Long Path Length Cuvettes

Long Path Length Cuvettes

What are “long path” cuvettes and why are they used? (sample too dilute)

Cuvettes with an optical path length of 10 mm are used in many different types of solution analyses. If the sample concentration is low, however, it may not be possible to obtain enough absorbance with a cell of this size. Although concentrating such samples allows the use of 10-mm cells, concentration is difficult in cases where the sample vaporizes or undergoes a chemical change during the concentration process.

In such cases, measurement using a "long-path cell" is effective. There are long-path cells with optical path lengths of 20mm, 30mm, 40mm, 50mm, and 100mm. The absorbance increases in proportion to the optical path length of the cell. The figure here shows the results obtained by analyzing a 10-mg/L potassium permanganate solution with a 10-mm cell and a 100-mm cell. It can be seen that the absorbance of the 100-mm cell is ten times that of the 10-mm cell.

A well-known application of analysis using a long-path cell is the turbidity measurement of water. 50-mm and 100-mm cells are often used to analyze samples with a low turbidity.



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Quartz Macro Special Cuvette, 40mm Pathlength, 35 mL, Fused, QG24504-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 35 mL, Outer Dim(HxWxD): 44 x 48 x 22mm, Path Length: 40mm, Inner Width: 40mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24504-2..

US$150.00

Quartz Macro Special Cuvette, 50mm Pathlength, 16 mL, Fused, QG24500-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 16 mL, Outer Dim(HxWxD): 8.5 x 54 x 40mm, Path Length: 50mm, Inner Width: 4.5mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24500-2..

US$168.00

Quartz Macro Special Cuvette, 50mm Pathlength, 30 mL, Fused, QG24503-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 30 mL, Outer Dim(HxWxD): 19 x 54 x 42mm, Path Length: 50mm, Inner Width: 15mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24503-2..

US$168.00

Quartz Macro Special Cuvette, 50mm Pathlength, 43 mL, Glued, QG24505-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 43 mL, Outer Dim(HxWxD): 24 x 54 x 45mm, Path Length: 50mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24505-2..

US$90.00

Quartz Macro Special Cuvette, 50mm Pathlength, 7 mL, Glued, QG24497-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 7 mL, Outer Dim(HxWxD): 8 x 54 x 40mm, Path Length: 50mm, Inner Width: 4mm, Wavelength: 190 – 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24497-2..

US$156.00

Quartz Micro Special Cuvette, 20mm Pathlength, 1.3 mL, Fused, QG24487-2

Quartz Micro Special Cuvette, 2 Clear Windows, Volume: 1.3 mL, Outer Dim(HxWxD): 7.5 x 22.5 x 15mm, Path Length: 20mm, Inner Width: 5mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24487-2..

US$108.00

Quartz Reflection Cuvette with Bottom Clear Window, 11mm Pathlength, 3 mL, Molded, QG24374

Quartz Reflection Cuvette with Bottom Clear Window, Volume: 3 mL, Outer Dim(HxWxD): 15 x 35mm, Path Length: 11mm, Inner Width: 11mm, Wavelength: 190 – 2500nm, Packing: 1pc/ea, PN: QG24374..

US$119.00

Quartz Reflection Cuvette, 13mm Pathlength, 4.5 mL, Fused, QG24373

Quartz Reflection Cuvette, Volume: 4.5 mL, Outer Dim(HxWxD): 15 x 35mm, Path Length: 13mm, Inner Width: 13mm, Wavelength: 190 – 2500nm, Packing: 1pc/ea, PN: QG24373..

US$51.00

Quartz Reflection Cuvette, 25mm Pathlength, 16 mL, QG24361

Quartz Reflection Cuvette, Volume: 16 mL, Outer Dim(HxWxD): 29 x 38mm, Path Length: 25mm, Inner Width: 25mm, Wavelength: 190 – 2500nm, Packing: 1pc/ea, PN: QG24361..

US$63.00

Quartz Reflection Cuvette, 33mm Pathlength, 40 mL, QG24362

Quartz Reflection Cuvette, Volume: 40 mL, Outer Dim(HxWxD): 35 x 50mm, Path Length: 33mm, Inner Width: 33mm, Wavelength: 190 – 2500nm, Packing: 1pc/ea, PN: QG24362..

US$69.00

Quartz Self-Masking Cuvette, 30mm Pathlength, 2.1 mL, Glued, QG24480-2

Quartz Self-Masking Cuvette, 2 Clear Windows, Volume: 2.1 mL, Outer Dim(HxWxD): 12.5 x 32.5 x 45mm, Path Length: 30mm, Inner Width: 2mm, Wavelength: 190 – 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24480-2..

US$150.00

Quartz Special Cuvette with Screw Cap, 10 / 32mm Pathlength, 11 mL, Molded, QG24341-4

Quartz Special Cuvette with Screw Cap, 4 Clear Windows, Volume: 11 mL, Outer Dim(HxWxD): 12.5 x 32.5 x 45 (56)mm, Path Length: 10 / 32mm, Inner Width: 10mm, Wavelength: 190 – 2500nm, Fabrication: Molded, PTFE Screw Threaded Cap, Packing: 1pc/ea, PN: QG24341-4..

