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 Long Pathlength Cuvette, 40mm Pathlength, 14 mL, Molded, QG24205-5

Quartz Long Pathlength Cuvette, 5 Clear Windows, Volume: 14 mL, Outer Dim(HxWxD): 42.5 x 12.5 x 45mm, Path Length: 40mm, Inner Width: 40mm, Wavelength: 190– 2500nm, Fabrication: Molded, with Lid, Packing: 1pc/ea, PN: QG24205-5..

US$461.00

Quartz Long Pathlength Cuvette, 50mm Pathlength, 17.5 mL, Molded, QG24206-5

Quartz Long Pathlength Cuvette, 5 Clear Windows, Volume: 17.5 mL, Outer Dim(HxWxD): 52.5 x 12.5 x 45mm, Path Length: 50mm, Inner Width: 50mm, Wavelength: 190– 2500nm, Fabrication: Molded, with Lid, Packing: 1pc/ea, PN: QG24206-5..

US$599.00

Quartz Long Pathlength Cuvette, 60mm Pathlength, 21 mL, Fused, QG24460-2

Quartz Long Pathlength Cuvette, 2 Clear Windows, Volume: 21 mL, Outer Dim(HxWxD): 12.5 x 62.5 x 45mm, Path Length: 60mm, Inner Width: 10mm, Wavelength: 190– 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24460-2..

US$180.00

Quartz Long Pathlength Cuvette, 60mm Pathlength, 21 mL, Glued, QG24459-2

Quartz Long Pathlength Cuvette, 2 Clear Windows, Volume: 21 mL, Outer Dim(HxWxD): 12.5 x 62.5 x 45mm, Path Length: 60mm, Inner Width: 10mm, Wavelength: 190– 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24459-2..

US$90.00

Quartz Long Pathlength Cuvette, 80mm Pathlength, 28 mL, Fused, QG24188-2

Quartz Long Pathlength Cuvette, 2 Clear Windows, Volume: 28 mL, Outer Dim(HxWxD): 12.5 x 82.5 x 45mm, Path Length: 80mm, Inner Width: 10mm, Wavelength: 190– 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24188-2..

US$258.00

Quartz Long Pathlength Cuvette, 80mm Pathlength, 28 mL, Glued, QG24187-2

Quartz Long Pathlength Cuvette, 2 Clear Windows, Volume: 28 mL, Outer Dim(HxWxD): 12.5 x 82.5 x 45mm, Path Length: 80mm, Inner Width: 10mm, Wavelength: 190– 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24187-2..

US$95.00

Quartz Long Pathlength Cuvette, 90mm Pathlength, 31.5 mL, Fused, QG24191-2

Quartz Long Pathlength Cuvette, 2 Clear Windows, Volume: 31.5 mL, Outer Dim(HxWxD): 12.5 x 92.5 x 45mm, Path Length: 90mm, Inner Width: 10mm, Wavelength: 190– 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24191-2..

US$342.00

Quartz Long Pathlength Cuvette, 90mm Pathlength, 31.5 mL, Glued, QG24190-2

Quartz Long Pathlength Cuvette, 2 Clear Windows, Volume: 31.5 mL, Outer Dim(HxWxD): 12.5 x 92.5 x 45mm, Path Length: 90mm, Inner Width: 10mm, Wavelength: 190– 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24190-2..

US$107.00

Quartz Lovibond Cuvette, 133.4mm Pathlength, 65 mL, Fused, QG24082-2

Quartz Lovibond Cuvette, 2 Clear Windows, Volume: 65 mL, Outer Dim(HxWxD): 20 x 137.4 x 40mm, Path Length: 133.4mm, Inner Width: 16mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24082-2..

US$318.00

Quartz Lovibond Cuvette, 133.4mm Pathlength, 65 mL, Fused, QG24083-2

Quartz Lovibond Cuvette, 2 Clear Windows, Volume: 65 mL, Outer Dim(HxWxD): 20 x 137.4 x 40mm, Path Length: 133.4mm, Inner Width: 16mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24083-2..

US$636.00

Quartz Lovibond Cuvette, 133.4mm Pathlength, 65 mL, Glued, QG24081-2

Quartz Lovibond Cuvette, 2 Clear Windows, Volume: 65 mL, Outer Dim(HxWxD): 20 x 137.4 x 40mm, Path Length: 133.4mm, Inner Width: 16mm, Wavelength: 190 – 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24081-2..

