Only in Titles

Search results for: Cresyl violet *Fluorescence reference standard*

paperclip

#21250654   2011/01/20 To Up

Fluorescence quantum yields of a series of red and near-infrared dyes emitting at 600-1000 nm.

The determination of the fluorescence quantum yields (QY, Φ(f)) of a series of fluorescent dyes that span the absorption/excitation and emission ranges of 520-900 and 600-1000 nm is reported. The dyes encompass commercially available rhodamine 101 (Rh-101, Φ(f) = 0.913), cresyl violet (0.578), oxazine 170 (0.579), oxazine 1 (0.141), cryptocyanine (0.012), HITCI (0.283), IR-125 (0.132), IR-140 (0.167), and four noncommercial cyanine dyes with specific spectroscopic features, all of them in dilute ethanol solution. The QYs have been measured relative to the National Institute of Standards and Technology's standard reference material (SRM) 936a (quinine sulfate, QS) on a traceably characterized fluorometer, employing a chain of transfer standard dyes that include coumarin 102 (Φ(f) = 0.764), coumarin 153 (0.544), and DCM (0.435) as links between QS and Rh-101. The QY of Rh-101 has also been verified in direct measurements against QS using two approaches that rely only on instrument correction. In addition, the effects of temperature and the presence of oxygen on the fluorescence quantum yield of Rh-101 have been assessed.
Knut Rurack, Monika Spieles

1788 related Products with: Fluorescence quantum yields of a series of red and near-infrared dyes emitting at 600-1000 nm.

1000 assays1000 tests1 kit1000 TESTS/0.65ml1000 tests1000 1 kit1000 assays1 kit1000 tests1000 assays

Related Pathways