[bigshot82]

  I need to test a surface NMR P-31 coil... so I am looking for a material with a known spectra, which I can campare obtained spectra against. How can I find P-31 spectra of, say, sodium phosphate? (without proton decoupling) or any other easily-obtainable phosphorus compound?
 I looked in CRC handbook but I have trouble reading the code.