Arsenic is separated from the bismuth matrix by ion exchange method and determined by hydride generation atomic absorption spectrophotometry.
该方法用离子交换将砷同基体铋分离，然后用氢化物发生原子吸收光谱法测定。
2
A three-dimensional transfer matrix model was presented to simulate the sound absorption coefficients of the graded polyurethanes based on relation of stress and strain of polymers.
Aluminum in the wet-digested food was determined by tantalum-coated graphite tube-graphite furnace atomic absorption spectrometry with matrix modifier.