摘要
采用HNO3-H2O2微波消解电感耦合等离子体质谱法测定PET瓶中的锑。测定结果的相对标准偏差为1.4%,检出限为0.001 8mg/L。该方法具有简便、快速、准确、灵敏度高等优点。经测定5个PET瓶样品中锑的总量均偏高,建议使用钛系催化剂逐步取代锑系催化剂以降低对人身及环境可能造成危害的风险。
Stibium in PET bottle was determined by ICP-MS after microwave digestion with a mixture of nitric acid and hydrogen peroxide. The relative standard deviation is 1.4% （n ： 6） and the detection limit of this method was 0. 001 8 mg/L. The method is accurate, simple, sensitive and rapid for determination in PET bottle. The high stibium content was observed in the five PET bottles, suggesting that the stibium catalyst was replaced by titanium-based catalyst to reduce the possible risk on harming persons and environment.
出处
《大连工业大学学报》
CAS
北大核心
2014年第1期25-27,共3页
Journal of Dalian Polytechnic University
