你知道水质碱度在线监测仪所监测的碱度有哪些概念么?今天就让我们一起来了解一下吧。
SHUIZHIJIANDUDEGAINIAN
碱度是指水中所含能与强酸发生中和反应全部物质的总量。组成水中碱度的物质可归为三大类:一大类是强碱,如氢氧化钠、氢氧化钙在溶液中全部电离成氢氧根离子;第二大类是弱碱,如有机胺;第三大类是强碱弱酸盐如各种碳酸盐、碳酸氢盐、硼酸盐、硅酸盐、磷酸盐、硫化物、腐殖酸钠盐。
水中总碱度是指在20℃时,1L天然水中全部碱性物质被中和所需要的氢离子的物质的量,通常用Alk表示。水产人经常测定的就是总碱度。
ZONGJIANDUYOUSANBUFENZUCHENG:DIYIGEBUFENSHITANSUANYAN、TANSUANQINGYAN;DIERGEBUFENSHIPENGSUANYAN;DISANBUFENSHIQINGYANGHUAYAN。SUOYISHUOZONGJIANDUSHIYOUQIANGJIANHEQIANGJIANRUOSUANYANZUCHENG。
DANSHUIDEZONGJIANDUTONGCHANGSHITANSUANQINGGENHETANSUANGENHANLIANGJIAOGAO,PENGSUANHENSHAO,QINGYANGHUAWUDEJIANDUJIAOSHAO,YINCIDANSHUIDEZONGJIANDUTONGCHANGSHIAlk=TANSUANGEN+TANSUANQINGGENDEJIANDU。TIANRANHAISHUIDEpHZHISHI7.5~8.5,QINGYANGHUAWUDEJIANDUYEHENSHAO,YINCIHAISHUIDEZONGJIANDU=TANSUANQINGGEN+TANSUANGEN+PENGSUAN。
ZAISHUICHANYANGZHIGUOCHENGZHONG,SHIYIDEJIANDUFANWEISHIDANSHUI1.5~3.5mmol/L,SHENGCHANLISUIZHEJIANDUDEZENGJIAERZENGJIA,HAISHUIDEJIANDUXIANGDUIWENDING,WEI2~2.5mmol/L。
YUJIANDUYOUGUANDEYINSU
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