analyzer Quartz Glass Cuvette For Biochemical Analyzer

Brief

1. Advantages of the cuvette :

• 1).High temperature resistance
• 2).High durability material
• 3).Corrosion resistance.

2.The difference of quartz material and glass material:

• 1) Glass Cuvettes: Made of optical glass, these cuvettes offer a certain level of chemical resistance and are relatively inexpensive . However, they can only be used for spectroscopic analysis in the visible light range (380–780 nm) , as glass absorbs ultraviolet light, making them unsuitable for the UV range (190–380 nm).
  
• 2)Quartz Cuvettes**:  Fabricated from quartz glass, these cuvettes provide excellent optical performance. They can be used not only in the visible light range but also in the ultraviolet range, offering high transmittance under UV light and meeting the needs of a wider range of spectroscopic applications. However, they are more expensive than glass cuvettes.

Details

A cuvette, also known as an absorption cell or sample cell, is a critical optical device in spectroscopic analysis . It is primarily used to hold the solution to be tested, providing a transmission path for light to measure information such as the concentration and structure of substances in the solution. Cuvettes are widely used in quantitative and qualitative analysis across various fields , including chemistry, biology, medicine , and environmental science. For example , they are used in pharmaceutical analysis to determine the content of drug components and in environmental monitoring to detect pollutant concentrations.

Q614 Cuvette：

• 1)Size:12.512.5 35mm
• 2) Volume: 18ul/ 32ul
• 3)Light Wave: 200nm- 2500nm
• 4)Use: biochemical analyzer     

We are supplying standard cuvette with lid, standard cuvette with stopper , Micro Cuvettes with black wall, Micro Cuvette with black walls and stopper, Light-resistant mobile cuvette, Cylinder type cuvette with stopper, standard fluorescence cuvettes with stopper , Micro cuvette with white walls and lid, etc

Material properties: very low coefficient of thermal expansion , resistance to high temperature, high chemical purity, high corrosion resistance, extensive optical transmission from ultra-violet to infra-red, excellent electrical insulation qualities.

Parameter

Applicatiion:

Quartz cuvette (sample cell, absorption cell) is used to hold the reference solution and sample solution. It is used in spectral analysis equipment, such as spectrophotometer, particle size analyzer, hemoglobin analyzer, etc., for quantitative and qualitative analysis of substances.

Selection of Types and Usage Considerations**

• ‌Wavelength Compatibility‌: Quartz cuvettes must be used in the UV range (190–400 nm). For the visible light range (400-900 nm), either glass or quartz can be used, with glass typically chosen to reduce costs. Specific infrared cuvettes are required for the IR range.‌‌
• 1‌‌5 Path Length Selection‌: Use a long path length (2–3 cm) for lighter-colored solutions and a short path length (0.5–1 cm) for darker-colored solutions to ensure the absorbance falls within the optimal range of 0.1–0.7.
  
• ‌Operational Guidelines‌: Hold the cuvette by the frosted sides to avoid touching the transparent optical surfaces. Fill to about 2/3 of its height. Clean immediately after use, using specific solvents (e.g., an ether-ethanol mixture) for stubborn stains.

Usage Precautions:

• - Cleaning: Rinse thoroughly with distilled water before and after use. If necessary, a suitable detergent may be used for cleaning. Avoid scrubbing with abrasive materials to prevent scratching the optical surfaces, which could compromise performance. After cleaning, invert the cuvette to air-dry or use nitrogen gas to blow it dry.
• - Handling: Always hold the cuvette by its frosted sides to avoid touching the optical surfaces. Contact with fingers can leave fingerprints or oils, which may interfere with light transmission and affect measurement results.
• - Matching: Use matched cuvettes within the same set of experiments. Slight variations in parameters such as thickness and transmittance may exist between individual cuvettes. Using matched pairs helps minimize measurement errors.
• - Filling: When filling with solution, fill to approximately 3/4 of the cuvette's capacity to prevent overflow. Additionally, avoid introducing air bubbles into the solution, as bubbles can scatter light and lead to measurement inaccuracies.
• - Do not allow the optical surfaces to come into contact with hard or dirty objects . When filling with solution, fill it to about 2/3 of the cuvette's height. If any liquid remains on the optical surfaces, first gently absorb it with filter paper, and then wipe carefully using lens tissue or silk.