查询词典 standard deviations

The method has been applied for the determination of Sb, Sb and H2O2 in the oxidized antimony white solution by hydrogen peroxide, and the relative standard deviations were 0.25%, 0.28%, 0.38% and the recoveries were 100.6%-102.5%, 97.5%-99.5%, 98.6%-99.1%, respectively.

方法用于过氧化氢氧化的锑白溶液中Sb，Sb和过氧化氢的测定，相对标准偏差分别为0.25%，0.28%和0.38%；回收率分别为100.6%~102.5%，97.5%~99.5%和

As the observation data accumulate, some data show deviations from the standard model, which may provide information about the circumburst environment , the radiation mechanisms of GRBs and their afterglows, etc..

然而随着观测数据的积累，出现了一些偏离标准模型的情况，它们对γ暴暴周环境、γ暴及其余辉的辐射机制等提供了重要信息。

A baseline separation of Sitafloxacin epimers was achieved with a background electrolyte of 10 mmol/L KH2PO4-K2HPO4 (pH 4.5), 10 mmol/L CuSO4, 20 mmol/L γ-CD and 10 mmol/L D-Phe. The linear range for Sitafloxacin was 32-400 mg/L (0.996). The relative standard deviations of migration time and peak area were less than 1.9% and 3.8% respectively.

实验结果表明，添加剂的种类和浓度是影响西他沙星手性分离的重要因素，只有当D-苯丙氨酸、铜离子和γ-环糊精同时存在并达到一定浓度时，西他沙星差向异构体在毛细管电泳中才具有良好的分离效果。

The company that carried out the analysis flagged all classrooms that showed a number of wrong-to-right erasures exceeding three standard deviations from the mean.

对于篡改数量超过平均值三倍标准差的教室，负责数据分析的公司将其全部标示了出来。

The average recoveries for lincomycin and clindamycin ranged from 80% to 110% in replicate sets of honey samples spiked with the drug concentrations of 1.0, 5.0 and 20.0 μg/kg, and the relative standard deviations were less than 8% for intra-day and 15% for inter-day determinations.

在1.0，5.0，20.0 μg/kg 3个添加水平，两种抗生素的平均回收率范围为80%～110%，日内测定结果的相对标准偏差小于8%，日间测定结果的相对标准偏差小于15%。

Phthalic acid esters are widely used in the many fields of industry. So many countries including China have come to pay attention to them and make up the codes for limiting the content in some products such as textile. By combining international codes, the thesis selects coating and textile that have close relative with people as objections. The research results are as follows:1. The thesis has established the textiles preparation method by a series of experimentations such as extraction solvent, extraction time, solid-phase extraction. The average recoveries of eleven phthalates are from 80.30% to 98.00%, and the relative standard deviations from 0.59% to 2.56%, the results show that this method is accurate and credible.2. The thesis set up the simultaneous determination of benzene, toluene, xylenes and phthalates in coatings.

邻苯二甲酸酯类化合物被广泛地应用在工业领域的各个方面，国际上已经开始重视邻苯二甲酸酯作为一种内分泌干扰素的危害性，对在一些产品中的用量作出了限制，但没有具体的分析测定方法，本论文结合国际法规选择了与人们生活密切相关的涂料和纺织品来研究其中邻苯二甲酸酯类环境激素的测定方法，研究内容如下：(1)通过对提取溶剂、提取方式、提取时间的选择实验以及固相萃取的一系列条件实验，首次建立了纺织品中测定邻苯二甲酸酯类环境激素的前处理方法，并对分析方法作了准确度、精密度验证。

Respective standard deviations, coefficients of variation, and average recovery were 0.18, 2.28%, and 99.09% for SYP-Z048, and 0.19, 0.59%, and 99.38% for thiram.

啶菌唑和福美双标准偏差分别为0.18和0.19，变异系数分别为2.28%和0.59%，平均回收率分别为99.09%和99.38%，线性相关系数分别为0.9896和0.9563。

ResultsThe average recoveries and relative standard deviations of pyramidon and caffeine were 98.58%,0.79%and 101.3%,0.86%,respectively.

结果氨基比林和咖啡因的平均回收率和相对标准偏差分别为98.58%，0.79%和101.3%，0.86%。

However, as lacking clear theoretical direction and standard working pattern, as well as essential basis of policies and law, there come many problems and deviations in land-reserve operating.

但是由于缺乏明确的理论指导和规范的运作模式，以及缺乏必要的政策和法律支持，城市土地储备经营中出现了诸多的问题和偏差。

As an example, the relative standard deviations of the intra-assay and inter-assay of polymyxin E1 on the plate number and peak area were less than 5%.

以多粘菌素E1为例，柱效和峰面积的日间及日内测定的相对标准偏差均小于5%。E1和E2在硫酸多粘菌素E药物中的含量分别为67%和32%。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。