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China develops direct test for rareearth impurities_我的网站

一 |     (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.                        。    (ECNS) -- The People's Government of Guangdong Province successfully issued 2.5 billion yuan ($350 million) of offshore RMB-denominated local government bonds in Macao, according to the Monetary Authority of Macao.    Bank of China Macau Branch acted as the sole global coordinator for the issuance, marking the sixth consecutive year since 2021 that the bank has served in this capacity for Guangdong's offshore bond issuances in Macao.    The bonds were offered in three tranches: 2-year Hengqin construction-themed bonds worth 500 million yuan with a 1.42% coupon; 3-year green bonds worth 1.5 billion yuan with a 1.46% coupon; and 5-year blue bonds worth 500 million yuan with a 1.57% coupon.    Investor demand was strong, with orders peaking at 23.2 billion yuan and an oversubscription rate of 9.28 times — a record for bond issuances in Macao. Buyers included investors from Portugal, Switzerland, Singapore, Malaysia, Thailand, Indonesia, Macao and Hong Kong.    Proceeds from the bonds will be used to support major infrastructure projects in the Guangdong-Macao In-depth Cooperation Zone in Hengqin, as well as green and blue development strategies in the Guangdong-Hong Kong-Macao Greater Bay Area.        (By Tang Yuxian)                    。

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