定量分析

Moreover, The taxol of zymolytic extraction is analyzed by Thin layer chromatography, High performance liquid chromatography, Micellar electrokinetic chromatography and MALDI-TOF.

并对发酵提取物内的紫杉醇用TLC、HPLC、毛细管电泳和MALDI—TOF进行了定性定量分析。

Pesticides were extracted from sample with ethyl acetate in an ultrasonic bath, then determined by gas chromatography-mass spectrometry operated in negative chemical ionization mode and quantified in selective ion monitoring mode, and ethion was used as an internal standard.

蔬菜水果样品用乙酸乙酯超声提取，以乙硫磷为内标物，采用GC-NCI-MS的选择离子监测方式进行定性和定量分析。9种有机磷农药的方法检测限为0.12～1.0 μg/kg。

The uron content was determined and the effects of pH value, temperature, reaction cycle and catalyst species on the Uron content were also discussed by FTIR quantitative analysis by uronizing urea-formaldehyde derivatives at the beginning of the reaction before the synthesis of UF resin.

采用在脲醛树脂合成初期对尿素－甲醛衍生物进行Uron化反应后，再进行UF树脂合成的技术方法，通过FTIR定量分析，研究了不同pH值、反应温度、反应时间及催化剂种类对尿素与甲醛成环化反应的Uron相对值的影响。

The system can simulate movement of vehicle, state of traffic accident and data detector. It can record every data including those immeasurable at fieldwork, which is the foundation of evaluating effect of thruway traffic accident.

在真实模拟车辆行驶状态的基础上，通过设置事故状态和数据探测器，可以全面记录车辆行驶过程中实际检测设备难以采集到的相关数据，从而为事故影响的定量分析莫定了良好的基础。

GO-FLOW methodology is employed to construct a quantitative analysis approach to evaluate the safety of lichee logistics systems.

借鉴系统可靠性工程理论，采用GO-FLOW法分析技术，建立一种评价荔枝及其他鲜活农产品物流安全风险的定量分析方法。

RS technology, the spatial distribution of soil erosion in the Huaihe river basin was analysed according to aviaries of land use and soil type by the Soil Erosion Dangerous Index given in this paper.

对流域不同土地利用条件、不同种类土壤条件下的土壤侵蚀的空间分布进行了定量分析，并提出土壤侵蚀危险综合指数(Soil Erosion Dangerous Index，SEDI)评价分析了流域分县土壤侵蚀强度的空间分布。

Baaed on the 50-year statistical data（ 1949 ～ 1998 ） on Huzhou City, the change processes and the regional differences of cultivated lands were analyzed and the relationship between cultivated land change and economic development quantified.

文章摘要：采用湖州市及所辖县市区50年统计数据，分析了湖州市耕地资源变化过程及区域差异，并定量分析了湖州市耕地资源变化与经济发展的关系，对不同经济发展水平耕地占用量进行了估算。

The article introduces a kind of quantitative analysis method, which is used in monitoring the residual concentration of corrosion inhibitor in gasfield brines.

介绍了一种用于监测油气井采输工艺常用缓蚀剂在气田产出水中残余浓度的定量分析方法。

For each kind of element, the value of vulnerability represents the price bulletining from the local authorities.

并针对不同风险元素给予其当地政府所公告的价值，来进行易致灾性之定量分析。

Methods: Using reverse transcription-polymerase chain reaction,cavies lung tissue Eotaxin mRNA expression were given semi-quantitative analysis.

采用逆转录-聚合酶链式反应法半定量分析哮喘豚鼠肺组织嗜酸性粒细胞趋化因子mRNA表达水平的变化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。