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分析化学中离不开高纯度的水,在27型电导仪上测得蒸馏器的水质0.3～0.4MQ·cm~(-1),而离子交换树脂的水质一般为0.5～8MQ·cm~(-1)。在制水过程中对上海70型,天津723-3型离子交换纯水器树脂的装柱方法进行了改进;即处理好了的阳树脂1份,阴树脂2份以体积比进行混合后再装柱,可提高水质3倍。大型离子交换柱用此法同样可以提高水质。一阴树脂应用份数=阳树脂交换容量/阴树脂交换容量二水的流速近似符合下面这个公式空间流速15～30ml·h~(-1)·cm~(-1)=每小时出水量(ml·h~(-1))/树脂体积三对天津723-3型离子交换纯水器测得数据流
Analytical chemistry is inseparable from the high purity of water, measured in the 27 conductivity meter distiller water 0.3 ~ 0.4MQ · cm ~ (-1), while the ion exchange resin water quality is generally 0.5 ~ 8MQ · cm ~ ( -1). In the process of making water, the packing method of Shanghai 70 type and Tianjin 723-3 type ion-exchange water purifier resin was improved; that is, 1 part of processed cation resin and 2 parts of anion resin were mixed in volume ratio Loading column, can improve water quality 3 times. Large ion exchange column with this method can also improve water quality. The number of application of a Yin resin = cation resin exchange capacity / anion resin exchange capacity of two water flow rate approximately in line with the following formula space flow rate of 15 ~ 30ml · h ~ (-1) · cm -1 = water output per hour ( ml · h ~ (-1)) / resin volume three pairs of Tianjin 723-3 Ion Exchange Water Purifier measured data stream