巿售藥材中總灰分及酸不溶性灰分測定

TOTAL ASH AND ACID-INSOLUBLE ASH DETERMINATION OF CHINESE CRUDE DRUGS

植物中總灰分乃指植物體內含或附著、摻雜於植物體經灰化後的不揮發性無機鹽。其含量多寡，隨植物生長環境，如栽培或野生、產地、採集時間之不同而異。而酸不溶性灰分則為植物組織內的矽酸鹽及附著、摻雜之砂土。兩者之測定，可做為植物性藥材品質評估之參考。所以本實驗擇選衛生署所發行的中藥典範中尚未收載總灰分及酸不溶性灰分限量之藥材30種，在本省北、中、南部藥材店中抽購經過洗、切等前處理之藥材300件，依據中華藥典第三版所載該兩項之測定方法，加以檢驗。所得結果如表一，其中總灰分及酸不溶性灰分含量最高者為地骨皮，其平均值分別為14.07%，5.58%；最低者為白芨其平均值分別為l.68%及0.27%。

In order to understand the Chinese crude drugs which there are no testing items about total ash and acid- insoluble ash in the Patterns of Chinese Medicine of R.O.C. (中華民國中藥典範), We collected 300 samples in 30 kinds of crude drugs from the market and analyzed them by Ch. P. III. methods. The results indicated that Lycii Radices Cortex contained the highest total ash (14. 07%) and acid-insoluble ash (5. 58%); Bletillae Tuber contained the lowest ones (1.68%, 0.27% respectively).