The color of Apatite is often due to the presence of rare earth elements. 磷灰石的顏色常取決於存在的稀土元素。
This method could determine many non-REE in enriched-europium mixture rare earth oxide at a time and it was a rapid method. 該方法能同時測定富銪混合稀土氧化物中多種非稀土元素的含量,提高了分析速度。