目前国内尚无再加工纤维及其制品中硫酸根离子的检测标准,拟铬酸钡比色法法检测再加工纤维及其制品中硫酸根离子的测定。此法检测限低、方法简便、可操作性强等优点,值得推广。 At present there is no re-processing of fiber and its products sulfate ion detection standards, barium chromate colorimetric detection of re-processed fibers and their products sulfate ion determination. This method low detection limit, the method is simple, easy to operate and other advantages, it is worth promoting.