铜合金中高含量锌的火焰原子吸收快速测定法

Rapid Determination of High Content Zinc in Copper Alloys by Atomic Absorption Spectrometry

选用锌的次灵敏线307 6nm,以空气 乙炔火焰原子吸收法测定铜合金中高含量锌,确定了仪器的最佳工作条件,试验了各种酸及酸度、共存离子及基体对锌的影响,以此拟定了简便、准确和快速的测定方法。样品实测的回收率为95 6%～104 4%,相对标准偏差为0 51%～0 99%。

High content zinc in copper alloys is determined by atomic absorption spectrometry with airacetylene flame.In order to achieve a simple,accurate and rapid determination,the subsensitive line of 3076 nm is used,the conditions of the instrument are optimized and the influence of different acids at different acidities,coexisting ions and the base element on zinc are tested.The recovery of the sample tested in 956%1044% and the deviation related to standard is 051%～099%.