工程塑料ABS中卤族化合物和重金属元素检测方法的研究
发布时间：2018-11-01 13:29
【摘要】：随着全球信息化技术的迅速发展,电子电气产品(Electrical and Electronic Products)更新换代的速度越来越快,同时电子电气的废弃物污染也日渐加剧。多数电子电气产品含有多种有毒有害物质,在使用和废弃过程中对环境和人体健康造成极大的危害。电子电气产品中的有毒有害物质检测方法的研究是当前国际、国内电子电气领域的热点问题之一,也是我国经济快速发展必须要解决的关键问题。论文分别采用微波消解-离子色谱技术和微波消解-电感耦合等离子体质谱技术建立了工程塑料ABS中卤族化合物和重金属元素检测方法。取得的主要结果如下：建立了工程塑料ABS中氯化物等卤族化合物含量和铅、镉、铬等重金属元素检测的微波消解前处理技术。确定最佳的微波消解条件为7mLHNO3+2mL H2O2;消解温度为210℃；消解时间为60min。建立了微波消解-离子色谱技术对工程塑料ABS中的氟化物、氯化物、溴化物含量测定的检测方法。并且从线性关系、灵敏度、精密度和准确性四个方面对优化后的方法进行了评价,保证该方法的可靠性。对企业的生产和检测提供了有效的技术手段。采用电感耦合等离子体质谱法研究建立工程塑料ABS中V、Cr、Mn、Ni、 Cu、Zn、Cd、Pb、Hg、Co十种元素同时金属元素同时检测的分析方法,极大地缩短了检测时限,为企业的生产和质量把关提供了先进的技术手段。对所测定元素,标准曲线相关系数为0.9990-0.9999,方法的检出限为0.02～0.16μg/kg, RSD5%,平均加样回收率92.9～98.4%。该方法准确可靠,可用于实际样品工程塑料及工程塑料产品中重金属检测分析。论文研究认为政府应该积极培养国内企业和消费者的环保意识、健全和完善环保法规、构建保护性技术标准及标准信息发布平台,并积极推进国际认证工作。同时,我国家电企业应该积极开拓海外多元化市场、提高技术水平和研发能力、建立绿色供应链并积极发展绿色出口贸易、合理利用ROHS指令的相关豁免权并实时关注其动态。
[Abstract]:With the rapid development of global information technology, electronic and electrical products (Electrical and Electronic Products) update faster and faster, at the same time, the waste pollution of electronic and electrical products is becoming more and more serious. Most electronic and electrical products contain many kinds of toxic and harmful substances, which cause great harm to the environment and human health in the process of use and waste. The research on the detection methods of toxic and harmful substances in electronic and electrical products is one of the hot issues in the field of electronics and electricity at home and abroad, and it is also a key problem that must be solved in the rapid economic development of our country. The methods for the determination of halogen compounds and heavy metals in engineering plastics ABS were established by microwave digestion ion chromatography and microwave digestion-inductively coupled plasma mass spectrometry respectively. The main results are as follows: a microwave digestion technique was established for the determination of lead, cadmium, chromium and other heavy metal elements in engineering plastics ABS. The optimum microwave digestion conditions were determined as follows: 7mLHNO3 2mL H _ 2O _ 2, the digestion temperature was 210 鈩，
本文编号：2304063
[Abstract]:With the rapid development of global information technology, electronic and electrical products (Electrical and Electronic Products) update faster and faster, at the same time, the waste pollution of electronic and electrical products is becoming more and more serious. Most electronic and electrical products contain many kinds of toxic and harmful substances, which cause great harm to the environment and human health in the process of use and waste. The research on the detection methods of toxic and harmful substances in electronic and electrical products is one of the hot issues in the field of electronics and electricity at home and abroad, and it is also a key problem that must be solved in the rapid economic development of our country. The methods for the determination of halogen compounds and heavy metals in engineering plastics ABS were established by microwave digestion ion chromatography and microwave digestion-inductively coupled plasma mass spectrometry respectively. The main results are as follows: a microwave digestion technique was established for the determination of lead, cadmium, chromium and other heavy metal elements in engineering plastics ABS. The optimum microwave digestion conditions were determined as follows: 7mLHNO3 2mL H _ 2O _ 2, the digestion temperature was 210 鈩，
本文编号：2304063
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