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Starna Spectrophotometer Cells Spectrophotometer cells are used for holding your samples to be measured for absorbance or transmission in all common spectrophotometers.
There is an accepted international standard for the size, shape and materials for the construction of these cells. Starna spectrophotometer cells comply with these standards so that our cells can be used with most spectrophotometers made anywhere in the world.

We make a large selection of cells so that you can select the best design of cell for your sample type, size and wavelength range.

Validate your instruments with
Starna UV/Vis and Fluoresence Certified Reference Sets Use these reference sets to easily validate your UV/Vis and fluoresence spectrophotometers. Each set is supplied with a certificate of analysis and NIST Traceability from our ISO 17025 and UKAS accrediated reference laboratory.

Standard Quartz Cuvettes

Standard rectangular cells or Macro cells, Type 1, are the most common cells used in analytical chemistry. The exterior dimensions allow the cells to be used with virtually every spectrophotometer and photometer instrument currently in use. These cells have an exterior height of 45mm, two clear windows and an open top. The walls of the cell and the bottom are smooth on the inside. On the outside, the light path windows are clear while the adjacent windows and the bottom are frosted or grey. Typically, windows are 1.25mm thick and each cell in this range is supplied with a PTFE cover.

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SKU:
1-Q-1

Semi-Micro Self-Masking Black-Wall Cuvettes

The purpose of Semi-Micro Type 9 cells is to reduce the sample volume necessary to make a measurement. The volume of a Semi-Micro cell is approximately 40% of an equivalent path length standard rectangular cell. 9B cells have non transmitting self masking black walls which improve sensitivity by eliminating stray light from measurements. The interior sample compartment width of Semi-Micro 
cells is reduced to 4mm, therefore it is essential to determine that the light beam from the instrument passes centrally through the sample compartment. 

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SKU:
9B-SOG-5

Certified Reference Materials

To make your verification task easier, we have assembled our reference materials into sets which allow you to meet specific verification requirements. In addition, you can save money by purchasing a group of references

in a set instead of purchasing several references individually. We have sets which will allow you to meet the qualifications of the European Pharmacopoeia, the United States Pharmacopoeia and one set that will satisfy the requirements of both the EP and USP.

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SKU:
RM-0660HLKCTX

Neutral Density Filter Set

The set of Neutral Density Filters has three neutral density filters and a blank. The filters are mounted in anodized aluminum holders which are the size of a standard cuvette. The set contains:Full Detail

SKU:
RM-1N2N3N

Micro Cells 18B Self Masking Black Walls in Glass & Quartz

Micro cells, Type 18, with a 2mm internal width are for use with sample volumes smaller than the standard rectangular or SemiMicro cells. The nominal working volume of this range represents only 20% of the standard rectangular cells Type 1 with the same path length.Full Detail

SKU:
18B-SOG-5

Micro Cells Short and Ultra-Micro Cells

Type 17 Micro cells are similar to Type 18 Micro cells except that the external height is only 25mm. Because of their reduced height, it is essential that the correct micro cell holder is used for the instrument, otherwise it will be difficult to remove the cells from the cell holder. Both black wall self masking cells and clear wall cells are available in this range. Each cell has an open top and is supplied with a PTFE cover.

The configuration of the small sample compartment in the Type 19 Ultra-Micro cell range optimizes the alignment of the sample for maximum sensitivity in the spectrophotometer. The sample is easily inserted into and retrieved from the cell by careful use of a pipette or syringe.

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SKU:
17-Q-5

UV Stray Light Reference NIST Traceable

The UV Stray Light Reference, NIST Traceable is made of materials with sharp cutoffs in transmission at specified wavelengths, NIST Traceable with UKAS ISO 17025 accredited certificate of calibration. Detection of stray light in the UV and Visible, with a usable range of 200nm to 390nm, depending on the material.

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SKU:
RM-SN

Cylindrical Cells, Long Path Length 34 Series

Cylindrical Cells, Long Pathlength, 34 Series. Long Pathlength cells with lengths of 50-100 mm.

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SKU:
34-SOG-50

Polystyrene Mid Infrared Wavelength Reference

Polystyrene film has been a popular wavelength reference for mid-infrared spectrometers for many years. These new NIST-traceable Starna Reference Materials can be used to qualify Mid IR - FTIR spectrophotometers for wavelength accuracy over the range 3.2 µm to 18.5 µm (3125 cm-1 to 540 cm-1).Full Detail

SKU:
RM-1921/38

DMV-Bio Low Volume Cells

The Starna Demountable Micro-Volume (DMV) Bio-Cell uses advanced precision micro-machining techniques and materials to produce a patented high energy optical system which ensures that sufficient energy is available to measure low volume samples accurately and reproducibly across a wide absorbance range.Full Detail

SKU:
DMV-Q-0.125/Z8.5

Semi-Micro Special Optical Glass & Quartz Cuvettes

The purpose of Semi-Micro Type 9 cells is to reduce the sample volume necessary to make a measurement. The volume of a Semi-Micro cell is approximately 40% of an equivalent path length standard rectangular cell. Walls parallel to the light path thickened, sample chamber is 4mm wide, with two clear windows. These cells come with an open top, supplied with a non-sealing PTFE cover. 

