Addition matrixes modifier to pretreatment of sample which can improve ashing temperature and reduce loss of Se and interference of matrixe suited to graphite furnace absorption spectroscopy (GAAS).

• 加入基体改进剂适用于石墨炉原子吸收光谱法的样品预处理,可以提高硒的灰化温度,减少硒的损失以及样品中基体的干扰;