Abstract

Polymer-based materials such as surgical suture threads are the most important raw materials used in the manufacturing of medical devices. Determination of metal contamination in industrial surgical threads such as absorbable polydioxanone (PDO) and polyglycolic acid (PGA), and nonabsorbable polypropylene (PP) is very important for human health. Concentrations of aluminum, copper, zinc, and lead released from these surgical suture samples into various solutions were determined. The effects of parameters such as solvent type, temperature, pH of solvent, and time for release of these metals from the samples were investigated to determine optimum conditions. The extractable and total amount of aluminum, copper, zinc, and lead in PDO, PGA, and PP samples were performed by using electrothermal atomic absorption spectrometry. The aluminum, copper, zinc, and lead in certified standard material solution (IQC-026 mixture) were determined for the accuracy of the method. Limits of detection and quantification values of analytes found were 2.8 and 9.3 µg L⁻¹ for aluminum, 1.5 and 5.0 µg L⁻¹ for copper, 1.5 and 5.0 µg L⁻¹ for zinc, and 2.9 and 9.7 µg L⁻¹ for lead, respectively.

摘要

诸如手术缝合线之类的基于聚合物的材料是用于制造医疗设备的最重要的原材料。确定工业手术用线中的金属污染，例如可吸收的聚二恶烷酮（PDO）和聚乙醇酸（PGA），以及不可吸收的聚丙烯（PP）对人体健康非常重要。测定从这些手术缝合线样品释放到各种溶液中的铝，铜，锌和铅的浓度。研究了参数的影响，例如溶剂类型，温度，溶剂的pH值以及这些金属从样品中释放的时间，以确定最佳条件。使用电热原子吸收光谱法测定PDO，PGA和PP样品中铝，铜，锌和铅的可萃取量和总量。铝，铜，锌，确定方法标准的准确性，并使用经认证的标准材料溶液（IQC-026混合物）中的铅。发现的分析物的检出限和定量值分别为2.8和9.3 µg L^-1用于铝，1.5和5.0微克大号^-1为铜，1.5和5.0微克大号^-1为锌，和2.9和9.7微克大号^-1铅，分别。