FLT Standards

Fluorescence lifetime (FLT) standards are used to calibrate or test the performance of time- and frequency-domain instrumentation for luminescence lifetime measurements [25].

Excitation Light Sources Characteristics
Product Number
(Specs Sheet)
Product Name
(Product Info)
380 405 436 488 532 594 635 650 680 700 750 780 Medium λ abs
[nm]
ε
[M –1
cm–1]
λ em
[nm]
QY
[%]
FLT
[ns]
Buy
                 
KS-370
KS-370
330–405 nm FLT Standard
330–405 nm FLT Standard
PB 7.4 370 470 80 3.18
KS-650
KS-650
590–650 nm FLT Standard
590–650 nm FLT Standard
PB 7.4 647 250,000 665 27 1.05
KS-405
KS-405
370–420 nm FLT and FP Standard
370–420 nm FLT and FP Standard
Water 405 518 9.07

Below is a list of fluorescence lifetime standards that have single-exponential decays and can be used for calibration.

 

Characteristics of Fluorescence Lifetime (FLT) Standards

 Product Number
(Specs Sheet)
Lifetime Standard
(Product Info)
Solvent Lifetime
at 25 oC [ns]
Excitation Range
[nm]
Emission Range
[nm]
KS-370 330-405 nm FLT Standard Phosphate buffer pH 7.4 3.18±0.04 330–405 450–550
  p-Terphenyl Ethanol 1.05 228-320 310-412
  PPO Ethanol 1.4 280-350 330-480
KS-405 370–420 nm FLT and FP Standard Water 9.07±0.03 370–420 490–590
  Anthranilic Acid Ethanol 8.9 290 400
   POPOP        
  Fluorescein, dianion NaOH/Water 4±0.1 400 490-520
  Rhodamine B Ethanol 1.7 500-565 583
  Texas Red Ethanol 4.2 589 615
KS-550 Rose Bengal Water 0.078±0.03 510–560 560–590
KS-650 590–650 nm FLT Standard Phosphate buffer pH 7.4 0.98±0.03 590–650 660–710

 

Please contact us if you require additional information or for help with standards having different absorption, emission or lifetime properties.

 

 

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