Firstly, select

105 ℃, 30 minutes to determine the total LOD.

Secondly, select

70 ℃ , measure LOD to constant weight.

If these two data are similar, you can select the second method.

otherwise, select 80 ℃ , measure LOD to constant weight.

or use 80 ℃ for 15 minutes, ------------

until you find a method to match the total LOD on the first step.

Please look at the following below links which may help you in your analysis:

http://www.denverinstrument.com/denverusa/media/pdf/archive_lit/IR-200-IR-30.pdf https://www.techadv.com.au/literature/ohaus/userguides/ohaus-moisture-analysis-guide.pdf http://people.umass.edu/~mcclemen/581Moisture.html

Thanks

For herbal materials lod 105℃ for five hrs. Details Given in API