| 单词 | reagent grade |
| 释义 | > as lemmasreagent grade reagent grade n. Chemistry a grade of commercial chemicals characterized by a high standard of purity and suitable for laboratory use; frequently attributive. ΘΚΠ the world > matter > chemistry > chemical substances > [noun] > chemicals > others fine chemicals1839 heavy chemicals1874 reagent grade1905 inorganic1945 the world > matter > chemistry > chemical substances > [adjective] > of or relating to chemicals > others reagent grade1905 1905 Bot. Gaz. 39 3 The chemicals..were Merck's guaranteed reagent grade. 1966 A. S. Prasad Zinc Metabolism xv. 275 Six of..[the patients] received reagent grade zinc sulfate 90 mg daily. 1993 Dyes & Pigments 21 17 Commercially available reagent-grade substances were used in this work. < as lemmas |
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