聚酯中总锑含量方法标准的研究与开发

Research and Development of Method Standard for Total Antimony Content in Polyester

在加快生态文明体制改革、建设美丽中国的大环境下,无锑聚酯纤维的生产,对推动我国纺织工业的转型升级,实现可持续绿色发展具有重要战略意义。可萃取重金属锑含量测试方法,由于试样处理不完全,测试结果偏低。试样消解后进行锑含量测试方法,试样处理相对完全,易反映真实情况。国内目前未有纤维消解后重金属锑含量的测试方法标准,需要制定相关方法标准。经调研验证制定了相关方法标准(标准号FZ/T 50057),设置电感耦合等离子体发射光谱(ICP-OES)法、抗坏血酸-碘化钾分光光度法。企业日常监控可以采用抗坏血酸-碘化钾分光光度法这一经典方法;第三方实验室可以采用ICP-OES法仲裁检验,可以很好地满足需求。

Under the environment of accelerating the reform of ecological civilization system and building a beautiful China, the production of antimony-free polyester fiber is of strategic significance to promote the transformation and upgrading of China’s textile industry and achieve sustainable and green development. The method for determination of extractable heavy metal antimony content is low due to incomplete sample treatment. After the sample digestion, the antimony content is relatively complete, easy to reflect the real situation. At present, there is no testing method standard for the content of antimony after fiber digestion in China. After investigation and verification, relevant method standards have been developed(Standard number FZ/T 50057), the methods inductively of coupled plasma optical emission spectrometry(ICPOES) and ascorbate-potassium iodide(KI) spectrophotometry are set up. The enterprise can adopt ascorbate-potassium iodide spectrophotometry method for daily monitoring, and the third-party laboratory can adopt ICP-OES method for arbitration test, which can well meets the needs.