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建立了磷复肥中汞含量的测定方法。试样经混酸溶解,在酸性介质中采用冷原子吸收光谱法测定试液中的汞含量。本方法建立的线性方程相关系数r=0.9997,加标回收率在98.75%～108.26%。
A method for determination of mercury in phosphate compound fertilizer was established. The sample is dissolved in mixed acid, and the content of mercury in the test solution is determined by cold atomic absorption spectrometry in acidic medium. The linear equation established by this method has a correlation coefficient of r = 0.9997 and recovery rates of 98.75% -108.26%.