定量測定
This is a quantitative determination of reducing sugars prior to and incubation of a flour suspension at 27℃ FOR 1 h.
這是一種将面粉懸浮在27℃條件下培養1小時之前和之後，對還原糖的定量測定的實驗。
Slices from the top, bottom, sides and bulk of each specimen were examined by methanol exchange, quantitative determination of coarse and fine aggregate and backscattered electron imaging in the SEM.
分别從每個樣條的頂部、底部、側面和本體取樣，通過甲醇交換，粗細集料的定量測定和在SEM中的背散射電子成像對試樣進行檢測。
The basic principle and method for qualitative and quantitative determination of glycerin by TG-DTA are reported.
報道了使用熱重-差熱分析法（TG-DTA） 聯用技術定性定量測定甘油的原理和方法。
This study provides a reliable and convenient test method for the quantitative determination of volatile components of solid materials.
本研究為固體材料中易揮發組分的定量測定提供了可靠、簡便的檢測手段。
Objective:The quantitative determination of bacterial endotoxin in metronidazole injection was introduced and its relative problems were discussed.
目的：介紹定量測定甲硝唑注射液中内毒素的方法并讨論相關問題。
The procedure and results of quantitative determination of partially hydrolyzed polyacrylamide (PHPA) in chemical flooding systems by size exclusion chromatography are described.
介紹了用分子排阻色譜技術定量測定化學驅油體系中的部分水解聚************（PHPA）的方法。
A novel agar diffusion bioassay method for quantitative determination of mildiomycin was established.
為定量測定米多黴素含量，建立了一種新型的生物檢定法。
The colour index of metallic minerals is ****** new progress in quantitative determination of modern mineralography.
金屬礦物顔色指數是近代礦相學中定量測定的新進展。
A sensitive and specific HPLC-MS/MS method was developed for the quantitative determination of folic acid and 5-methyltetrahydrofolic acid in human plasma.
為定量測定人血漿中葉酸及5-甲基四氫葉酸濃度，建立了利用HPLC-MS/MS聯用技術的分析方法。
Target testing factor analysis is employed to simultaneous qualitative identification and quantitative determination of Co, Ni, Cu in their mixture.
本文用目标檢測因子分析-吸光光度法研究了钴、鎳、銅三組分混合體系的定性鑒定和同時定量測定的方法。
The article reviews the qualitative and quantitative determination, microstructure, biochemistry and molecular biology technique with regard to lithiasis.
本文綜述結石定性和定量測定、微觀構造分析、生物化學和分子生物學技術及相關研究進展。
Solar Energy Fundamentals and Modelling Techniques presents the methods of quantitative determination of solar irradiation incident amount on a surface on the Earth.
本書提出了一項關于太陽對地球表面的太陽輻射量的定量測定的方法。
Qualitative and quantitative determination of Tianzhu white yak meat was done by GC-MS in order to analyze its fatty acid composition and functional characteristics of which.
為分析白牦牛肉的脂肪酸組成及功能特性，采用氣相色譜-質譜聯用儀（GC-MS）對甘肅天祝白牦牛肉進行定性定量測定，并與當地黃牛肉進行比較。
The Quantitative Determination Kit for Cancer Embryo Antigen(CEA) with ChemiLuminescent Immunoassay(CLIA).
癌胚抗原（CEA）定量測定試劑盒（化學發光法）。
The standard curve was used for quantitative determination.
以校準曲線法進行定量測定；
In this paper, a method for quantitative determination of spectral purity of X-ray tubes for diffraction analysis is presented.
本文提出了衍射分析用的X射線管譜線純度的定量測定方法。
The reference basis were provided for quantitative determination of different preparations containing Fructus Forsythiae.
為不同連翹制劑的定量測定提供了參考依據。
In this paper, a method for quantitative determination of spectral distributions of primary radiation from X-ray tubes for diffraction and X-ray fluorescent spectral analysis is presented.
本文提出了衍射或熒光分析用的X射線管原級X射線譜強度分布的定量測定方法。
Quantitative determination of the analytes were achieved by means of fluorescence detection.
分析物的定量測定采用熒光法進行。
Objective To evaluate the reliability of the dot gold immunofiltration assay (DGIFA) for quantitative determination of human chorionic gonadotropin (HCG) in serum or urine.
目的評價斑點金免疫滲濾試驗（DGIFA）定量測定血清和尿液人絨毛膜***************（HCG）的可靠性。
Objective: To establish the method of quantitative determination of liver metabolic function.
目的：建立臨床定量檢測肝代謝功能的方法及指标。
A stacking system based on moving reaction boundary(MRB) for stacking and quantitative determination of oxymatrine(OMT) in urine samples was developed.
采用建立在移動反應界面理論上的體系進行尿樣中氧化苦參堿的富集與定量檢測。
The quantitative determination of trace gas concentration is involved in the study of biological trace gas exchange, air pollution and medical diagnosis.
生物組織微量氣體交換研究、大氣污染監測和醫療診斷等領域都涉及到微量氣體的定量分析。
Objective:Quantitative determination of active ingre***nts quercetin of mongolian medicine Astern, which provide the data to the quality control.
目的：定量測定蒙藥材紫菀花的有效成分槲皮素，為質量控制提供數據。
Furthermore, on the basis of the chemical bond method a combination method was presented for the quantitative determination of ***lectric properties of materials with a similar crystal structure.
更進一步，基于晶體的化學鍵方法提出了一個組合方法用于定量确定具有相似晶體結構材料的介電性質。
A reversed phase HPLC method for quantitative determination of taxol in bark of Taxus Yunnanensis was established.
建立了雲南紅豆杉樹皮中紫杉醇的反相高效液相色譜定量分析方法。
|quantitative measurement;定量測定
"定量測定"（quantitative determination）是分析化學中的核心概念，指通過實驗方法精确測量樣品中特定成分（如元素、離子、化合物或基團）的絕對含量或相對比例的過程。其核心目标是獲得以數字形式表達的精确結果（如質量百分比、摩爾濃度、ppm等），而非僅僅識别物質種類（定性分析）。以下是詳細解釋：
核心定義與目的
定量測定旨在回答“有多少？”的問題。它涉及建立被測物含量與可觀測物理化學信號（如顔色強度、電流、質量變化、光譜吸收度）之間的數學關系，通過校準（如标準曲線）将信號值轉化為具體的濃度或質量數值。其結果是客觀、可量化的數據，用于質量控制、環境監測、臨床診斷、科學研究等領域。
與定性分析的區别
定量測定通常建立在定性分析的基礎上，需先明确目标分析物。
常用方法與原理
結果表達
定量結果需明确單位，常見形式包括：
報告時需注明不确定度或置信區間以體現結果的可靠性。
權威來源參考說明：
為符合原則，上述解釋融合了分析化學領域的共識性知識，其原理和方法描述參考了國際公認的标準組織出版物，如：
由于平台限制無法提供實時有效鍊接，建議通過訪問上述機構的官方網站或其官方出版物（如USP-NF, AOAC Official Methods of Analysis, EPA Methods）獲取最權威、詳細的原始信息和方法細節。
quantitative determination 的詳細解釋如下：
該詞組指通過科學方法對物質含量或數量進行精确測定的過程，常見于化學、生物學等自然科學領域。例如，檢測食品中某種元素的含量或藥物成分的濃度。
包括但不限于：
與qualitative determination（定性測定）不同，後者僅判斷物質是否存在，而定量測定需得出具體數值。
擴展說明：在科研中，定量測定需滿足精确度和靈敏度要求，例如通過 LOQ（定量限）指标評估檢測方法的最低可定量濃度。
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