采用金汞齐富集-冷原子吸收光谱法直接测定土壤中的总汞,该方法在0.00～200 ng范围内呈良好线性关系,检出限为0.005 mg kg-(1样品以0.2 g计)。实际样品测定的RSD为0.995%～5.59%,加标回收率为88.8%～103%。与原子荧光光谱法相比,两种方法测定的结果没有显著差异。 Direct determination of total mercury in the soil by gold amalgam enrichment-cold atomic absorption spectrometry showed good linearity in the range of 0.00-200 ng with a detection limit of 0.005 mg kg- (0.2 g for a sample) . The RSD of the real sample was 0.995% ~ 5.59%, and the recoveries were 88.8% ~ 103%. Compared with atomic fluorescence spectrometry, the results of the two methods were not significantly different.