用碳酸锶和碳酸钠的混合物作为缓冲剂,系统研究了近紫外区二条硼光谱线和七条干扰光谱线的蒸发行为,从中选出背景浅、灵敏度高的分析条件。并用于岩矿样品和地矿部制备的国家级地质标样的测定。检测下限为1 ppm,单次测定相对标准偏差为±8.9%。 Using a mixture of strontium carbonate and sodium carbonate as a buffer, the evaporation behavior of two boron spectral lines and seven interference spectral lines in the near ultraviolet region was systematically investigated. The analytical conditions of shallow background and high sensitivity were selected. It is also used for the determination of national geological standards for the preparation of rock samples and mines. The lower limit of detection was 1 ppm, with a relative standard deviation of ± 8.9% for a single assay.