骨髓活检脱钙液的改良

研究骨髓活检脱钙液的改良。方法 选择我院2014年1月-2015年1月经过盐酸脱钙液(旧方法)方法处理的数粒骨髓穿刺活检标本切片,以及2016年1月-2017年1月经过甲酸-柠檬酸钠脱钙液(新方法)方法处理的数粒骨髓穿刺活检标本切片做对比。 结果 新方法诊断优在胞核(苏木素)34.72%、胞浆(伊红)26.39%、CD3(66.67%)、CD20(62.50%)、EBER(58.33%)高于旧方法11.11%、9.72%、37.50%、44.44%、40.28%,差异有统计学意义,P<0.05。结论 甲酸-柠檬酸钠脱钙液可以使骨髓脱钙的彻底,并保留好组织细胞有效成分及结构,对诊断具有重要意义,值得应用。

燃煤废气中二氧化硫转变成硫磺的研究

用柠檬酸钠溶液吸收废气中的二氧化硫(SO_2)并还原成硫磺,吸收液中的硫磺分离后循环使用不外排。在SO_2脱除工艺中无需严格控制工艺条件如:烟道气中SO_2浓度的大小、气体温度、气体流速、液体流速等。实验证明该工艺具有SO_2去除率高、运行费用低、经济效益明显、不产生二次污染等优点,是脱除废气中SO2较理想的工艺。

Absorption of Sulphur Dioxide with Sodium Citrate Buffer Solution in a Rotating Packed Bed

Absorption of SO2 from a SO2/air mixture with sodium citrate buffer solution was investigated using a rotating packed bed(RPB) in laboratory scale.The effects of operating parameters,such as the rotation speed of RPB,liquid-gas ratio,inlet gas flow rate,inlet concentration of SO2 in flue gas,sodium citrate buffer concentration and initial pH of absorption solution,on the SO2 concentration in the absorption solution or removal efficiency of SO2 were examined.Incremental rate of sulfate radical ions in the absorption solution was also examined.Experimental results indicate that the efficiency of this regenerative process will be improved by using RPB under appropriate operating conditions,and the generation of SO2-4 will be restrained in the process in RPB.