L(+)-Glutamic acid 98%

Purity                              ≥99%

Loss on drying                  <0.5 % (105°C, )
Heavy metals (as Pb)              <10 ppm
Sulfated ash                  <0.1 %
Other amino acids             NO

Specific rotation [a]20/D         +30.5°～ +32.5° (c=10, 2N HCl)
Trace analysis :
  Cl                                    < 200 ppm
  Fe                                    < 30 ppm
  SO4                                   < 300 ppm
  NH4                                   < 200 ppm
  As₂O₃                                 < 1 ppm