主题：【资料】陶瓷消解处理过程---样品消解资料之二

翻译第二篇.是关于钛酸钡陶瓷消解的，大家给提提意见

CERAMICS OF BARIUM TITANATE
Publication: Chemical analysis by Inductively Coupled Plasma Atomic Emission Spectrometry of semiconducting ceramics of barium titanate  doped with various metal oxides
Authors:
Field: Ceramic
Elements: Al, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Nb, Ni, P, Pb, Si, Sr, W, Zn, Zr

The sample was crushed and milled down to a grain size < 30 µm in a tungsten carbide mortar.
Three decomposition methods were used.

Decomposition with HCl under pressure
The powdered sample (0.2 g) was treated in a PTFE-lined pressure vessel with 5 ml of HCl. Total dissolution requires 14 h at 160 °C. The solution was diluted to 100 ml with distilled water.
           
Fusion with Na2CO3
The sample (0.2 g) was mixed with 2.0 g of  Na2CO3 in a platinum crucible and fused by heating in a Mekker burner for 30 min. After cooling, it was introduced carefully in a 250-mL beaker containing 100 ml of 1+9 (v/V) HCl and gently heated until the fused sample was dissolved. The solution was completely transferred to a 200 ml volumetric flask and diluted to volume with 1 +9 (v/v) HCl.
           
Fusion with Li 2B4 O7
The sample (0.2 g) was mixed with 2.0 g of Li 2B4 O7  in a porcelain crucible, and then transferred to a graphite crucible. The mixture was fused in a muffle furnace at 1100 °C for 20 min. The melt was then carefully and quickly poured into a 400-mL beaker containing 100 ml of 1 + 24 (v/v) HNO3 . The contents were stirred with a teflon-covered magnetic bar, on top of a magnetic stirrer until the melt dissolved. The solution was diluted to 200 ml with 1 + 24 (v/v) HNO3.

钛酸钡陶瓷

应用：利用ICP 化学分析含有各种金属氧化物钛酸钡半导体陶瓷
作者：Juan C Farinas, Maria F. Barba
领域：陶瓷业
分析元素：Al, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Nb, Ni, P, Pb, Si, Sr, W, Zn, Zr
           
将样品在炭化钨研钵碾碎并研磨至粒度小于30 µm

三种分解方法可以使用

用盐酸加压消解
              粉末样品（0.2g） 在聚四氟乙烯压力容器加5ml HCL 被处理，整个消解需要在160°C温度下
14小时，溶液加蒸馏水稀释至100ml

用 Na2CO3熔融
          0.2g 的样品与2.0g Na2CO3混合在白金坩埚内，在Mekker burner（？加热灯）加热熔融30分 
            钟，冷却后，小心倒入装有100ml HCL(1+9 v/V)的250ml烧杯中，缓慢加热至熔融样品溶解。
将溶液完整的转移到200ml容量瓶并用HCL(1+9 v/V)稀释定容。

用Li 2B4 O7熔融
            0.2g 的样品与2.0g Li 2B4 O7混合在瓷坩埚内，然后移至石墨坩埚，在马氟炉内1100 °C
          下混合物熔融 20分钟，然后熔融物小心快速的被倒入一个加有100ml(1+24 v/v) HNO3的400ml
烧杯中，用特氟隆磁棒搅拌混合物，直到磁棒顶端的熔融物溶解，溶液用1 + 24 (v/v) HNO3稀释
定容200ml.