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火焰原子吸收分光光度法间接测定微量硫离子
INDIRECT DETERMINATION OFTRACE SULFUR ION BY FLAME AAS
【摘要】 本文在弱酸性条件下,使S ̄(2-)与过量的Cu ̄(2+)生成CuS并经Al(OH)_3共沉淀,离心分离后,用火焰AAS法测定剩余铜,从而间接测定硫离子。方法简便、快速。回收享在90%~104%之间。RSD小于4%。S ̄(2-)的测定范围为:1.6~11.0μ/mL。
【Abstract】 In this paper,under the condition of weak aciu S ̄(2-) and excess Cu ̄(2+) form CuS,andit is precipitated with Al(OH)3 togeather. Then it is Separated by Centrifuge Surplus Cu isdetermined by flane AAS. Thus S ̄(2-) is indirectly determined. The method is quick and simple. The rate covery is 90%~104%. RSD is less than 4%. S ̄(2-) determined range is 1.6~11.0μg/mL.
- 【文献出处】 南昌大学学报(理科版) ,JOURNAL OF NANCHANG UNIVERSITY(NATURAL SCIENCE) , 编辑部邮箱 ,1994年01期
- 【分类号】O657.3
- 【被引频次】4
- 【下载频次】121