
面積歸一化法
The quantitative calculation is carried out by external standard and area normalization method.
采用外标面積歸一化法進行定量計算。
The relative retention was used as qualitative analysis, and the quantitative analysis was corrected area normalization method.
定性方法為相對保留值法,定量方法為修正面積歸一化法。
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.
烴類組分采用25% 角鲨烷填充色譜柱恒溫分離,以氫火焰離子化檢測器( FID)檢測, 峰面積歸一化法定量。
The quantitative determination of Mizolastine was performed with external standard method and the impurity limitation was area normalization method.
含量測定采用外标法,雜質檢查采用面積歸一化法。
The relative contents in percentage were calculated with Area Normalization Method.
面積歸一化法計算相對含量。
The method use FID and count by area normalization method.
該方法采用氫火焰離子化檢測器(FID ),并用面積歸一化法進行計算。
This method made use of hydrogen flame ionization detector(FID) and counted by area normalization method.
該方法采用氫火焰離子化檢測器,并用面積歸一化法進行計算。
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技術分離和鑒定羅布麻葉中揮發性成分,并用峰面積歸一化法測定各成分的質量分數。
The content of each constituents was determined by area normalization method.
同時又應用氣相色譜歸一化法計算其各成分含量。
Area normalization method was adopted to quantify pentyl.
戊烷的定量則采用面積歸一法。
There are several different type of gas-oil wasdeterminated with a relative correction factor area normalization method.
用标準氣體結合相對重量校正因子并采用面積歸一化法進行了定量。
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:水蒸氣蒸餾法提取揮發油,利用氣相色譜-質譜聯用(GC-MS)進行定性分析,按峰面積歸一化法,求出揮發油中化學成分的百分含量。
The total ion current showed their percentages by area normalization method.
以總離子流圖歸一化法測定其百分含量。
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%.
用面積歸一化法測定揮發油中各種成分的相對質量分數,占總峰面積的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.
方法采用氣相色譜-質譜(GC-MS)聯機分析,并用面積歸一化法分别計算各組分的相對含量。
MethodsEssential oils were extracted from samples by steam distillation, The chemical constituents were determined by GC-MS with area normalization method.
方法水蒸氣蒸餾法提取揮發油後,采用氣相色譜-質譜法分析,用峰面積歸一法測定成分的相對含量。
Gas chromatography showed their percentages by area normalization method.
以氣相色譜歸一化法測定其百分含量。
The measurement method was area normalization.
定量方法:面積歸一化法。
Results 11 components were identified, and the relative contents were determined by normalization method of area.
方法采用氣相色譜-質譜聯用技術對樣品進行分析鑒定,利用面積歸一法測定其相對含量。
The relative content of each peak was detected by the normalization method of peak area.
結果檢出41個色譜峰,用峰面積歸一化法得出色譜峰的相對含量;
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.
通過實驗和理論計算,确立了各組分的相對質量校正因子,建立了測定DMF純度及雜質含量的校正面積歸一法。
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.
鑒于相平衡樣品的濃度範圍寬(0—100%),所以,定量采用曲線拟合法求得标樣濃度與峰面積歸一數據的關系方程。
"Area normalization method"(面積歸一化法)是數據分析中用于消除樣本或區域尺寸差異影響的标準化技術,常見于環境科學、地理信息分析及統計學領域。該方法通過将不同區域的觀測值除以其對應面積,将數據轉換為單位面積下的可比數值,從而避免因研究範圍大小不同導緻的偏差。
數學公式
标準化計算可表示為:
$$
text{Normalized Value} = frac{text{Observed Value}}{text{Area}}
$$
例如,若區域A的污染物總量為500噸,面積為100平方公裡,則單位面積濃度為5噸/平方公裡(來源:《環境統計學基礎》)。
典型場景
該方法通過消除空間尺度影響,提升了跨區域數據的可比性,尤其適用于生态研究中的資源分布分析和城市規劃中的土地利用效率評估(來源:美國國家生态分析中心白皮書)。
Area Normalization Method(面積歸一化法)是一種常用于化學分析(如色譜分析)的定量計算方法,其核心是通過測量各成分的峰面積占總峰面積的比例來确定相對含量。以下是詳細解釋:
基本概念
該方法假設所有組分的響應因子相同,通過計算單個峰面積占所有峰面積總百分比,得出各成分的相對含量。例如,在脂肪酸分析中,通過色譜峰面積的比例直接計算不同脂肪酸的百分比。
應用場景
優缺點
與其他歸一化方法的區别
不同于機器學習中的“數據歸一化”(如Min-Max标準化,用于消除量綱差異),面積歸一化法專注于分析領域内成分比例的直觀計算。
該方法是一種簡便的定量分析工具,適用于對精度要求不高的場景,但在需要高準确度時需結合其他校準方法。
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