比色法

Keywords Caffeine;Antipyrine;Sodium Salicylate;Satongfeng Injection;HPLC;Determination of content

咖啡因；安替比林；水杨酸钠；撒痛风注射液；高效液相色谱法；含量测定

The simulation results show that the denoising effects of the three methods are all superior to that o f Fourier transform, and the influence of colored noise can be eliminated effectively by bispectrum methods. That is very i mportant for reconstructing LoranˉC signal under the condition of small signalˉtoˉnoise ratio, and also lays the fou ndation for digital LoranˉC signal processing.

仿真分析结果表明，三种方法的去噪效果都优于传统的傅氏变换法，且双谱估计能够有效地去除色噪声的影响，对于小信噪比条件下的罗兰C信号的提取和恢复具有重要意义，也为复杂环境下对罗兰C信号的数字处理奠定了良好的基础。

The influences of the reaction temperature,re- action time and mass rat...

研究了醚化反应的温度和时间及正溴丁烷(n-C_4H_9Br)与二乙二醇单甲醚的摩尔比对DGBME收率的影响，用气相色谱法分析了产物含量，并用FT-IR和~1H NMR表征了产物结构。

The indirect determining method of phosgene in ambient air by reversed-phase high performance liquid chromatography was set up.

μm 为分析柱，甲醇-水(体积比为 70∶30 )为流动相，在 2 5 7nm波长处用紫外检测器检测 1，3 二苯基脲，建立了间接测定空气中光气的反相高效液相色谱法。

There are two methods to detect and quantitative analysis Neu5Ac, one is high performance liquid chromatography with the use of Aminex87H column, the other one is barbituric acid method.

对Neu5Ac的检测和定量也有两种方法，一种是利用Aminex87H酸性糖基柱，通过高效液相色谱测定；另一种是硫代巴比妥酸法测定。

Methods The plasma concentrations of gliclazide were determined by HPLC with solide-phase extraction in 18 healthy male volunteers after an oral dose of 80 mg standard or tested formulations in crossways.

18名健康受试者单剂量交叉口服格列齐特供试制剂和参比制剂80mg后，用固相萃取高效液相色谱法测定血浆中格列齐特的浓度。

Vindoline content showed a positive correlation with leaf width, plant height, whole-plant leaf weight, 100-leaf weight, petal diameter and leaf length; the positive correlation was significant for first lateral branch number and stem diameter (P.05) and notable for internodal distance.

本文利用反相高效液相色谱法检测了23种国内外长春花主栽品种的文多灵含量，对文多灵含量与品种的12个主要农艺性状(包括株高、节间距、茎直径、一级侧枝数、叶片长、叶片宽、叶片长宽比、百片叶重、全株叶片重、花瓣直径、种荚长度和种子数/荚)的相关性和通径进行了分析。

Using FFAP quartz glass capillary columm and adopting adequate carrier pressure and process,a gas chromatographic method was performed for the determination of fatty acids in the epiphyte s from the soil near the Yun-Gui altiplano jokul.

选用固定液为FFAP的石英玻璃毛细管柱，设置合适的载气柱前压、分流比及程序升温，采用气相色谱法测定了采自云贵高原雪山、雪线附近土壤中的真菌的脂肪酸组成。

The result indicates the best conditions are: when the solvent is water the weight of the water is 8 times than of the Lithocarpus polystachyus Rehd, the temperature of the water is 60℃, the period of the extraction is 60 min,then the content of dihydrocharcone can reach 5.26%....

结果表明，二氢查耳酮的最佳提取条件为：1∶8的料水比，在80℃温度提取60min，二氢查耳酮的提取率达5.26%。用高效液相色谱法检测，二氢查耳酮含量为98.37%。

The optimum technology of extracting flavonoids in polygonatum was studied by orthogonal test.

用正交试验法对玉竹中的黄酮类化合物的提取工艺进行了优选研究，采用正交表L16(4^5)，以提取时间、提取温度、提取次数、提取剂中乙醇含量以及料液比为因素，以总黄酮显色液的吸光度为指标进行试验。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。