Using the microwave digestion method with PTFE sealing pressure dissolve PP samples,through graphite furnace atomic absorption spectrometry which has continuous source measure the elements content such as Ti,Al,Cr and Pb.Experiments show that the precision,accuracy and detection limit of this method can well meet the test requirements.By measuring the metal content in the polymer can reflect the content of catalyst and initiator in polypropylene products,to play a positive guiding significance to process control.%采用聚四氟乙烯密封增压微波消解法消化聚丙烯样品,通过连续光源石墨炉原子吸收光谱法测定Ti、Al、Cr和Pb等元素的含量。实验证明,本方法的精密度、准确度、检出限都能很好的满足测试要求。通过测定聚合物中的金属含量可以反映聚丙烯产品中催化剂和引发剂的含量,为工艺控制起到积极的指导意义。
展开▼
机译:微波消解-火焰原子吸收光谱法测定黔产果上叶中5种金属元素的含量Determination of Five Metallic Elements in Guoshangye from Guizhou by Microwave Digestion-flame Atomic Absorption Spectrometry
机译:微波消解-电感耦合等离子体质谱法测定怀牛膝中重金属元素含量Determination on Heavy Metals Content of Achyranthes bidentata Blume. through Inductively Coupled Plasma Mass Spectrometry (ICP-MS)