Page 160 - Applied Pharmacognosy
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Types of Chemical markers

corresponding to methyl stearate and methyl palmitate at least 5

• quantitation by normalisation
   % of stearic acid = A/C * 100 should be 40-60%
   % of stearic & palmitic acid = (A+B)/C *100 should be n.l.t

90%
Where;
A: peak area due to stearic acid.
B :peak area due to palmitic acid.
C: total peak area.

  STABILITY TESTING of HERBAL DRUGS

      According to European Medicines Agency [EMA] recommendations

The purpose of the stability study is to establish, based on testing a

minimum of two or three batches of the finished product, a shelf life
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