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Cells for Absorption Spectroscopy

Being the global market leader, Hellma Analytics develops and distributes cells and optical components for laboratory equipment in modern analysis technology.
Manufacturers and the industry sectors chemical and pharmaceutical industries, biotechnology, food industry, health care and environment all over the world are being attended by 11 subsidiaries and more than 50 representations. Hellma Analytics stands for highest quality and reliability, latest technology and maximum customer focus.

Starna cuvettes also meet the highest quality standards and are versatile. At Analytics-Shop we offer you alternatives to the most common Hellma cuvettes of equal quality from Starna.

The following table gives an overview of the used materials and the respective suitable wavelength range.

Material Materialcode Wavelength Range
Optical Glass OG 360 nm - 2500 nm
Optical Special Glass BF 330 nm - 3500 nm
Borofloat® OS 320 nm - 2500 nm
HOQ 310H UV 260 nm - 2500 nm
Quartzglass Suprasil® QS 200 nm - 2500 nm
Quartzglass Suprasil® QX 200 nm - 2500 nm

 

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Cells for Absorption Spectroscopy

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  1. Hellma

    Macro Cell 100-QS, 10mm with lid

    $84.41
    sku: HL100-10-40
  2. Hellma

    Macro Cell 100-QS, 1mm with lid

    $107.41
    sku: HL100-1-40
  3. Hellma

    Macro Cell 100-QS, 2mm with lid

    $107.41
    sku: HL100-2-40
  4. Hellma

    Macro Cell 100-OS, 10mm with lid

    $48.30
    sku: HL100-10-20
  5. Hellma

    Macro Cell 100-QX, 10mm with lid

    $110.63
    sku: HL100-10-46
  6. Hellma

    Macro Cell 100-OS, 1mm with lid

    $62.91
    sku: HL100-1-20
  7. Hellma

    Macro Cell 100-QS, 20mm with lid

    $115.00
    sku: HL100-20-40
  8. Hellma

    Macro Cell 100-QS, 40mm with lid

    $158.70
    sku: HL100-40-40
  9. Hellma

    Macro Cell 100-OS, 5mm with lid

    $53.94
    sku: HL100-5-20
  10. Hellma

    Macro Cell 100-QS, 5mm with lid

    $105.11
    sku: HL100-5-40
  11. Hellma

    Semi-Micro Cell 104-QS, 10mm with lid

    $107.53
    sku: HL104-10-40
  12. Hellma

    Zylinder- Cell 692.091-OG, optical glass

    $39.91
    sku: HL692-091-12
  13. Hellma

    Micro Cell 104.002-QS, 10mm with lid

    $117.30
    sku: HL104-002-10-40
  14. Hellma

    Macro Cell 100-QS, 50mm with lid

    $171.35
    sku: HL100-50-40
  15. Hellma

    Micro Cell 104.002B-OS 10 mm black with lid

    $84.30
    sku: HL104002B-10-20
  16. Hellma

    Micro Cell 104.002B-QS 10mm black with lid

    $194.35
    sku: HL104002B-10-40
  17. Hellma

    Semi-Micro Cell 104B-QS, 10mm black with lid

    $186.30
    sku: HL104-B-10-40
  18. Hellma

    Ultra-Micro cuvette 105.210

    $525.55
    sku: HL1052101085-40
  19. Hellma

    Micro Cell 108.002-QS LP 10 mm light path

    $146.05
    sku: HL108-002-10-40
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Production Informations for Cells from Hellma

Ultrasonic Machinig:

Many cell typed, especially flow-trough cells, require borings and cavities with highly complex shapes. With ultrasonic machining, which resembles the spark erosion procedure used in metall working, Hellma possesses a technology that allows to produce high-precision borings and cavities of 0,5 nm to 60 nm in the brittle glass material. The tools required for manufacturing borings of almost any imaginable cross-sectional shape are made in Hellma´s own machine-too, department.

Fusion Technology:

the process of direct fusion, which was developed by Hellma, and is almost always used nowadays ideally fulfills these requirements. However, it also presupposes that the surfaces to be fused together are polished and possess a flatness tolerance of less than 1 µm. Since no adhesives whatsoever are employed for fusing the glass parts, the seams display the same high resistance against chemicals and increased temperatures as the solid glass itself. Sinter glass fusing is only used in the few exceptional cases where direct fusion is impossible for technical manufacturing reasons.

Antireflection Coating:

When radiation passes through the cell, part of it is reflected by the exterior surfaces. The transmission is reduced by this reflected portion by approximately 8%. Vacuum evaporation of thin layers of a suitable material can reduce these reflections, thereby giving a higher transmission for the cell.
The standard is a multilayer antireflection coating that reduces reflection over a broad spectral range. Over a spectral range of between 440 nm and 650 nm the reduced reflectance is at most 0,4%. This coating is highly adhesive and resistant to both abrasion and climatic influences.

Mirror Coating:

For some purposes (e.g. fluorescence measurements) mirror coated cells are used. Both the rear window to the incident light and the left adjacent window are mirror-coated on the outside. The standard mirror coating consists of a layer of vacuum-evaporated aluminium that has a degree of reflection of mor than 80% over a spectral range between 250 nm and 2500 nm. This coating is covered with a protective layer which is extremly hard and durable. Additionally, the mirror coated window are protected against external scratches by a layer of black lacquer.
On request we can also supply metal coatings with different reflective properties and with the coated surfaces in other positions.