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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.

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.

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SKU:
23-G-5

Fluorometer Flow Through, Type 46F, 47F, 71F & 72F

Fluorometer cells Type 46F and 47F (Semi­Micro) are for in­ line continuous flow type applications, usually measuring at one wavelength. Samples normally flow from the bottom to the top.

Types 71F and 72F (Semi­Micro) fluorescent cells have long windows and will fit normal cell holders. They can be used with instruments of any 'Z' dimension and are particularly suit­ able for any application where sample volume is not critical.

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SKU:
46F-Q-10

Low Head Space Sub-Micro Cells

Low head space Sub-Micro cells are designed for thermal melt. The low head space cells hold volumes ranging from 10µl to 160µl while retaining standard exterior dimensions. The entrance to the sample compartment is hemispherical, being designed without sharp corners to eliminate potential loss of sample due to capillary action. Cells are supplied with a special PTFE stopper. The liquid tight stopper reduces the volume of air. 

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SKU:
26.10LHS-Q-10/Z8.5

Fluorometer Micro Square Cells, adaptors

This range of Micro Fluorometer cells has been specifically designed by Starna for use with the FCA range of adaptors listed below. The adaptor locates the square cross section cell accurately in the center of the instrument cell compartment. Therefore, for a given path length, the cell is optimized for minimum volume and maximum sensitivity. All four windows and the base of the cells are polished and are available with either an open top or with a PTFE stopper sup­ plied with the type 23­ cells.

The FCA adaptors have exterior dimensions of a standard fluorometer cell (12.5mm x 12.5mm) and interior dimensions to accommodate the square micro fluorometer cells listed. Apertures are machined into the adaptor wall to allow for transmission of the excitation and emission energy at either 8.5 or 15mm 'Z' dimension. The aluminum adaptors are black anodized to eliminate stray light. The correct adaptor for a particular cell can be identified from the listing below.

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SKU:
3-3.30-SOG-3

Dye Laser Cells

Dye laser cells must be made extremely accurately with a surface flatness which extends to the edge of the cell. Many of the fluorometer type of cells illustrated in this catalog may be used for laser applications.Full Detail

SKU:
DLC-3-Q-10

Fluorometer Sub-Micro

Sub­Micro cells, Type 16F, 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 fluorometer Sub­Micro cells have a third window at 90° to the incident light to allow emis­sion energy to be measured. Special adaptors are not required for this cell.

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SKU:
16.10F-Q-10/Z15

Triangular, Dual-Path Length Fluorometer

Triangular fluorometer cells Type 4, with open top or Type 24 with PTFE stopper, are useful for front surface fluorescence measurement. This technique is employed when the sample is too dense for the transmission of excitation or emission energy. Analysis is made by exciting the face of the sample at an angle of 45° to both the excitation source and the emission detector.

Dual path length cells Types 52 and 53 allow for both fluorescence and absorbance measurements to be made with small volumes with a choice of two path lengths, dependent on the orientation of the cell in the cell holder. All cells have a 10mm path length in one direction and a smaller path length at 90°. All four windows and the base are clear. Type 53 is supplied with a PTFE stopper.Full Detail

SKU:
4-SB-Q-10

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