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Tris(hydroxymethyl)phosphine [P(CH2OH)3, THP] is demonstrated to be an alternative fixative to glutaraldehyde for preparation of proteinaceous specimens for SEM analysis. THP is easily prepared from commercially-available [P(CH2OH)4]Cl, and unlike many other alkylphosphines, is reasonably air-stable [>7days at pH 7–8]. Experiments carried out with chicken breast muscle, cross-sectioned perpendicular...
The use of tris(hydroxymethyl)phosphine as a coupling reagent for the immobilization of alcohol dehydrogenase onto chitosan films and for the attachment of the chitosan film to a glass support resulted in enzyme activities far above those obtained by adsorption of enzyme, and greater than those observed when using the more conventional glutaraldehyde-coupling protocol. The stability of the chitosan...
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