Method and composition for controlling formaldehyde fixation by delayed quenching
First Claim
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1. A composition comprising formaldehyde fixative and an effective formaldehyde fixative quenching amount of at least one ammonium salt.
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Abstract
A method and composition for quenching formaldehyde fixation of cell and tissue specimens. The composition includes a formaldehyde-reactive agent. The formaldehyde-reactive agent reacts with the formaldehyde to quench the fixation of the cell or tissue specimen. The method involves contacting a formaldehyde fixative solution with the composition.
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Citations
36 Claims
- 1. A composition comprising formaldehyde fixative and an effective formaldehyde fixative quenching amount of at least one ammonium salt.
- 9. A quenching composition comprising a formaldehyde-reactive agent and an effervescent agent.
- 13. A composition for quenching a fixative which includes formaldehyde comprising a core and a coating layer around the core, the core including a formaldehyde-reactive agent.
- 27. A method for quenching a formaldehyde containing fixative comprising contacting the fixative with a composition containing an ammonium salt.
- 30. A method for quenching a formaldehyde containing fixative comprising contacting the fixative with a composition including a core, the core having a coating, the core including a formaldehyde-reactive agent.
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33. A method for quenching a formaldehyde containing fixative for fixing a biological sample comprising:
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contacting the sample with a fixative including formaldehyde;
contacting the fixative with a composition including a core including a formaldehyde-reactive agent, the core having a coating. - View Dependent Claims (34, 35, 36)
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Specification