微波消解结合电感耦合等离子体发射光谱法测定海绵钛中氯含量  

Determination of chlorine in titanium sponge by inductively coupled plasma optical emission spectroscopy with microwave digestion

作　　者：赵艳 谢艳艳 白晓艳 高燕 高天旸 陈星 王利伟 ZHAO Yan;XIE Yanyan;BAI Xiaoyan;GAO Yan;GAO Tianyang;CHEN Xing;WANG Liwei(China United Test and Certification Company Ltd.,Beijing 100088,China)

机构地区：[1]国合通用测试评价认证股份有限公司,北京100088

出　　处：《分析试验室》2022年第9期1096-1098,共3页Chinese Journal of Analysis Laboratory

摘　　要：建立了一种微波消解结合电感耦合等离子体发射光谱法(ICP-OES)测定海绵钛中的氯含量。利用微波消解仪对海绵钛样品进行消解溶样,选择分析谱线为134.724 nm,进行基体匹配且对共存杂质元素硅、铁、锰、镁、钙、镍、铬等进行干扰实验。结果表明,共存杂质对氯的测定无明显干扰。在最佳条件下,氯在0~10 mg/L范围内具有良好的线性关系,线性相关系数r大于0.999,回收率为98.7%~104%,相对标准偏差为2.8%。该方法可以检测海绵钛产品中含量大于0.025%的氯。A determination method for chlorinity in titanium sponge by inductively coupled plasma optical emission spectroscopy(ICP-OES)was established.The sample was fully dissolved by microwave digestion at high temperature.The spectral line of 134.724 nm was chosen,and the effect of coexisting impurities of Si,Fe,Mn,Mg,Ca,Ni,Cr and main matrix was investigated.The results showed that there was no obvious interference for the determination of chlorine.A good linear relationship of chlorinity was exhibited in the range of 0-10 mg/L(r≥0.999),with the standard addition recoveries of 98.7%-104%and the RSDs of 2.8%.This method could detect trace chlorine in titanium sponge reliabely.

关 键 词：电感耦合等离子体发射光谱 海绵钛 氯含量 

分 类 号：TG146.23[一般工业技术—材料科学与工程] O657.31[金属学及工艺—金属材料]