A | (ECNS) -- Chinese researchers have developed a method that can directly and precisely detect trace rare-earth impurities in high-purity rare-earth materials, overcoming a long-standing challenge caused by matrix interference, CCTV News reported Monday. The breakthrough, led by a key laboratory under the State Administration for Market Regulation at Jiangxi University of Science and Technology, uses inductively coupled plasma tandem mass spectrometry (ICP-MS/MS). The technique eliminates the need for matrix separation, offering higher sensitivity, accuracy and faster testing. The team has also made advances in sample pretreatment and instrument calibration. The technologies are already widely used by rare-earth producers and testing institutions to improve quality control and testing efficiency. 
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该停车场设置46个小型车辆停车位，不仅能够满足周边小区居民的停车需求，也使市民公园的功能更加完善。
顺城区住建部门提醒，此停车场为便民免费停车场，车主应有序停放，并管护好停放的爱车，不要在停车场内长期停放不使用的车辆。
责任编辑：李丹。
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