作　　者： (张清智）; (丁兆娟）; (袁琛琛）; (张艳玲）; (齐生凯）;

机构地区： 思通检测技术有限公司,山东青岛266045

出　　处： 《橡胶科技》 2017年第6期43-46,共4页

摘　　要： 用微波消解-电感耦合等离子体发射光谱法(ICP-OES)检测异戊橡胶(IR)中钛质量分数。结果表明,消解体系为硝酸/硫酸/双氧水(体积比为5/1/1),谱线波长为334.940 nm,ICP-OES仪射频功率为1 300 W、雾化气流量为0.55m L·min^(-1)、进样量为1.5 m L·min^(-1)、等离子气体流量为10 L·min^(-1)时,检测的IR钛质量分数相对标准偏差为1.07%,加标回收率为95%~105%。该检测方法快速、准确、灵敏度高,满足IR中钛质量分数的检测要求。 Titanium content in isoprene rubber （IR） was determined by microwave digestion- inductively coupled plasma-optical emission spectrometry （ICP-OES）. When the digestion system was nitric acid/sulfuric acid/hydrogen peroxide with the volume ratio of 5/1/1, the spectral wavelength was 334.940 nm, RF power of ICP-OES was 1 300 W, atomization flow was 0.55 mL·min^-1, injection volume ass 1.5 mL ·min^-1, and the plasma flow rate ass 10 L ·min^-1, the relative standard deviation of measured IR titanium content was 1.07%, and the recoveries were 95%-105%. This detection method was fast, accurate and sensitive, and met the testing requirement of determining titanium content in IR.

关 键 词： 微波消解 电感耦合等离子体发射光谱 异戊橡胶 钛质量分数