Charcoal stabilization of phenyl phosphates

Details Charcoal stabilization of phenyl phosphates Charcoal stabilization of phenyl phosphates

2007-05-08

2007-05-08

Lankford, Jr., Leon B. (Department: 1651)

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

C435S021000, C435S183000, C436S008000, C436S145000, C436S146000, C436S176000

Reexamination Certificate

active

11262715

ABSTRACT:
The invention discloses methods, compositions and kits for stabilizing a solubilized phenyl phosphate, preferably paranitrophenyl phosphate (PNPP), using charcoal. Also disclosed are methods, compositions and kits for recycling solubilized phenyl phosphate, preferably PNPP, that has an absorbance of less than 0.1 when measured at 405 nm due to non-enzymatic hydrolysis.

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Sigma-Aldrich Product Catalogue, “2-Amino-2-methyl-1,3-propanediol” (AMPD), 2004, http://www.sigmaaldrich.com/cgi-bin/hsrun/Suite7/Suite/Suite.hjx;start=Suite.HsViewHierarchy.run?Detail=Product&ProductNumber=SIGMA-A5888&VersionsSequence1, accessed Nov. 3, 2004.
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