查询词典 Wavelength

The present studies developed a method of spectrophotometry for quantitative determination of the total concentration of Jasminum flavonoids. The result showed the optimal determination wavelength was 500nm.

研究确定了最佳检测波长为500nm，以芦丁为标准品，在100～800μg/mL范围内，浓度和吸光度呈良好的线性关系，回归方程为A=0.0008C+0.0248，相关系数r=0.9999，回收率在96.5％～105％之间。

For a gas medium, the levitation force is determined not only by the ratio of its density to sound speed, but also by the ratios of its wavelength to the geometric parameters of the levitator.

发现不同媒质中产生的最大悬浮力不仅取决于媒质密度与声速之比，还取决于该媒质的波长与悬浮器几何参数的相对大小。

The solution of is only dependent on the ratios of levitator parameters { Xi } to the wavelength l , namely,, where,{ Xi } represents a set of the geometric parameters.

的解仅依赖于悬浮器几何参数{ Xi }与波长 l 之比值，即，其中{ Xi }表示发射端和反射端几何参数的一个集合。

For a small displacement amplitude, linearize the problem and find the dispersion relation for long-wavelength vortex oscillations.

对小位移幅，将问题线性化并找出长波涡旋振荡的色散关系。

MethodsDetermination of flavonoids in lithocarpus polysachyus rehd leaves by three-wavelength spectrophotometry.

方法采用三波长分光光度法测定多穗柯叶中黄酮含量。

The detection wavelength was 236 nm. RESULTS Loganin had a good linearity (r=0.9998) in the range of 0.093~0.837 μg.

结果 马钱苷0.093~0.837μg与峰面积的线性关系良好(r=0.9998)；回收率为97.7%，RSD=1.4%(n=9)。

Some metallorganic complexes can emit fluorescence or phosphorescence when excited by light with suitable wavelength. Usually, the fluorescence and phosphorescence can be quenched by oxygen.

合成了13种金属有机络合物，从中筛选了两种性能优良的氧感应指示剂［Ru3］(ClO4)2和Pt。

Results:Metasilicic acid(H2SiO3) was determined at the wavelength of 350 nm,the col...

该方法简单、快速、灵敏，测定结果准确可靠，适合有或无亚铁离子存在的矿泉水中偏硅酸的测定；实用性强，无特殊条件的要求，基层和各级实验室都可参照测定。

Objective:To develop a method for determination of metasilicic acid(H2SiO3) in mineral water at the wavelength of 350 nm and study on the ferrous ion′s interference elimination.

目的：通过实验找出在波长350 nm处测定矿泉水中偏硅酸，建立消除亚铁离子干扰矿泉水中偏硅酸测定的分析方法。

F. Nees and their metabolites by HPLC, the mobile phase was acetonitrile-water (0.1% methanoic acid) for gradient elution, Column temperature was 25℃, flow rate was 1.0mL/min, the detection wavelength was at 254nm..

采用HPLC对穿心莲及其代谢产物进行研究，以乙腈-0.1%甲酸水进行梯度洗脱，柱温为25℃，流速为1.0mL/min，检测波长为254nm。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。