US$648.00

Quartz Special Cuvette with Stopper, 25mm Pathlength, 8.8 mL, Fused, QG24377-2

Quartz Special Cuvette with Stopper, 2 Clear Windows, Volume: 8.8 mL, Outer Dim(HxWxD): 12.5 x 27.5 x 45mm, Path Length: 25mm, Inner Width: 10mm, Wavelength: 190 – 2500nm, Fabrication: Fused, Stopper, Packing: 1pc/ea, PN: QG24377-2..

US$433.00

Quartz Special Cuvette with Stopper, 50mm Pathlength, 17.5 mL, Fused, QG24363-2

Quartz Special Cuvette with Stopper, 2 Clear Windows, Volume: 17.5 mL, Outer Dim(HxWxD): 12.5 x 52.5 x 45mm, Path Length: 50mm, Inner Width: 10mm, Wavelength: 190 – 2500nm, Fabrication: Fused, Stopper, Packing: 1pc/ea, PN: QG24363-2..

US$318.00

Quartz Special Cuvette, Macro, 10/46mm Pathlength, 20 mL, Fused, QG24426-4

Quartz Special Cuvette, Macro, 4 Clear Windows, Volume: 20 mL, Outer Dim(HxWxD): 14 x 0 x 47mm, Path Length: 10/46mm, Inner Width: 10mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24426-4..

US$210.00

Quartz Special Cuvette, Macro, 11.5mm Pathlength, 13.8 mL, Fused, QG24422-2

Quartz Special Cuvette, Macro, 2 Clear Windows, Volume: 13.8 mL, Outer Dim(HxWxD): 13.5 x 30 x 45mm, Path Length: 11.5mm, Inner Width: 11.5mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24422-2..

US$90.00

Quartz Special Cuvette, Macro, 11.5mm Pathlength, 22 mL, Fused, QG24428-2

Quartz Special Cuvette, Macro, 2 Clear Windows, Volume: 22 mL, Outer Dim(HxWxD): 14 x 52.5 x 40mm, Path Length: 11.5mm, Inner Width: 11.5mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24428-2..

US$210.00

Quartz Special Cuvette, Macro, 21mm Pathlength, 56 mL, Fused, QG24430-2

Quartz Special Cuvette, Macro, 2 Clear Windows, Volume: 56 mL, Outer Dim(HxWxD): 27 x 46 x 70mm, Path Length: 21mm, Inner Width: 21mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24430-2..

US$318.00

Quartz Special Cuvette, Macro, 34mm Pathlength, 19 mL, Fused, QG24424-2

Quartz Special Cuvette, Macro, 2 Clear Windows, Volume: 19 mL, Outer Dim(HxWxD): 20 x 38 x 40mm, Path Length: 34mm, Inner Width: 16mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24424-2..

US$108.00

Quartz Special Cuvette, Macro, 50mm Pathlength, 19 mL, Fused, QG24425-2

Quartz Special Cuvette, Macro, 2 Clear Windows, Volume: 19 mL, Outer Dim(HxWxD): 12.5 x 52.5 x 40mm, Path Length: 50mm, Inner Width: 10mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24425-2..

US$60.00

Quartz Special Cuvette, Narrow Width, 50mm Pathlength, 5.25 mL, Fused, QG24580-2

Quartz Special Cuvette, Narrow Width, 2 Clear Windows, Volume: 5.25 mL, Outer Dim(HxWxD): 12.5 x 52.5 x 45mm, Path Length: 50mm, Inner Width: 3mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24580-2..

US$369.00

Quartz Tank, Large Cubic Cuvette, 5 Windows, 50mm Pathlength, 125 mL, Molded, QG24104-5

Quartz Tank, Large Cubic Cuvette, 5 Windows, 5 Clear Windows, Volume: 125 mL, Outer Dim(HxWxD): 54 x 54 x 52mm, Path Length: 50mm, Inner Width: 50mm, Wavelength: 190 – 2500nm, Fabrication: Molded, No Lid, Packing: 1pc/ea, PN: QG24104-5..

US$468.00

Quartz Tank, Large Cubic Cuvette, 5 Windows, 50mm Pathlength, 125 mL, Molded, QG24105-5

Quartz Tank, Large Cubic Cuvette, 5 Windows, 5 Clear Windows, Volume: 125 mL, Outer Dim(HxWxD): 54 x 54 x 52mm, Path Length: 50mm, Inner Width: 50mm, Wavelength: 190 – 2500nm, Fabrication: Molded, Quartz Lid, Packing: 1pc/ea, PN: QG24105-5..

US$503.00

Quartz Tank, Large Cubic Cuvette, No Lid, 30mm Pathlength, 18 mL, Fused, QG24108-4

Quartz Tank, Large Cubic Cuvette, No Lid, 4 Clear Windows, Volume: 18 mL, Outer Dim(HxWxD): 34 x 34 x 24mm, Path Length: 30mm, Inner Width: 30mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24108-4..

US$192.00