US$137.00

Quartz Lovibond Cuvette, 133.4mm Pathlength, 65 mL, Molded, QG24084-2

Quartz Lovibond Cuvette, 2 Clear Windows, Volume: 65 mL, Outer Dim(HxWxD): 20 x 137.4 x 40mm, Path Length: 133.4mm, Inner Width: 16mm, Wavelength: 190 – 2500nm, Fabrication: Molded, No Lid, Packing: 1pc/ea, PN: QG24084-2..

US$588.00

Quartz Macro Cubic Cuvette, 74mm Pathlength, 420 mL, Glued, QG24371-1

Quartz Macro Cubic Cuvette, 1 Clear Windows, Volume: 420 mL, Outer Dim(HxWxD): 80 x 80 x 80mm, Path Length: 74mm, Inner Width: 74mm, Wavelength: 190 – 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24371-1..

US$360.00

Quartz Macro Cuvette, 20 / 50mm Pathlength, 50 mL, Fused, QG24370-4

Quartz Macro Cuvette, 4 Clear Windows, Volume: 50 mL, Outer Dim(HxWxD): 24 x 54 x 52mm, Path Length: 20 / 50mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24370-4..

US$318.00

Quartz Macro Cuvette, 20mm Pathlength, 14 mL, Molded, QG24366-4

Quartz Macro Cuvette, 4 Clear Windows, Volume: 14 mL, Outer Dim(HxWxD): 26 x 26 x 40mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Molded, No Lid, Packing: 1pc/ea, PN: QG24366-4..

US$377.00

Quartz Macro Cuvette, 20mm Pathlength, 17 mL, Molded, QG24697-2

Quartz Macro Cuvette, 2 Clear Windows, Volume: 17 mL, Outer Dim(HxWxD): 24 x 24 x 45 (62)mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 - 2500 nm, Fabrication: Molded, Screw Cap, Packing: 1pc/ea, PN: QG24697-2..

US$432.00

Quartz Macro Cuvette, 20mm Pathlength, 53 mL, Fused, QG24369-2

Quartz Macro Cuvette, 2 Clear Windows, Volume: 53 mL, Outer Dim(HxWxD): 24 x 54 x 55mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24369-2..

US$210.00

Quartz Macro Cuvette, 50mm Pathlength, 43 mL, Fused, QG24368-2

Quartz Macro 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: Fused, No Lid, Packing: 1pc/ea, PN: QG24368-2..

US$132.00

Quartz Macro Cuvette, 50mm Pathlength, 43 mL, Glued, QG24367-2

Quartz Macro 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: QG24367-2..

US$90.00

Quartz Macro Reaction Cuvette, 20mm Pathlength, 16 mL, Fused, QG24376-4

Quartz Macro Reaction Cuvette, 4 Clear Windows, Volume: 16 mL, Outer Dim(HxWxD): 24 x 24 x 42mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24376-4..

US$191.00

Quartz Macro Reaction Cuvette, 20mm Pathlength, 16 mL, Glued, QG24375-4

Quartz Macro Reaction Cuvette, 4 Clear Windows, Volume: 16 mL, Outer Dim(HxWxD): 24 x 24 x 42mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Glued, No Lid, Packing: 1pc/ea, PN: QG24375-4..

US$115.00

Quartz Macro Special Cuvette, 20mm Pathlength, 53 mL, Fused, QG24507-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 53 mL, Outer Dim(HxWxD): 24 x 54 x 55mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24507-2..

US$210.00

Quartz Macro Special Cuvette, 20mm Pathlength, 54 mL, Fused, QG24508-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 54 mL, Outer Dim(HxWxD): 26 x 46 x 70mm, Path Length: 20mm, Inner Width: 20mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24508-2..

US$215.00

Quartz Macro Special Cuvette, 30mm Pathlength, 45 mL, Fused, QG24506-2

Quartz Macro Special Cuvette, 2 Clear Windows, Volume: 45 mL, Outer Dim(HxWxD): 34 x 34 x 52mm, Path Length: 30mm, Inner Width: 30mm, Wavelength: 190 – 2500nm, Fabrication: Fused, No Lid, Packing: 1pc/ea, PN: QG24506-2..

US$127.00