The direct determination of sulphide (S2-) by AAS in gaseous state had higher sensitivity (b = 7.48A/ mg) and precision without prescpration and colouration compared with the standard method.

• 介绍了用原子吸收在气相状态下对非金属S~(2-)进行直接测定的方法。 该法不仅具有较高的灵敏度(b=7.；48A/ mg)、精密度和准确性；同时与标准方法相比较具有无需预先分离、显色的特点;