Product

[PL] Fluorescence Spectrophotometers

[PL]Intergrating Sphere & Fluorescence Quantum Yield

JASCO | Fluorescence Quantum Yield

 

Why do measurment Fluorescence Quantum Yield ?

 

→Fluorescence Quantum Yield measurements provide information about the efficiency of a molecule’s fluorescence and is defined as the ratio of the number of photons absorbed to the number of photons emitted by a sample. Different molecular and environmental conditions not only effect whether a molecule will fluoresce or not, but can also determine the intensity of the emitted fluorescence radiation. Fluorescence quantum yield is measured using an integrating sphere to ensure that all sample fluorescence is collected.

 

 

1. ISF-134 | 60 mm Integrating Sphere

For quantum efficiency and color evaluation measurements of opaque solid or powder samples.

 

 

 

 

 

 

2. ILF-135 | 120 mm Integrating Sphere

For quantum efficiency measurements of liquids or thin membrane samples on a transparent substrate as well as opaque solid or powder samples.

 

 

 

 

 

 

 

3. ILFC-147 | Liquid N2 Cooled 120 mm Integrating Sphere

Cools samples with liquid nitrogen for fluorescence quantum yield and phosphorescence lifetime measurements. It can also be used at ambient temperatures without liquid nitrogen.

 

 

 

 

 

 

 

 

 

JASCO | Cells and Cell Holders for Integrating Spheres

 

1. Liquid sample cell

 

· 1 mm Liquid Cell

→1 x 10 mm path length, 200 μL sample volume

 

· 2 mm Liquid Cell

→2 x 10 mm path length, 400 μL sample volume

 

 

 

2. Powder sample cell

· 3 mm Powder Cell

→19 (H) x 10 (W) x 3 (T) mm

 

· 10 mm Rectangular Cell Holder

→Used to mount a 10 x 10 mm rectangular cell inside the ILF-835/ILFC-847 integrating spheres.

 

3. KBr Plate Sample Holder

· KBr Plate Sample Holder

→Used to sandwich a powder sample between two KBr plates (5 × 5 × 1 mm). The KBr sample holder can also be used for micro FTIR measurements.

 
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