Medical grade eucalyptus oil experiment application research and development test

Medical grade eucalyptus oil experiment application research and development of small test eucalyptus oil An YouEUCALYPTUS OIL This product is the myrtle family plant Eucalyptus globulus Labill.
, Lauraceae plant Cinnamomum camphora (L.
Volatile oils
extracted by water vapor distillation from other plants of the same family as Presl or the same family above.

【Properties】This product is a colorless or yellowish clear liquid; It has a peculiar aroma, slightly like camphor, and the taste is spicy and cool
.

After storing for a long time, the color becomes slightly darker
.

This product is easily soluble
in 70% ethanol.

The relative density should be 0.
895 to 0.
920 (General 0601
).

The refractive index should be 1.
458 to 1.
468 (general rule 0622
).

【Identification】Take 0.
1ml of this product, add absolute ethanol to make it into 1ml, shake to dissolve, as a test solution
.

Another eucalyptus oil essence control is taken and the control solution
is made by the same method.

According to the thin layer chromatography (General Rule 0502) test, aspirate 2 μl of each of the above two solutions, respectively, on the same silica gel G thin layer plate, with cyclohexane-ethyl acetate (9.
5:0.
5) as the unfolding agent, unfold, remove, dry, spray with 1% vanillin sulfuric acid solution
.

In the chromatography of the test product, spots
of the same color are displayed at the corresponding position as the control chromatography.

【Inspection】Water aniseed hydrocarbon Take 2.
5ml of this product, add petroleum ether (60 ~ 90 ° C) 12.
5ml, shake well, add sodium nitrite solution (5→8) 5ml, and then slowly add 5ml of glacial acetic acid, stir well, and do not precipitate crystals
within 10 minutes.

Heavy metals Take this product lg, check according to law (General 0821 Second Law), not more than 10mg / kg
.

【Content determination】Take this product, according to the eucalyptus olein content determination method (general rule 2203), that is, to obtain
.

This product contains eucalyptus oil essence (C10H18O) shall not be less than 70.
0% (g / g
).

【Storage】Shading, sealing, placed in a cool place
.