reagent-grade

英 [ri'ːeɪdʒəntɡr'eɪd] 美 [ri'ːeɪdʒəntɡr'eɪd]

• 试剂级

reagent-grade的用法和样例：

例句

1. Unless reagent grade sucrose is available use cane sugar.
   如果没有试剂级的蔗糖，可以用甘蔗糖。
2. Reagent pure phosphato-tungstic acid was prepared by reacting sodium tungstate with dis-odium hydrogen phosphate and acidifying with hydrochloric acid.
   由钨酸钠与磷酸氢二钠反应，再经盐酸酸化制得了试剂级的磷钨酸。