查询词典 Wavelength

Sol–gel/diaminobenzoic acid hybrid materials were also generated to be used as the MALDI matrices for the analysis of oligonucleotides. It is because that DABAs have good molar absorptivity at wavelength of 337 nm. Furthermore, two amino functional groups attached to the aromatic ring in DABAs can also suppress the cation adductions of oligonucleotides and leave the protons to the oligonucleotides during MALDI-MS analysis. This matrix system can be used as an alternative for the analysis of oligonucleotides.

本论文也利用双胺基苯甲酸与溶胶凝胶混成产物当做MALDI基质来分析DNA分子，利用双胺基苯甲酸本身具有吸收雷射的特性，且其含胺之官能基可和钠、钾离子竞争DNA上磷酸根的负离子结合部位，因此可和DNA有较强的亲合力，而在脱附游离的过程中并可转移质子给磷酸根，可有效降低盐类的干扰，此一基质系统可取代传统MALDI基质混合胺盐的效果，适合用於DNA样品的分析。

In this article we determinated the adsorption rate of oil bleached by different adsorbents at 475nm wavelength.

本论文在475nm下测定了不同吸附剂对油中色素类物质的吸附情况。

Second, at the condition of pH≈9, the total fluorescence intensity of aesculin and aesculetin at wavelengthλex/λem=371nm/459nm was measured, and then the quantity of aesculin can be calculated.

然后在pH≈9时，选择荧光激发波长371nm，荧光发射波长459nm，测量二者总的荧光强度，进而测得秦皮乙素的含量。

NOTE: The distance between antinodes is one-HALF wavelength.

注意：两波腹间的距离为一个半波长。

OBJECTIVE:To establish the RP-HPLC method for determination of methyl hydroxybenzoate and ethyl hydroxybenzoate in oral liquid preparations METHODS:The Nova-Park C18 column(3 9mm×150mm,5μm)was used The mobile phase consisted of acetonitrile-water(25∶75)at a flow rate of 1ml/min,the detection wavelength was set at 254nm and the sensitivity was set at 0 01 AUFS RESULTS:The linear ranges of methyl hydroxybenzoate and ethyl hydroxybenzoate were 0 4 412～13 2 360μg/ml(r=0 9 999) and 0 6 672～20 0 160μg/m...

目的 ：建立内服液体制剂中羟苯甲酯和羟苯乙酯的反相高效液相色谱测定方法。方法：色谱柱：Nova -ParkC18 柱(3 9mm×150mm ，5μm)；流动相：乙腈-水(25∶75)；流速：1ml/min ；检测波长：254nm ；灵敏度：0 01AUFS。结果：羟苯甲酯浓度在0 4412～13 2360μg/ml范围内线性关系良好(r=0 9999)；羟苯乙酯浓度在0 6672～20 0160μg/ml范围内线性关系良好(r=0 9998)。结论：该方法简便、快速、准确，可用于医院制剂中防腐剂的检测。

The conditions was as follows: Maxima 820 workstation,Hypersil column ODSC_(18)(4.6mm×200mm 5μm),UV detective wavelength 247nm,Flow rate 1.0ml/min,sensitivity 0.01 AUFS Mobile phase is composed of acetonitrile,H_2O,methanol(45:55:1).By which the inerference of impurity may be avoided and there is a good linear relationship between concentration and peak area.

本文建立了体内外氟比洛芬样品的HPLC测定方法：色谱柱：4.6mm×200mm Hypersil ODSC_(18)(4.6mm×200mm 5μm，)紫外检测波长247nm；流动相为乙腈：水：甲醇=45：55：1，流速：1.0ml/min；柱温：室温；灵敏度：0.01AUFS，进样量：20μL，该法可将氟比洛芬与杂质分离，浓度与峰面积之间呈良好的线性关系，满足分析要求。

The correlation of peak wavelength and temperature of a blackbody radiator.

峰值波长与黑体辐射源之间的相互关系。

The experimental results of fluorescent characteristics of carbaryl pesticides show that the fluorescence wavelength range is 500-750nm, the spectral resolution is 10nm.

西维因农药的荧光特性测量结果表明，系统的荧光波长范围为500-750nm，光谱分辨率为10nm。

For the aqueous luminol solution, three absorption bands with maximum. adsorption wavelength λ max 220.7、294 4 and 351.5nm respectively have been detected, with the exception of a little hyperchromic effect, the absorption spectrum contour of the solution cavitated by an ultrasound with a frequency of 1.45 MHz has been certificated to be unchanged.

luminol水溶液的吸收光谱有3个吸收带，它们的最大吸收波长分别是220.7nm、294.4nm和351.4nm，超声空化作用后主要呈弱增色效应，但其吸收光谱的基本形状无明显变化。luminol-NaOH水溶液经超声空化作用后也有较弱的增色效应和减色效应，但不论是否经历超声空化作用，其吸收光谱都与luminol水溶液的吸收光谱相似。

The effective wavelength is the same with that of ZnS∶Mn colloids.

所采用的辐射波长及照射时间会对Mn2+的发射强度及激发光谱峰值移动产生影响。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。