simple anhydride 中文意思是什麼
simple anhydride
解釋
簡單酐-
Abstract : an imidazole - catalyzed acylation method of phthalic anhydride is applied to the determination of hydroxyl values of reinforcing agent is211. the analytical error is 5. 0 10 - 3. the relative standard deviation of the method is less than 0. 04 and its coefficient of variation is not more than 5. 0 10 - 3. hydroxyl values determined in different batch samples meet the design requirement completely. this method is rapid and simple, it is adaptable to conventional analysis
文摘:以咪唑催化鄰苯二甲酸酐酰化的方法測定增強劑is211的羥值，準確度高，分析誤差為5 . 0 10 - 3 ；方法精密度好，標準偏差小於0 . 4 ，變異系數不大於5 . 0 10 - 3 ，測定不同批號試樣的羥值完全符合商標值，方法快速、簡便，適用於常規分析。
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