【摘要】 自行研制的原子荧光光谱仪，由无焰石墨炉原子化器、准分子激光器泵浦的脉冲染 料激光器等组成。用其对９５个南极冰雪样品中的铅进行了测量，其含量在４×１０－１２～４．７× １０－１１ｇ／ｍＬ之间。本方法的检出限为０．２×１０－１２ｇ／ｍＬ，精密度为７％。更多还原

【Abstract】 This paper reports a newly designed laser excited fluorescence spectrometer. It consists of a graphite furnace electrothermal atomizer and an excimerlaser pumped dye laser. This spectrometer has been applied to the analysis of 95 Antarctic ice-snow samples. Results show that the Pb content in samples ranges from 4 × 10-12 to 47 × l0-12 g/mL. A detection limit of 0. 2× 10-12 g/mL and a precision of 7% are obtained.更多还原