Bromine content of brominated butyl rubber(BBR)was determined by 1H-nuclearmagnetic resonance(1H-NMR),wavelength-dispersive X-ray fluorescence spectrometry(XRF)and chemical titration respectively.

• 分别用1H-核磁共振(1H-NMR)法、X射线-荧光光谱(XRF)法和化学滴定法测定了溴化丁基橡胶(BBR)的溴含量。