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mass spectrometry should be used in conjunction with the proposed gas chromatography work to obtain more accurate hydrocarbon characterization and to help identify the source of any petroleum hydrocarbons found in the sediment cores.
1. 质谱法应结合拟议的气相色谱法使用,以便更准确地阐明所含碳氢化合物特点和帮助查明沉淀物样芯中发现的任何石油碳氢化合物的来源。
the amount of work for sediment analyses should be increased to allow for gas chromatography/mass spectrometry analyses in addition to the proposed nickel and vanadium analyses for each of the sediment subsamples.
6. 分析沉积物的工作量应予以增加,以便除了拟议的对每个沉积物子标本进行镍钒法分析外进行气相色谱/质谱法分析。
:: for the third year in a row, cuba has not been able to purchase equipment for liquid chromatography coupled to mass spectrometry, which is essential for anti-doping control.
* 古巴连续第三年不能购买液相色谱耦合质谱仪,这对兴奋剂检测工作必不可少。
further progress has been made with the installation of the first accelerator mass spectrometry facility on the african continent at the ithemba laboratory for accelerator-based sciences (ithemba labs).
在ithemba加速器科学实验室(ithemba实验室),非洲大陆第一座加速器质谱设施的安装工作取得了更多的进展。
43. the attribute verification technique comprises a neutron multiplicity assay system integrated with a high resolution gamma ray spectrometry system, within a special environment that must prevent classified information from being transmitted or otherwise conveyed beyond its borders, while preventing any external signals from tampering with the operation of the system.
43. 属性核查技术包括中子重复计数分析系统和高分辨率伽马能谱测定系统,核查在特定环境下进行,以防止机密资料外泄,同时阻止任何外界信号干扰操作系统。
"analytical equipment for metal analysis (e.g. atomic adsorption spectrometry, inductively coupled axial plasma spectrometry) of acceptable accuracy, preferably with a limit of quantification (loq) five times lower than the lowest chronic ecotoxicity reference value; "
精度可以接受的金属分析设备(如原子吸收光谱仪、感应式偶合轴向等离子光谱仪),最低检测量(loq)最好低于最低慢性生态毒性参考值的五倍。