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高溫水解爐中氟離子的電極斜率的標定

发布时间：2015-01-05 点击次数：2224次

氟子测定仪也称高温水解炉装置，是测定煤中氟离子的总含量的理想设备。测定氟含量的精准度氟离子的电极起到了重要的作用，要是结果精准，氟离子的电极要先标定也就是电极的斜率。

电极斜率的标定

1、連接電極與儀器表。（如果是單電極，同時參比電極接上）

2、将50ml去离子水倒进去150ml的烧杯内，加入50ml TISAB,彻底搅拌均匀。将仪表调到M挡

3、用去離子水漂洗電極，用清潔紙巾吸幹的水分，並將電極放入第2步中配制好的溶液中。

4、移取1ml的1000pm的氟離子標准溶液，放入上述是燒杯內，徹底攪拌均勻。當顯示穩定的讀數後，記錄該數值（E1)

5、移取10ml相同的標准溶液，放入同一個燒杯內，徹底攪拌均勻，當顯示穩定的讀數後，記錄該數值（E2)。

6、兩個數的差值（E1-E2）就是該電機的斜率。這個值應該在56±4MV（25℃）爲合格。。。。

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