Mixture for use in the LSC (liquid scintillation counting) analy

Details Mixture for use in the LSC (liquid scintillation counting) analy Mixture for use in the LSC (liquid scintillation counting) analy

1984-09-14

1986-11-25

Terapane, John F.

Compositions

Organic luminescent material containing compositions

Scintillating or lasing compositions

252700, 252646, 250364, C09K 1106

Patent

active

046247998

ABSTRACT:
A liquid, homogeneous mixture for use in the LSC (Liquid Scintillation Counting) analysis technique, comprising a scintillation liquid, a scintillator and a surfactant, wherein the surfactant includes one or more phosphoric acid esters having formula 1 and/or formula 2 of the sheet of formulae, in which R', R" and R'" represent an organic group, which phosphor acid esters are neutralized to a pH, at which the neutralization product comprises a mono- and/or diphosphate with an alkaline material having a pK.sub.a of at least 5, and in which of the organic phosphoric acid esters having formula 1, R" and R'" may be the same or different.

REFERENCES:
patent: 3673100 (1972-06-01), Benson
patent: 3928227 (1975-12-01), Sena
patent: 3995033 (1976-11-01), Hogberg et al.
patent: 4001139 (1977-01-01), Long
patent: 4423242 (1983-12-01), Wilkinson et al.
"Difficulties in Counting Emulsions of .sup.3 H and .sup.14 C Labelled Biomolecules" by James L. O'Conner and Edwin D. Bransome, Jr.
"Effect of Admixtures on the Temperature Instability of Liquid Scintillators" by L. Ya. Zhil'tsova, I. I. Zemskova, E. N. Matveeva and V. G. Tyminskii.
"Polyethoxylated Nonionic Surfactants in Toluene for Liquid Scintillation Counting of Tritium in Aqueous Samples" by S. B. Lupica.

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