Abstract
Abstract Since boron is a necessary trace nutrient element in the physiological development of growing plants, it is important to be able to determine accurately the total amount of boron, soluble boron, and residual boron in soil samples, the boron in environmental water, and the boron in plant samples. Boron with Beryllon III can produce a stable ionic complex in buffer solution (pH 4–4.5).1 The complex yields a well-defined high-sensitivity polarographic peak at a potential of about -0.46 V (vs SCE). Under optimum conditions, the wave height is proportional to the concentration of boron in the range from 0.004 to 0.4 μg/ml. The method has been used to determine trace amounts of boron in environmental water samples, total boron, soluble boron and residual boron in soil samples, and trace amounts of boron in plant samples.
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