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The United States Homeopathic
Pharmacopœia, 1878
British Pharmacopoeia
16
th
Edition, 2016
Ginger
(
Ph. Eur. monograph 1522)
Content:
Minimum 15 mL/kg of essential oil (anhydrous drug).
Identification:
Macroscopic, microscopic, TLC
Tests:
Water (NMT 100 mL/kg), Total Ash (NMT 6.0%)
Assay:
Essential oil (NLT 15 mL/kg)
Use 20.0 g of the freshly, coarsely powdered herbal drug, a 1000 mL round-bottomed flask,
10 drops of
liquid paraffin R
or other antifoam, 500 mL of
water R
as distillation liquid and 0.5
mL of
xylene R
in the graduated tube. Distil at a rate of 2-3 mL/min for 4 h.
Strong Ginger Tincture
Tests:
Ethanol content (80 – 88%), Dry residue (2.0 – 3.0%), Relative density
(0.832 – 0.846)
Weak Ginger Tincture
Tests:
Ethanol content (86 – 90%), Dry residue (NLT 0.4%), Relative density
(0.825 – 0.835)