总灰分是把一定量的样品经炭化后放入高温炉内灼烧，使有机物质被氧化分解，以二氧化碳、氮的氧化物及水等形式逸出，而无机物质以硫酸盐、磷酸盐、碳酸盐、氯化物等无机盐和金属氧化物的形式残留下来，这些残留物即为灰分。称量残留物的重量和样品重量，两者的比值即为样品中总灰分的含量。
结果：确定了石榴的水分、总灰分、浸出物的检查限度。
Results: The inspecting limit of water content, total ashes and extracts have been identified through experimental results.
制订了砂仁药材中总灰分、酸不溶性灰分和水分含量的标准。
The standards for the total ash content, acid insoluble ash content and water content in Fructus Amomi have been set up.
结果：确定了垂头菊的水分、总灰分、酸不溶性灰分、浸出物的检查限度。
Results: The inspecting limit of water content, total ashes, acid-insoluble ashes and extracts has been identified through experimental results.
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