Formaldehyde-ammonium salt complexes for the stabilization...

Chemistry: analytical and immunological testing – Including sample preparation – Stabilizing or preserving

Reexamination Certificate

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C436S008000, C436S018000, C436S111000, C436S128000, C436S130000, C436S063000, C436S069000, C422S067000, C252S408100

Reexamination Certificate

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06913932

ABSTRACT:
A stabilization reagent composition, particularly desirable for stabilizing blood samples containing platelets, contains reactants that generate multiple species of formaldehyde-ammonium complexes; at least one inhibitor of phosphatase enzymatic activity; and at least one inhibitor of protease enzymatic activity. Blood samples and other tissues are stabilized by this composition. Such stabilized samples are produced by methods for stabilizing the tissue by contacting the sample with the composition.

REFERENCES:
patent: 5459073 (1995-10-01), Ryan
patent: 5486477 (1996-01-01), Carver
patent: 5516695 (1996-05-01), Kim et al.
patent: 5529902 (1996-06-01), Kottke et al.
patent: 5648225 (1997-07-01), Kim et al.
patent: 5820721 (1998-10-01), Beane et al.
patent: 6072086 (2000-06-01), James et al.
patent: 6197539 (2001-03-01), Granger et al.
patent: 6197540 (2001-03-01), Granger et al.
patent: 6230713 (2001-05-01), Dalesandro et al.
patent: 6391568 (2002-05-01), Schneider et al.
patent: 2002/0028517 (2002-03-01), Brady et al.
patent: 2002/0160523 (2002-10-01), Wyant et al.
patent: 96/12956 (1996-05-01), None
“Platelet Counting by the RBC/Platelet Ratio Method, A Reference Method”,Am. J. Clin. Pathol., 2001; 115:460-464.
Puchtler, H., et al, “On the chemistry of formaldehyde fixation and its effects on immunohistochemical reactions”,Histochem.(1985), 82:201-204.
J.F. Walker, “Formaldehyde”, Reinhold Publishing Corporation, New York 1944; pp. 120-123 and 336-341.
Martyak, N.M., et al., “Kinetics of the Reaction of Formaldehyde with Ammonia at 23° C. as Followed by an Ammonia Selective Electrode”,Trans. Inst. Metal Finish., 1991 69(2):63-65.
Dahlgran, J.R. et al, “Determination of Formadelhyde and Other Aldehydes in Industrial Surfactants by Liquid Chromatographic Separation of Their Respective 2,4-Dinitrophenylhydrazone Derivatives”,J. Assoc. Off. Anal. Chem., 71(3):560-563 (1998).

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