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Simple and cost-effective methods for precise analysis of trace element abundances in geological materials with ICP-MS被引量：22
《Science Bulletin》2017年第4期277-289,共13页Shuo Chen Xiaohong Wang Yaoling Niu Pu Sun Meng Duan Yuanyuan Xiao Pengyuan Guo Hongmei Gong Guodong Wang Qiqi Xue 
supported by National Natural Science Foundation of China(41130314 and 41630968);Chinese Academy of Sciences Innovation Grant(Y42217101L);Qingdao National Laboratory for Marine Science and Technology(2015ASKJ03);Marine Geological Process and Environment(U1606401)
Inductively coupled plasma mass spectrometry （ICP-MS） is the most commonly used technique to deter- mine the abundances of trace elements in a wide range of geological materials. However, incomplete sample digestion...
关键词：Inductively coupled plasma mass spectrometry High-pressure digestion Oxide and hydroxide interferences Instrumental drift Correction methods Trace elements 
The estimation method of GPS instrumental biases被引量：2
《Chinese Science Bulletin》2001年第3期204-207,共4页CHANG Qing ZHANG Donghe XIAO Zuo ZHANG Qishan 
This work was supported by the National Natural Science Foundation of China (Grant Nos. 49874041 and 49990454).
A model of estimating the global positioning system (GPS) instrumental biases and the methods to calculate the relative instrumental biases of satellite and receiver are presented. The calculated results of GPS instru...
关键词：GPS INSTRUMENTAL biases TEC ionosphere. 
STUDY ON PROPERTIES OF HIGH TEMPERATURE KINETICS OF TiCl_4
《Chinese Science Bulletin》1988年第6期478-483,共6页崔季平 范秉诚 
Project supported by the National Natural Science Foundation of China
Ⅰ. INTRODUCTION Titanium tetrachloride （TiCl） is widely used in chemical industry. Special attention has been paid to the oxidation method in producing titanium white （TiO2） from TiCl4 vapor phase. Since the mole...
关键词：TETRACHLORIDE titanium producing KINETICS relaxation INSTRUMENTAL ULTRAVIOLET HYDROCARBON saturated INORGANIC 
ELEMENTAL ABUNDANCES OF NINGQIANG CHONDRITE
《Chinese Science Bulletin》1986年第2期111-114,共4页柴之芳 毛雪瑛 马淑兰 王思潮 
Ⅰ. INTRODUCTION China, with a vast territory and a very large population, has a favorable chance to search for meteorites and to observe their fall. According to the latest statistics, about 80 meteorites have been c...
关键词：favorable CHANCE belongs TERRITORY IRRADIATION PRELIMINARY agate grateful INSTRUMENTAL implies 
A COMPUTERIZED CHEMICAL STRUCTURE CLASSIFICATION OF ALIPHATIC COMPOUNDS BY MASS SPECTROMETRY
《Chinese Science Bulletin》1985年第9期1171-1174,共4页朱大模 王加宁 关德俶 
Ⅰ. INTRODUCTION Mass spectrometry is one of the important instrumental methods to elucidate the structure of organic compounds. Difficulties crop up as the structure of complicated polyfunctional molecule is to be el...
关键词：INSTRUMENTAL INTERPRETATION elucidated concerned belongs MISTAKE MAYBE retrieval 二峨 struc 
RARE EARTH ELEMENT GEOCHEMISTRY OF BASALTS AND THEIR ULTRAMAFIC INCLUSIONS FROM DAMAPING,WANQUAN COUNTY,CHINA
《Chinese Science Bulletin》1983年第6期792-797,共6页从柏林 张儒瑗 杨瑞英 罗世华 郭应焕 黄忠祥 赵珍兰 江泳 冯锡章 
The Damaping basalts are part of Hanoba basalt plateau covering an area of 1700 km^2 from Congli to Shangyi counties, northern Hebei Province. The basalts are of Late Tertiary period. The Damaping basalt is particular...
关键词：BASALT plateau GEOCHEMICAL MANTLE abundant INSTRUMENTAL melting elsewhere covering Tertiary 
UNIFIED LAW OF MOTION OF LITHOSPHERIC PLATES
《Chinese Science Bulletin》1982年第4期427-428,共2页谈镐生 关德相 
The law of plate motion is instrumental to the understanding of driving mechanism of lithospherie plates, a problem which has long occupied the attention of the geophysicists. In [1] and [2], attempts were made to sta...
关键词：INSTRUMENTAL meaningful TRENCH ocean length CONTINENTAL tentative CORRELATE statistically YIELDING 
PREPARATION OF SOME REFERENCE SAMPLES OF LITHIUM ISOTOPES
《Chinese Science Bulletin》1981年第10期897-900,共4页张青莲 王光辉 庄亚辉 
Reference samples of lithium isotopes can be prepared by mixing pure materials with moderately high content of either isotope to form an intermediate sample. Through mass spectrometric determination of the ratio R(7/6...
关键词：ITERATION correction INSTRUMENTAL lithium moderate ISOTOPES ISOTOPIC readily ABUNDANCE BOTTLE 
THE JOINT CORRECTIONS OF RADIO TIME SIGNALS IN CHINA
《Chinese Science Bulletin》1966年第9期392-394,共3页叶叔华 吴守贤 
Accurate universal time is essential to longitude determination and is also widely used for practical purposes. The work of universal time service is generally divided into two steps: (i) transmission of precise radio...
关键词：universal preliminary correction RADIO LONGITUDE INSTRUMENTAL STEPS keeping PEKING institutions 
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