月沙工具箱
现在位置:月沙工具箱 > 学习工具 > 英语单词大全

area normalization method是什么意思,area normalization method的意思翻译、用法、同义词、例句

输入单词

常用词典

  • 面积归一化法

  • 例句

  • The quantitative calculation is carried out by external standard and area normalization method.

    采用外标面积归一化法进行定量计算。

  • The relative retention was used as qualitative analysis, and the quantitative analysis was corrected area normalization method.

    定性方法为相对保留值法,定量方法为修正面积归一化法。

  • Hydrocarbons was separated with a packed - column coated with 25 % squalane at constant temperature, detected by using an FID, and quantified by area normalization method.

    烃类组分采用25% 角鲨烷填充色谱柱恒温分离,以氢火焰离子化检测器( FID)检测, 峰面积归一化法定量。

  • The quantitative determination of Mizolastine was performed with external standard method and the impurity limitation was area normalization method.

    含量测定采用外标法,杂质检查采用面积归一化法。

  • The relative contents in percentage were calculated with Area Normalization Method.

    面积归一化法计算相对含量。

  • The method use FID and count by area normalization method.

    该方法采用氢火焰离子化检测器(FID ),并用面积归一化法进行计算。

  • This method made use of hydrogen flame ionization detector(FID) and counted by area normalization method.

    该方法采用氢火焰离子化检测器,并用面积归一化法进行计算。

  • Methods The essential components were separated and identified by HSGC-MS. The mass fractions of the components were determined by area normalization method.

    方法用HSGC-MS技术分离和鉴定罗布麻叶中挥发性成分,并用峰面积归一化法测定各成分的质量分数。

  • The content of each constituents was determined by area normalization method.

    同时又应用气相色谱归一化法计算其各成分含量。

  • Area normalization method was adopted to quantify pentyl.

    戊烷的定量则采用面积归一法。

  • There are several different type of gas-oil wasdeterminated with a relative correction factor area normalization method.

    用标准气体结合相对重量校正因子并采用面积归一化法进行了定量。

  • Methods: The volatile oils was extracted by steam-stilling and was identified by GC-MS. Calculated the percentage composition of the volatile oils according to Peak area normalization method.

    方法:水蒸气蒸馏法提取挥发油,利用气相色谱-质谱联用(GC-MS)进行定性分析,按峰面积归一化法,求出挥发油中化学成分的百分含量。

  • The total ion current showed their percentages by area normalization method.

    以总离子流图归一化法测定其百分含量。

  • The relative contents of all those compounds identified in the essential oils were determined by peak area normalization method. And the major constituents of the volatile oil are 92.66%.

    用面积归一化法测定挥发油中各种成分的相对质量分数,占总峰面积的92.66%。

  • Methods The oils obtained were analyzed by GC-MS. The relative percentage contents of the constituents were determined by GC with area normalization method.

    方法采用气相色谱-质谱(GC-MS)联机分析,并用面积归一化法分别计算各组分的相对含量。

  • MethodsEssential oils were extracted from samples by steam distillation, The chemical constituents were determined by GC-MS with area normalization method.

    方法水蒸气蒸馏法提取挥发油后,采用气相色谱-质谱法分析,用峰面积归一法测定成分的相对含量。

  • Gas chromatography showed their percentages by area normalization method.

    以气相色谱归一化法测定其百分含量。

  • The measurement method was area normalization.

    定量方法:面积归一化法。

  • Results 11 components were identified, and the relative contents were determined by normalization method of area.

    方法采用气相色谱-质谱联用技术对样品进行分析鉴定,利用面积归一法测定其相对含量。

  • The relative content of each peak was detected by the normalization method of peak area.

    结果检出41个色谱峰,用峰面积归一化法得出色谱峰的相对含量;

  • The purity of DMF and impurities contained in DMF were determined by calibration area normalization, and a rapid and reliable method was established with better accuracy, precision and r.

    通过实验和理论计算,确立了各组分的相对质量校正因子,建立了测定DMF纯度及杂质含量的校正面积归一法。

  • Since the concentration range measured is very wide(0—100%), curve-fitting method is used for obtaining the correlation equation correlating sample's concentration and peak area normalization data.

    鉴于相平衡样品的浓度范围宽(0—100%),所以,定量采用曲线拟合法求得标样浓度与峰面积归一数据的关系方程。

  • 专业解析

    "Area normalization method"(面积归一化法)是数据分析中用于消除样本或区域尺寸差异影响的标准化技术,常见于环境科学、地理信息分析及统计学领域。该方法通过将不同区域的观测值除以其对应面积,将数据转换为单位面积下的可比数值,从而避免因研究范围大小不同导致的偏差。

    核心原理与应用

    1. 数学公式

      标准化计算可表示为:

      $$

      text{Normalized Value} = frac{text{Observed Value}}{text{Area}}

      $$

      例如,若区域A的污染物总量为500吨,面积为100平方公里,则单位面积浓度为5吨/平方公里(来源:《环境统计学基础》)。

    2. 典型场景

      • 环境监测:比较不同规模区域的污染密度,如大气颗粒物浓度(来源:联合国环境规划署技术报告)。
      • 遥感数据分析:统一卫星图像中不同像素区域的反射率数值(来源:《地理信息系统原理》)。
      • 经济指标对比:将GDP总量转换为单位面积经济产出,辅助区域发展评估(来源:世界银行经济分析方法指南)。

    技术优势

    该方法通过消除空间尺度影响,提升了跨区域数据的可比性,尤其适用于生态研究中的资源分布分析和城市规划中的土地利用效率评估(来源:美国国家生态分析中心白皮书)。

    网络扩展资料

    Area Normalization Method(面积归一化法)是一种常用于化学分析(如色谱分析)的定量计算方法,其核心是通过测量各成分的峰面积占总峰面积的比例来确定相对含量。以下是详细解释:

    1. 基本概念
      该方法假设所有组分的响应因子相同,通过计算单个峰面积占所有峰面积总百分比,得出各成分的相对含量。例如,在脂肪酸分析中,通过色谱峰面积的比例直接计算不同脂肪酸的百分比。

    2. 应用场景

      • 化学分析:常用于气相色谱(GC)或液相色谱(HPLC)中,快速估算混合物中各组分的相对含量。
      • 杂质检测:适用于粗略评估样品中的杂质含量,但对低浓度成分的精确度有限。
    3. 优缺点

      • 优点:操作简单,无需标准品,适合快速筛查。
      • 缺点:假设所有成分响应因子一致,实际中可能因检测器对不同成分的灵敏度差异导致误差。
    4. 与其他归一化方法的区别
      不同于机器学习中的“数据归一化”(如Min-Max标准化,用于消除量纲差异),面积归一化法专注于分析领域内成分比例的直观计算。

    该方法是一种简便的定量分析工具,适用于对精度要求不高的场景,但在需要高准确度时需结合其他校准方法。

    别人正在浏览的英文单词...

    【别人正在浏览】