Fig. 4

HPTLC profile plate developed by MSP quality control section for raw materials. T2 and T4 are the metabolite profile of reference samples from previous batch of raw materials (stored as reference drug). When the metabolite spots observed in the test sample conforms to that of the reference sample as observed in Track Plate No:11 (developed for dre-b.zang or Safflower in English), the test sample passes its identity test. The presence of adulterant should show different profile to the reference drug