Revvity PBBO Scintillator, 100 g

PBBO, IUPAC preferred name 6-phenyl-2-(4-phenylphenyl)-1, 3-benzoxazole, has an aromatic ring structure fundamental for fluorescent properties.

PBBO is a secondary scintillator or wavelength shifter and converts shorter wavelength light to longer wavelength light that can be detected by Liquid Scintillation Analyzers (LSA) such as a TriCarb or Quantulus GCT.

PBBO re-emits light in the blue-green region of the spectrum which the PMT can detect more efficiently. This improves overall counting efficiency and signal-to-noise ratio.

PBBO has a molecular formula of C₂₅H₁₇NO, a melting point of 199 - 201°C and a fluorescence maximum of 395 nm. The exact fluorescence maximum can vary slightly depending on the solvent used.