查询词典 determination

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。

The determination of IL-6 level of serum and urine may be used as one of the important indexes for differential diagnosis of acute rejection from CsA toxicosis and ATN.The determination of IL-6 level of serum and urine may also be useful for differential diagnosis of acute rejection from infection.

血、尿IL-6水平的升高可作为判断肾移植急性排斥的指标之一；也可作为鉴别急性排斥反应与CsA中毒、ATN的重要参考指标；对鉴别急性排斥反应和感染具一定的参考价值。

Various test conditions and effect factors for determination of mercury by flow injection-atomic absorption spectrometry were discussed and a method for the determination of mercury in Tricholoma giganteum has been developed.

探讨了流动注射还原气化—冷原子吸收光谱法测定微量汞时的最佳条件，建立了大白口蘑中痕量汞的流动注射还原气化—冷原子吸收光谱分析方法。

Increasing observation accuracyand reducing the error of the measuring ship will improve the accuracy of orbit determination during Translunar orbit phase,and the reduced dynamic method and improvement of lunar gravity accuracy will benefit the accuracy of orbit determination during Misson Orbit phase.

在奔月阶段，提高观测量精度和减小测量船的点位误差将有助于提高定轨精度，而在环月阶段，采用减缩动力学方法和提高月球重力场精度将有助于提高定轨精度。

The principle and the mathematical model of reduced-dynamic precise orbit determination are discussed based on precise point positioning technique by zero-differenced dual-frequency P codes and epoch-wise differenced carrier phase data. Then the key issue in the reduced-dynamic POD, i. e. the pseudo stochastic pulses and their impact on orbit determination accuracy are analyzed.

论述了基于低轨卫星星载GPS双频观测值的精密单点定位技术的简化动力学定轨方法的数学模型，分析了简化动力学定轨中的关键问题―伪随机脉冲的设置问题及其对定轨精度的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。