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土壤中全硼的测定历来都采用碳酸钠熔融后,加乙醇沉淀分离,再按姜黄素比色法测定.这种分析方法操作烦琐,又不易掌握,还必须具备价格昂贵的白金坩埚,消耗大量的乙醇.而用氟硼酸根离子选择性电极来测定土壤中的全硼,灵敏度高,操作简便快速,测量范围广,适宜大批样品的分析.本法可测10~(-7)～x%的硼.一、测定方法(一)仪器
Determination of total boron in the soil has always been the use of sodium carbonate melting, ethanol precipitation separation, and then measured by curcumin colorimetric analysis of this method is cumbersome and difficult to grasp, you must also have expensive platinum crucible, consume a large amount Of ethanol.Using fluoroborate ion selective electrode to determine the total boron in the soil, the sensitivity is high, the operation is quick and easy, the measurement range is wide and suitable for the analysis of a large number of samples.This method can measure 10 ~ (-7) ~ x% Boron. First, the determination of (a) instrument