Sample Preparation for Volatile Oil Analysis of Cassia Bark
Keyword(s):
Abstract We established that the choice of the laboratory mill has little effect on steam-distillable volatile oil (VOSD) analysis of Cassia bark when reasonable care is used in preparing single samples. When multiple samples are milled, caution is advised to avoid temperature increase. Data from 11 laboratories are presented for 4 test samples. Participating laboratories milled 200 g samples, and the variation of the resulting VOSD in the ground spice could not be attributed to the different grind-size profiles measured. The estimated systematic error due to type of mill was 0.04 mL/100 g. This represents a relative standard deviation of 2.2% for the lowest average volatile oil levels.
2014 ◽
Vol 599-601
◽
pp. 196-200
2020 ◽
1998 ◽
Vol 81
(4)
◽
pp. 763-774
◽
1995 ◽
Vol 316
(2)
◽
pp. 173-184
◽