定量测定
This is a quantitative determination of reducing sugars prior to and incubation of a flour suspension at 27℃ FOR 1 h.
这是一种将面粉悬浮在27℃条件下培养1小时之前和之后，对还原糖的定量测定的实验。
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.
分别从每个样条的顶部、底部、侧面和本体取样，通过甲醇交换，粗细集料的定量测定和在SEM中的背散射电子成像对试样进行检测。
The basic principle and method for qualitative and quantitative determination of glycerin by TG-DTA are reported.
报道了使用热重-差热分析法（TG-DTA） 联用技术定性定量测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.
本研究为固体材料中易挥发组分的定量测定提供了可靠、简便的检测手段。
Objective:The quantitative determination of bacterial endotoxin in metronidazole injection was introduced and its relative problems were discussed.
目的：介绍定量测定甲硝唑注射液中内毒素的方法并讨论相关问题。
The procedure and results of quantitative determination of partially hydrolyzed polyacrylamide (PHPA) in chemical flooding systems by size exclusion chromatography are described.
介绍了用分子排阻色谱技术定量测定化学驱油体系中的部分水解聚************（PHPA）的方法。
A novel agar diffusion bioassay method for quantitative determination of mildiomycin was established.
为定量测定米多霉素含量，建立了一种新型的生物检定法。
The colour index of metallic minerals is ****** new progress in quantitative determination of modern mineralography.
金属矿物颜色指数是近代矿相学中定量测定的新进展。
A sensitive and specific HPLC-MS/MS method was developed for the quantitative determination of folic acid and 5-methyltetrahydrofolic acid in human plasma.
为定量测定人血浆中叶酸及5-甲基四氢叶酸浓度，建立了利用HPLC-MS/MS联用技术的分析方法。
Target testing factor analysis is employed to simultaneous qualitative identification and quantitative determination of Co, Ni, Cu in their mixture.
本文用目标检测因子分析-吸光光度法研究了钴、镍、铜三组分混合体系的定性鉴定和同时定量测定的方法。
The article reviews the qualitative and quantitative determination, microstructure, biochemistry and molecular biology technique with regard to lithiasis.
本文综述结石定性和定量测定、微观构造分析、生物化学和分子生物学技术及相关研究进展。
Solar Energy Fundamentals and Modelling Techniques presents the methods of quantitative determination of solar irradiation incident amount on a surface on the Earth.
本书提出了一项关于太阳对地球表面的太阳辐射量的定量测定的方法。
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.
为分析白牦牛肉的脂肪酸组成及功能特性，采用气相色谱-质谱联用仪（GC-MS）对甘肃天祝白牦牛肉进行定性定量测定，并与当地黄牛肉进行比较。
The Quantitative Determination Kit for Cancer Embryo Antigen(CEA) with ChemiLuminescent Immunoassay(CLIA).
癌胚抗原（CEA）定量测定试剂盒（化学发光法）。
The standard curve was used for quantitative determination.
以校准曲线法进行定量测定；
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射线管谱线纯度的定量测定方法。
The reference basis were provided for quantitative determination of different preparations containing Fructus Forsythiae.
为不同连翘制剂的定量测定提供了参考依据。
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.
本文提出了衍射或荧光分析用的X射线管原级X射线谱强度分布的定量测定方法。
Quantitative determination of the analytes were achieved by means of fluorescence detection.
分析物的定量测定采用荧光法进行。
Objective To evaluate the reliability of the dot gold immunofiltration assay (DGIFA) for quantitative determination of human chorionic gonadotropin (HCG) in serum or urine.
目的评价斑点金免疫渗滤试验（DGIFA）定量测定血清和尿液人绒毛膜***************（HCG）的可靠性。
Objective: To establish the method of quantitative determination of liver metabolic function.
目的：建立临床定量检测肝代谢功能的方法及指标。
A stacking system based on moving reaction boundary(MRB) for stacking and quantitative determination of oxymatrine(OMT) in urine samples was developed.
采用建立在移动反应界面理论上的体系进行尿样中氧化苦参碱的富集与定量检测。
The quantitative determination of trace gas concentration is involved in the study of biological trace gas exchange, air pollution and medical diagnosis.
生物组织微量气体交换研究、大气污染监测和医疗诊断等领域都涉及到微量气体的定量分析。
Objective:Quantitative determination of active ingre***nts quercetin of mongolian medicine Astern, which provide the data to the quality control.
目的：定量测定蒙药材紫菀花的有效成分槲皮素，为质量控制提供数据。
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.
更进一步，基于晶体的化学键方法提出了一个组合方法用于定量确定具有相似晶体结构材料的介电性质。
A reversed phase HPLC method for quantitative determination of taxol in bark of Taxus Yunnanensis was established.
建立了云南红豆杉树皮中紫杉醇的反相高效液相色谱定量分析方法。
|quantitative measurement;定量测定
"定量测定"（quantitative determination）是分析化学中的核心概念，指通过实验方法精确测量样品中特定成分（如元素、离子、化合物或基团）的绝对含量或相对比例的过程。其核心目标是获得以数字形式表达的精确结果（如质量百分比、摩尔浓度、ppm等），而非仅仅识别物质种类（定性分析）。以下是详细解释：
核心定义与目的
定量测定旨在回答“有多少？”的问题。它涉及建立被测物含量与可观测物理化学信号（如颜色强度、电流、质量变化、光谱吸收度）之间的数学关系，通过校准（如标准曲线）将信号值转化为具体的浓度或质量数值。其结果是客观、可量化的数据，用于质量控制、环境监测、临床诊断、科学研究等领域。
与定性分析的区别
定量测定通常建立在定性分析的基础上，需先明确目标分析物。
常用方法与原理
结果表达
定量结果需明确单位，常见形式包括：
报告时需注明不确定度或置信区间以体现结果的可靠性。
权威来源参考说明：
为符合原则，上述解释融合了分析化学领域的共识性知识，其原理和方法描述参考了国际公认的标准组织出版物，如：
由于平台限制无法提供实时有效链接，建议通过访问上述机构的官方网站或其官方出版物（如USP-NF, AOAC Official Methods of Analysis, EPA Methods）获取最权威、详细的原始信息和方法细节。
quantitative determination 的详细解释如下：
该词组指通过科学方法对物质含量或数量进行精确测定的过程，常见于化学、生物学等自然科学领域。例如，检测食品中某种元素的含量或药物成分的浓度。
包括但不限于：
与qualitative determination（定性测定）不同，后者仅判断物质是否存在，而定量测定需得出具体数值。
扩展说明：在科研中，定量测定需满足精确度和灵敏度要求，例如通过 LOQ（定量限）指标评估检测方法的最低可定量浓度。
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