摘要
利用辉光放电光谱法测定合金化镀锌板镀层中铁含量,根据样品由表至里的辉光放电积分图谱,分别积分计算镀层中锌、铝、合金化铁的质量,从而得到镀层中真实的铁含量。同时,根据GB/T 1839的镀锌表面处理办法将合金化镀锌板镀层全部溶出,采用ICP-AES法测定镀层中铁的百分含量。结果发现,辉光放电光谱法与ICP-AES法对两块试样分别进行6次测定,相对标准偏差分别为1.6%、1.9%和1.6%、0.31%,辉光放电光谱法测定结果与ICP-AES法偏差分别为0.32%和0.48%。通过这种方法比对,还可以在采用辉光放电光谱法对非典型合金化镀锌板进行分析时优化积分参数,确保在线生产检验的连续性及准确性。
The content of ion in the coating of alloying galvanized sheet was determined by glow discharge spectrometry.Based on the glow discharge integration spectrum of sample from surface to inner,the mass of zinc,aluminum and alloying iron in the coating was calculated by integration.Consequently,the percentage of actual iron in the coating could be obtained.Meanwhile,the alloying galvanized sheet was fully dissolved by the treatment method of galvanized surface in GB/T1839.Then,the content of iron in coating was determined by ICP-AES.Two samples were determined for six times using glow discharge spectrometry and ICP-AES,respectively.The results showed that,the relative standard deviations（RSD） were 1.6 %,1.9 % and 1.6 %,0.31 %.The deviations between glow discharge spectrometry and ICP-AES were 0.32 % and 0.48 %.By the comparison with this method,the integration parameters in the analysis of atypical alloying galvanized sheet by glow discharge spectrometry could be optimized.The continuity and accuracy of online production inspection could be guaranteed.
出处
《冶金分析》
CAS
CSCD
北大核心
2012年第1期23-28,共6页
Metallurgical Analysis
关键词
合金化镀锌板
镀层
铁含量
辉光放电光谱
alloying galvanized sheet
coating
iron content
glow discharge spectrometry
