In this paper,the determination of trace tin in blood by optical temperature control GFAAS with the use of KNO_3 as matrix modifier was studied.

• 本文研究了以KNO_3作基体改进剂,用标准加入法、光控温度石墨炉原子吸收光谱法直接测定了人体血液中痕量锡。