Department;
of;
Chemistry,;
Beijing;
Normal;
University,;
Beijing;
100875,;
China;
Department;
of;
Chemistry;
and;
Life;
Science,;
Gannan;
Normal;
University,;
Ganzhou,;
Jiangxi;
341000,;
China;
无机砷; 测定方法; 电化学氢化物发生; 原子吸收光谱法; 选择性电化学还原;