查询词典 determination

To establish gas chromatography for the determination of benzene series in the quality control samples.

目的 建立质控样品中苯系物的气相色谱测定方法。

All the indices met the demands of environmental quality standards of surface water and the method was suitable for the analysis and determination of benzene series in surface water.

各指标均符合地表水环境质量标准的要求，适合地表水中苯系物的分析测定。

The recovery rate of added water samples was from 85% to 115%. The range of the lowest detection limit was 0.08-0.21 μg/L. The correlation coefficient was more than 0.999 4. The relative standard deviations (n=6) were generally lower than 8.0% for 2 μg/L standard solution of benzene series through 6 repetitions of determination.

结果表明，水样的加标回收率在85%～115%，最低检测限在0.08～0.21 μg/L，相关系数大于0.999 4，浓度2 μg/L的苯系物标准溶液经重复6次测定，其相对标准偏差基本小于8.0%。

The trends of determination methods for benzene compounds in water were also predicted in this paper.

通过对这些方法的综述研究，对水中苯系物测定方法的发展趋势作展望。

To establish an ultraviolet spectrophotometry for the determination of the sodium benzoate in fruit and vegetable salt .

建立以紫外分光光度法测定果蔬盐中苯甲酸钠含量的方法。

Objective:To establish a principal component regression method for the determination of caffeine and sodium benzoate in annaka injection .

摘 要 目的：建立安钠咖注射液中苯甲酸钠与咖啡因的主成分回归测定法。

A method for determination of benzoic acid in milk products by HPLC was reported.

本文研究了利用高效液相色谱分离测定牛奶中的苯甲酸。

Objective To establish a method for determination of sorbic acid and benzoic acid in ham by HPLC.

目的 建立火腿肠食品中苯甲酸、山梨酸的高效液相色谱测定方法。

objective to establish a method for fast determination of benzoic acid,sorbic acid,saccharin sodium in food.

目的 建立一种快速测定食品中苯甲酸、山梨酸、糖精钠的高效液相色谱法。

Result: The results of expended uncertainty of determination of benzoic acid in food by HPLC was 3.2%.

结果：HPLC测定食品中山梨酸的相对扩展不确定度为3.2%。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。