peak area

It established a chromatographic fingerprint method for fast and simple identification of Hypericum japonicum Thumb based on the relative retention time and relative peak area.

根据色谱指纹图谱各个谱峰的相对保留时间值α和相对面积Sr对色谱指纹图谱进行分析对比研究，建立一个快速、简易鉴别田基黄样品的色谱指纹图谱分析方法。

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the characteristic peaks in chromatograms were identified by comparing mass data with literatures. hierarchical clustering analysis was performed by spss based on the relative peak area ( rpa) of identified peak to germacrone in 18 samples.

通过质谱数据与文献对照检识出主要特征峰成分，并根据主要特征成分对18个样品进行SPSS聚类分析。

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Gaussian peak area computation of NaI gamma spectrometry based on the eigenfunction

基于特征函数的NaIγ能谱高斯峰面积计算

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External calibration of peak area versus concentration was used in the determination.

采用外标法峰面积定量。

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Measurement of Absolute Neutron Flux Density by Peak Area Ratio Method

峰面积比法测量绝对热中子注量率

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From tanks-in-series model, the peak height of a response curve obtained from flow injection analysis is correlated with two terms, the peak area and the peak width at 25% of the height.

根据串联釜模型，流动注射分析响应曲线的峰高与峰面积、1/4峰高处的峰宽两个因素有关。

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The accuracy of net peak area calculated by linear function fitting method is discussed.

文中对于适应于微型计算机的线性函数拟合计算峰净面积方法的精度也进行了讨论。

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The linear relation between peak area and concentration of the amino acids were good.

峰面积与氨基酸浓度的线性关系良好.

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South ditch big-top peak , 2858 meters above sea level , Hirakawa for the peak area.

主峰南沟大顶,海拔2858米, 为平川区最高峰.

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Based on the NBS standard mass spectral data and by integrating peak area method, the main constituents of beany flavor ( hexanal, 1-hexanol, 2-hexenal, 2-pentylfuran) in each sample were quantified.

并以苯甲醇为内标，用峰面积归一化定量了几种对豆腥味有重大贡献化合物（正己醛、正己醇、2-己烯醛、2-戊基呋喃等）的相对含量。

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When feed is 3-18 μ m. the sample has a good linear relation with impurity peak area, and the main peak can be nicely separated from the impurity peak.

当进样量为3－18μg时，试样与杂质峰面积呈良好的线性关系，且主峰与杂质峰分离度好。

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Uranium isotopes and their daughters emit-rays and X-rays during the decay process, their peak area and relative efficiency can be calculated through spectrum analysis.

在衰变过程中，铀及其衰变子体放射出γ射线和特征X射线，通过能谱分析可以求出它们的峰面积和相对探测效率。

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