论文部分内容阅读
铅酸蓄电池阴极活性物质硫酸钡的测定,文献报导较少,仅见到铅基合金中杂质的分析。硫酸钡是难溶物质,本文以硫酸锶作内标,采用发射光谱粉末法进行了试验。结果表明:分析线选用Ba3071.59埃Sr2931.83埃为宜;部份试样中所含木素磺酸钠无影响;标准加料回收试验的回收率在98％以上。方法简单、精密度较好,测定范围:0.05-1％。仪器与试剂 (?)-28中型摄谱仪,三透镜照明系统,直流电弧,7安培,曝光60秒;光谱纯石墨电极,下电极为φ3.5×2毫米凹形,上电极为约φ3.5毫米圆柱形;ORWO-WU3型光谱感光板,21℃显
Determination of lead-acid battery cathode active material barium sulfate, reported less literature, only to see the analysis of impurities in lead-based alloys. Barium sulfate is a poorly soluble material, strontium sulfate as an internal standard, the emission spectrum powder method was tested. The results showed that Ba3071.59 Å Sr2931.83 Å was the best choice for the analysis line. Sodium lignin sulfonate contained in some samples had no effect. The recovery rate of standard feed-back test was over 98%. The method is simple and the precision is good. The determination range is 0.05-1%. Instrument and reagent (?) - 28 Medium spectrograph, three lens illumination system, DC arc, 7 Amps, exposure 60 seconds; Spectrally pure graphite electrode, the lower electrode is φ3.5 × 2 mm concave, the upper electrode is about φ3 .5 mm cylindrical; ORWO-WU3 type spectral plate, 21 ℃ significant