There are some protein in nature rubber while no protein exists in poly(isoprene)rubber.Nature rubber was distinguished rapidly and accurately from poly(isoprene)rubber by IR spectrum of protein.

• 本文通过采用红外光谱法，利用蛋白质的红外吸收光谱特征，准确、快速地鉴定天然橡胶与合成聚异戊二烯橡胶。