Based on the lambert - beer ' s law and considering the determination of ultramicro amounts of substances by aas , an approximate linear relationship between the transmittancy and concentration of the measured substance was derived 摘要对原子吸收光谱法在超微量测试中，给出了朗伯比耳定律的近似公式，建立了测定值和透光度的变化值之间的近似线性关系。
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