查询词典 quantitative determination

METHODS: A specific HPLC method for determination of whole blood concentration of parent CsA in AA patients receiving CsA was established and compared with nonspecificity PFPIA for determination of the summation of parent CsA and metabolites.

建立一种特异性测定再障患者服药后全血中CsA_的HPLC法。

Thus, the investigation of oscillographic determination in complex system and redox system is an important approach of improving the sensitivity of oscillographic determination and enlarging the application range of oscillographic analysis.

在上述研究中，配位体系和氧化还原体系中的示波测定方法研究是提高示波分析灵敏度、扩大示波分析应用范围的一条重要途径。

The physicochemical determination of rice taste is a method of scientifically analysis and determination of rice taste .

大米食品味的理化学测定，是对大米食味的科学分析和判定。

In addition, a pre-column derivatization HPLC method was applied to the determination of Astragaloside Ⅳ; the flavonoids was determined by full-range HPLC scanning; a colorimetric method was developed for the determination of flavonoids and saponins. Hierarchical cluster analysis was performed on three constituents of different Radix Astragali species, and its result was compared with those of traditional phytoecological identification and the pharmacological quality assessment.

本研究以比色法测定了黄芪中总皂苷的含量，以柱前衍生化高效液相色谱法测定了黄芪中黄芪甲苷的含量；以比色法测定了黄芪中总黄酮成分的含量，以反相高效液相色谱法测定了黄芪中毛蕊异黄酮和毛蕊异黄酮苷的含量；以黄芪中的黄芪甲苷、毛蕊异黄酮和毛蕊异黄酮苷为主要特征对不同品种的黄芪进行了系统聚类分析，并将聚类结果与传统生药学鉴定和药理质量评价结果进行了比较。

The test showed that the recovery yield of marked compound in desulfurized solution was 103.3%, it was indicated that impurity in the mixed system had smaller influence on determination, the method is more accurate in determination of picric acid in desulfurized solution.

经过对脱硫液进行加标回收试验表明，加标回收率为103.3%，说明混合体系中杂质对测定干扰小，该方法对测定脱硫液中苦味酸的浓度比较准确。

The reaction mechanism was studied and the proposed methods were applied to the determination of SOD activity.Second, baded on sodium terephthalate trapping HO, an automated spectrofluorimetry for determining HO with flow injection analysis was developed. It was applied to the anti-oxidation determination of maize pollen polysaccharose and natural foods.

一设计合成了两种用于超氧阴离子自由基识别检测的荧光探针——香草醛缩-8-氨基喹啉和2-吡啶甲醛苯并噻唑啉，用普通荧光法和流动注射荧光法对超氧阴离子自由基进行分析测定，研究了反应机理，并将其用于超氧阴离子自由基和超氧化物歧化酶活性的测定。

The determination of quercitin was performed on Century SIL C18 BDS (250 mm×4.6 mm, 5μm) column, using methanol-water-phosphoric acid (V:V:V=60.00:40.00:0.02) as mobile phase at a flow rate of 0.8mLmin^(-1) and UV detection at 360 nm. The determination of gallic acid was performed on Century SIL C18 BDS (250 mm×4.6 mm, 5μm) column, using acetonitrile-water-phosphoric acid (V:V:V=5.00:95.00:0.02) as mobile phase at a flow rate of 0.8mLmin^(-1) and UV detection at 272 nm.

槲皮素的测定条件为：Century SIL C18， BDS(250.0mm×4.6mm， 5μm)色谱柱，流动相为甲醇－水－磷酸（体积比为60.00：40.00：0.02），流速为0.8mLmin^(-1)，检测波长为360nm；没食子酸的测定条件为：Century SIL C18 BDS (250.0mm×4.6mm， 5μm)色谱柱，流动相为乙腈－水－磷酸（体积比为5.00：95.00：0.02），流速为0.80mLmin^(-1)，检测波长为272nm。

In part one, we prepared three ramification of pyrene nanoparticles by reprecipitation method under ultrasonic radiationand characterized with TEM.The determination of organic nanoparticles to DNA, NO2 -,and nucleic acids werestudied by using fluorescence. And some ultrasensitive determination of DNA, NO_2~-, and nucleic acids methods were proposed. The possible mechanism has been studied.

第一部分在超声辐射下用再沉淀的方法制备了几种芘的衍生物的纳米粒子荧光探针，并通过透射电镜进行了表征，并通过荧光法研究了它们分别与蛋白质、核酸以及NO_2~–的作用，建立了超灵敏的检测上述物质的方法，探讨了作用机理，并提出了合理的解释。

Based on the shortcomings of the COD determination method revised in National Standard, some improvement measures of the standard method, including improvement of slaking phrases, research of substitution catalysts and elimination of chlorine ion disturbance, are compared and discussed. Afterwards, some common substitution COD determination methods, such as correlation coefficient analysis method, electrochemistry analysis method, spectrophotometric analysis method and flow inject analysis method, are introduced.

在论述了国标中COD标准方法不足之处的基础上，本文就标准方法的众多改进措施分类进行了比较与探讨，包括消解方法的改进、替代催化剂的研究以及氯离子干扰的消除，然后介绍了相关系数法、电化学法、分光光度法和流动注射法等COD测定替代技术。

Objective: To establish a method for the determination of the content of Al2O3 determination in Smectite.

目的：建立蒙脱石散中三氧化二铝的含量测定方法。

There are two types of gold deposits in this area, namely altered rock type and quartz vein type.

本区金矿床包括两种类型：柴胡栏子金矿床为蚀变岩型金矿；莲花山和红花沟金矿床属石英脉型。

You were home and it was two weeks ago.

你回到了家里。当时是两周前。