The Progress and Problems in Isotopic Measurement of Boron

In the past decade the investigation on the isotopic compositions of boron in natural samples has been progressed. Many procedures have been developed to the determination of stable isotopic composltlon of boron and to the sample preparation. The technology and problem in isotopic measurement of boron were divided into three sections for dctail discussion: extraction of boron from sample, boron separation methods and isotopic measurement of boron by mass spcctrometry.