paranitrophenyl acetate

Bernard Dumas dumas at cict.fr
Thu Feb 6 10:46:46 EST 1997


hello everybody

when paranitrophenyl acetate disolved in ethanol is diluted in phosphate=20
buffer (ph 7.0) with concentration ranging 50 to 200 mmole.litre-1 this one=
=20
becomes instable i.e the od increases, at room temperature or at 4=B0c,=20
protected or not of light
 how can i stabilize pnpa in buffer at this ph ?
 thank you in advance


=20




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