Low blank determination of boron in geochemical materials

A new method for the determination of boron in material with high silica and low boron content is described. Low boron blank values (0.10 μg) could be achieved by using an acid digestion technique. Boron was separated from all interfering elements by eluting through a boron specific resin. Measurements were performed with induetively coupled plasma atomic emission spectrometry and spectrophotometry using azomethine-H. The method was tested on geochemical reference materials. It is demonstrated that this method is elegant as well as precise and accurate and applicable on small amounts of sample. It can be recommended for routine analysis in geochemical material.