【单选题】
离子选择性电极的性能主要决定于___。
A. 膜的种类和制造技术；
B. 使用方法；
C. 温度；
D. 溶液的搅拌。
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答案
A
解析
暂无解析
相关试题
【单选题】
现在国内的离子交换树脂都进行了统一编号，例如强酸阳离子交换树脂型号为001×7。这里“7”表示___。
A. 树脂密度；
B. 树脂含水量；
C. 树脂孔隙率；
D. 树脂交联度。
【单选题】
碱度测定的结果是酚酞碱度等于甲基橙碱度，该水样中反映碱度的离子有___。
A. OH-、C032-和HC03-；
B. C032-，无OH-和 HC03-；
C. OH-，无C032-和 HC03-；
D. HC03-，无OH-和 C032-。
【单选题】
对于强酸性阳离子交换树脂，在正常的运行过程中，对下列阳离于的选择性顺序为___。
A. Na+＞K+＞Mg2+＞Ca2+；
B. Mg2+＞Ca2+＞ K+＞Na+；
C. Ca2+＞Mg2+＞K+＞Na+；
D. Na+＞Ca2+＞Mg2+＞K+。
【单选题】
当双层床处于运行或再生的情况下时，下列说法正确的是___。
A. 水和再生液都先通过强型树脂。
B. 水和再生液都先通过弱型树脂。
C. 运行时，水先通过强型树脂；再生时，再生液先通过弱型树脂。
D. 运行时，水先通过弱型树脂；再生时，再生液先通过强型树脂。
【单选题】
逆流再生固定床在再生过程中，为防止树脂乱层，从交换器顶部送入压缩空气，气压应维持___Mpa
A. 0～0.03；
B. 0.03～0.05；
C. 0.06～0.08；
D. 大于0.08。
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