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SKU:
9-SOG-5

Clear & Self-Masking Micro Cells w/ Stopper

Type 28 cells are identical to Type 18 Micro cells, except these cells are supplied with a PTFE stopper, or stoppers as pictured, to fit in a ground cone to reduce evaporation of volatile samples. The external height is 48mm plus the stopper. Micro cells are available with either clear walls which will transmit energy or opaque black walls for improved sensitivity. Alignment of Micro cells in instrument cell holders is critical.

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SKU:
SPA-1

Cells w/ Quartz to Pyrex Graded Seal

Quartz to Pyrex graded seals can be fused to most rectangular quartz cells, allowing them to be joined to other borosilicate apparatus. The price indicated is for the graded seal, the cost of fusing to a cell plus the cost of the chosen cell. The dimensions of the normal graded seals used are OD 10 mm, ID 8 mm, Length 70mm.

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SKU:
1-Q-10/GS

Clear & Self-Masking Semi-Micro Cells w/ Stopper

Type 29 cells are identical to Type 9 Semi-Micro cells, except these cells are supplied with a PTFE stopper, or stoppers as pictured, to fit in a ground cone to reduce evaporation of volatile samples. The purpose of Semi-Micro Type 9 cells is to reduce the sample volume necessary to make a measurement. The volume of a Semi-Micro cell is approximately 40% of an equivalent path length standard rectangular cell. The external height is 48mm plus the stopper. Micro cells are available with either clear walls which will transmit energy or opaque black walls for improved sensitivity. Alignment of Micro cells in instrument cell holders is critical.Full Detail

SKU:
29-SOG-5

Cells for use w/ Magnetic Stirrers

This range of spectrophotometer cells is designed specifically for use with magnetic stir bar type stirrers. The circular recess in the bottom both contains the stir bar and increases the stirring efficiency. Cells are supplied with a PTFE lid or stopper as pictured.

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SKU:
1-Q-10-MS

Clear & Self-Masking Micro Cells

Micro cells, Type 18, with a 2mm internal width are for use with sample volumes smaller than the standard rectangular or Semi-Micro cells. The nominal working volume of this range represents only 20% of the standard rectangular cells Type 1 with the same path length

 

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SKU:
18-SOG-5

Standard, Semi-Micro & Micro Fluorometer Cells

Standard rectangular fluorometer cells Type 3 are the most popular cells for general fluorescence measurement and they will fit virtually every fluorometer instrument. All four windows and the bottom of the cell are polished and because of the technique used in their construction they remain extremely flat, right to the very edge of the window, allowing them to be used in some laser applica­tions. Each cell is supplied with a PTFE cover.

Smaller volume Types 9F, 17F & 18F are identical to the Type 9 Semi­Micro, Type 17 Short­Micro and Type 18 Micro range, except that all cell walls and the base are optically polished.

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SKU:
3-G-5

Fluorometer Flow Through

Type 583­F range of fluorometer flow cells is designed to fit most standard fluorometers. The inlet/outlet tubes are connected with a threaded M6 connector with PTFE tubing attached. A pair of M6 connectors is sup­ plied with the type 583 cell. The cells have three clear windows. The excitation beam passes through the cell, which also allows the cell to be used for absorption spectroscopy as well. The emission window is at 90 degrees to the excitation windows.

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SKU:
583.2.2F-Q-10/Z15

Sub-Micro Spectrophotometer Cells

Sub-Micro cells, Type 16, while retaining the exterior dimensions of a standard cell, are designed for the measurement of very small samples with volumes ranging from 10µl to 160µl. The entrance to the sample compartment is hemispherical, being designed without sharp corners to eliminate potential loss of sample by capillary action. The amount of sample required to fill the sample chamber is reduced to an absolute minimum, typically fifteen to twenty per cent greater than the absolute sample chamber volume. The sample is easily inserted into and retrieved from the cell by careful use of a pipette or syringe. 

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SKU:
16.10-Q-10/Z8.5

Standard, Semi-Micro & Micro Fluorometer Cells w/ stopper

Type 23 cells are identical to Standard Rectangular fluorometer cells as listed on page 26 except that instead of having an open rectangular hole at the top, a block is fused to the top of the cell with a ground hole to receive a PTFE stopper. This provides a more suitable seal for volatile liquids. A PTFE stopper is supplied with each cell. Two stoppers are supplied with cells which have a path length of 40mm or greater.

Smaller volume Types 29F and 28F are identical to Types 9F Semi­Micro and Type 18F Micro cell ranges except they have a stopper instead of a lid. A PTFE stopper is supplied with each cell.

Full Detail

SKU:
23-G-5

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