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alkanes
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以下为句子列表:
英文: Abstract: In order to obtain the retention indices of unknown components in gas chromatography, a method using retention indices and retention times of known components to calculate the dead time and retention times of the corresponding normal alkanes was

中文: 摘要:提出在部分组分已知的气相色谱灰色体系中,利用已知组分的保留指数和保留时间推算死时间和正构烷烃的保留时间,再计算未知组分保留时间的方法。       更详细...
英文: Chemical fossils (e.g. alkanes and porphyrins) are often the only evidence for life in rocks of PRECAMBRIAN age.

中文: 化学化石(烷烃和卟啉)是前寒武纪地层中生命存在的唯一证据。       更详细...
英文: The molecular structure of alkanes is described by anovel molecular subgraph coding method,recently developed in this laboratory.It has been shown that there exist very good quantitative structure property/function relationships (QSPR/QSFR) between the co

中文: 在拓扑不变量的基础上直接将子图分类、计数、编码,提出了一种新分子拓扑子图指数,已数字化的子图编码部分保持具体分子结构的直观信息。       更详细...
英文: The results showed that the estimation of the dead time and the retention times of the normal alkanes and the further prediction of the retention indices of unknown components were quite satisfactory when the number of the known components included in cal

中文: 结果显示,在已知组分不是太少的情况下,该方法计算的死时间和正构烷烃的保留时间与实验值吻合,预测的保留指数也有较高的精度。       更详细...
英文: GC - MS Analysis of n-Alkanes in Faecal of Sheep

中文: 绵羊粪便中的正构烷烃的GC-MS分析       更详细...
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