标准测定

A comparison of three chemical analytical methods-gravimetric method of barbituric acid, hydroxylamine hydrochloride method and bro-mide-bromate method-for determination of furfural content was studied.

测定糠醛含量的方法很多，日前同际标准化组织和各国的糠醛标准检验方法均采用化学法，成品糠醛内含有各种微量的有机杂质，据报道。

Baseline separation of eight kinds of LCFAs (dodecanoic acid, tetradecanoic acid, palmitic acid, oleic acid, stearic acid, eicosanic acid, erudcic acid, behenic acid) was achieved within 2 min with high resolution performance.

建立了利用短的微径色谱柱直接测定食用油中未衍生化长链脂肪酸的快速气相色谱方法。C12~C22脂肪酸在2 min之内实现基线分离，定量标准曲线的相关系数大于0.988，最低检测限（S/N=3）为2.80~9.60 mg/L，回收率为

With haematoxylin as the standard, the determining method of content of total hydroxybenzene in Caesalpinia Sappan L. was established by spectrophotometry.

首先以苏木精为标准物，建立了分光光度法测定总酚含量的分析方法，回归方程为C=10.2569A-0.07901，相关系数为0.9999。

Objective:To determine the content of ginsenoside Re in Anti fatigue Capsulae by TLC scanning.

目的 ：采用薄层扫描法对抗疲劳胶囊中的总皂苷(以人参皂苷 Re为标准)进行含量测定。

After two weeks take the blood serum through centrifugalization the blood obtained from mice,and determine the antibody production level in serum with ELISA compared with standard serum.

采用决明子20%水煎提取液分别给小鼠进行口服灌胃及腹腔内注射，同时设立对照组，采用生理盐水分别给小鼠进行口服灌胃及腹腔内注射。2周后取小鼠血离心后取血清，用ELISA法测定血清中抗体产生的水平，并用标准血清进行对照。

The determination method and fingerprints method can be use to control the quality of the volatile oil from Chenopodium ambrosioides L..

所建立的挥发油含量测定方法和指纹图谱方法可作为土荆芥油内在质量控制的标准。

The chloric acid digestion method was used in the study on making urinary iodine internal quality samples.

本文根据最近卫生部碘缺乏病专家咨询组提供的尿碘测定标准方法进行了尿碘室内质控样的制备，并对研制方法中有关问题进行了探讨。

Experimental results showed that the relative average error of the proposed method, the hydrazine hydrate gravimetry and the ammonium chloroplatinate gravimetry is -0.14%~+0.13%,-0.21%~+0.21% and -0.13%~+0.14%, respectively, and the relative standard deviation of three methods is 0.05%~0.08%, 0.11%~0.14% and 0.08%~0.09%, respectively, for Pt content from 37% to 65%. Therefore, the accuracy and precision of the proposed method are almost the same with hydrazine hydrate gravimetry, and are a little better than ammonium chloroplatinate gravimetry. But it is rapid, economic, secure, easy to operate and environmental friendly.

结果表明：测定37%~65%的Pt含量，本法、氯铂酸氨重量法、水合肼还原重量法的相对平均误差分别为-0.14%~+0.13%、-0.21%~+0.21%、-0.13%~+0.14%，相对标准偏差分别为0.05%~0.08%、0.11%~0.14%、0.08%~0.09%，故本法的准确度和精密度与水合肼还原重量法的基本一致，较氯铂酸氨重量法的略好；但本法消解快速、节能、安全，操作简便，对环境污染程度小，适宜推广运用。

The steroids of cholest 4 ene 3 one and cholestane 3,6 dion in Yisheng Capsules were determined by capillary gas chromatography. The results provide a reference to work out its quality standard.

采用毛细管气相色谱法测定了益肾胶囊中胆甾-4-烯-3-酮、胆甾-3，6-二酮的含量，为该制剂制度质量标准提供了参考依据。

Objective To establish a HPLC method of determining chrysin and baicalein in Senmen Oroxyli.

目的 建立木蝴蝶中黄芩素和白杨素的含量测定方法，为木蝴蝶的质量标准研究提供参考。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。