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Spectrometers & Accessories  (2 Products)
We can elevate your medical practice by stocking spectrometers or accessories for your practice so that you can better engage with your patients. With the proper medical supplies, you can keep the work going and your co workers calm. If your medical practice has a question about other spectrometers and accessories - feel free to message us via live chat! Read More
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Stockwell Scientific Standard type Macro Cuvette, 4 ml, 1000/Case

Stockwell Scientific Standard type Macro Cuvette, 4 ml, 1000/Case

Macro cuvette
4-milliliter capacity
Made of polystyrene
$93.69 Carton
Item # 901-1602446
Stockwell Scientific Macro Cuvette, Standard Type, 4ml, 100/Pack
$11.49 Pack
Item # 901-1602447
SS,120518
Want to know more about Spectrometers & Accessories

Spectrometers and accessories for advanced analysis

Spectrometers are an essential part of lab supplies along with other scientific and experimental equipment. Spectrometers are sophisticated microscopy instruments that measure wavelengths of light in various sample substances, to determine their molecular, chemical, biological, or biochemical characteristics. The light wavelengths can be either ultraviolet (UV) or infrared (IR), or they can be light that’s visible to the naked eye. Scientists view the samples in accessories referred to as spectrophotometric cuvettes, since they hold samples for both spectrometers and spectrophotometers, which are instruments for measuring the effect of light's intensity on samples.

Units of measure for spectrometers and accessories

Like microscopes, spectrometers require looking at the most minute levels of material. The instruments examine wavelengths of light measured in billionths of a meter, or nanometers (nm). Cuvettes must have a specific “window” structure that lets the spectrometer view the wavelengths at this microscopic level, so the cuvettes are structured as small tubes with circular or square cross-sections, sealed at one end, to provide an appropriate viewing platform that lets the various lighting transmit, absorb, or reflect through the sample in the tubes.

Spectrophotometric cuvettes of different materials

The most advanced material for cuvettes consists of quartz, silica, or sapphire. However, each is quite expensive, and even sterilizing them in between experimentation doesn’t guarantee the elimination of cross-sample contamination. Today’s spectrometer research relies on plastic cuvettes, made from virgin resins, that provide clear optical qualities and are disposable after analysis. Plastic cuvettes come in polycyclical olefin material for UV-transparent analysis, in polymethyl methacrylate (PMMA, or acrylic) for both visible and UV light analysis, and in polystyrene for visible light analysis.

Sizes

Different brands of cuvettes use different terms for describing the size of the samples that they can hold. Basic cuvette sample sizes are as follows:

  • Ultra-micro = 50 micro-liters
  • Micro = 500 micro-liters to 1.0 milliliter
  • Semi-micro = 1.0/1.5 milliliters to 3.0 milliliters
  • Macro (standard) = 2.5 to 4.5 milliliters

Exacting standards

Like most health care supplies, spectrophotometric cuvettes have to be manufactured according to strict tolerances. Manufacturers are careful to produce them from scratch-resistant materials and to package them according to mold cavity match to minimize any variance from one cuvette to another.

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