量子产率
- 网络quantum yield;quantum efficiency
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人血清白蛋白和牛血清白蛋白荧光量子产率的测量
Fluorescence Quantum Yield of Human and Bovine Serum Albumin
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罗丹明B是常见的氧杂葸类染料,其具有摩尔吸光系数较大、激发波长较长和荧光量子产率高等优点。
Rhodamine B , the common xanthene dye , has the large molar extinction coefficient , long excitation wavelength and higher fluorescence quantum yield .
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这是提高C(60)荧光量子产率的新方法,并为构造以富勒烯为基础的发光材料提供了新思路。
This provides an approach to the observation of strong fluorescence of C60 and the great possibility of the fabrication of novel fullerene-based luminescent materials .
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水环境中石油烃类的TiO2光催化降解量子产率的测定
Quantum yields study of petroleum hydrocarbons by TiO_2 photodegradation in aquatic solution
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荧光量子产率φ与基态、第一激发单重态间的π电子能量差(Eg~π&Ee~π)存在着以下的关系:上述F。
, fluorescence quantum yield φ, and total n electronic energy difference between ground state and the first excited singlet state : vF .
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测定了盐酸普鲁卡因和对氨基苯甲酸的量子产率,讨论了盐酸普鲁卡因的相对荧光强度随pH值升高和放置时间的延长而增大的原因。
The reasons that the relative fluorescence intensity of procaine hydrochloride increases with a rise in pH and with standing for time are discussed .
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把反应速率常数和量子产率作为动力学常数,研究了石油烃类化合物的TiO2光催化氧化降解。
The reaction kinetics constants and quantum yields of petroleum hydrocarbons by TiO_2 photocatalytic oxidation were studied .
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根据XRD测量结果以及纳米晶的高发光量子产率,我们认为整个纳米晶的生长过程是外延生长的。
According to the X-ray diffraction results and the high quantum yields , we think the growth of shells was epitaxial .
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关于PDT光敏剂敏化效应光谱及其量子产率的研究
Studies on Sensitized Effect Properties and Quantum Yield of PDT Photosensitizer
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高量子产率水溶性CdTe量子点的制备与表征
Synthesis and characterization of high quantum yield CdTe quantum dots in aqueous phase
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采用Mn时,光引发和光分解的量子产率也很低。
The rate of conversion was counted using relative absorption area method . Quantum yields for photoinitiation and photodecomposition are also low with Mn .
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用LambertBeer定律和单线态氧的量子产率来计算各层组织中单线态氧的产生。
Calculate the produce of singlet oxygen in every tissue by the law of Lambert-Beer and quantum yields of singlet oxygen .
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以硫酸奎宁为参比,测量了SSA在不同波长下的荧光量子产率,在最大激发波长297nm处的荧光量子产率为054。
At the maximum excitation wavelength 297 nm , fluorescence quantum yield of SSA is 0.54 .
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报道了磺基水杨酸(SSA)的荧光光谱和荧光量子产率。
Fluorescence spectra and fluorescence quantum yield of sulfosalicylic acid ( SSA ) have been studied .
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同时,荧光量子产率有所增大,其热力学常数pKa有所降低。
Meanwhile their fluorescence quantum yield was higher , while the thermodynamic pKa value was lower .
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液体荧光测试研究表明:配体及相应配合物随共轭程度的增大,荧光发生红移,符合经典理论:研究了配体及配合物在不同溶剂中的荧光光谱:计算了量子产率和Stokes位移。
The fluorescent spectra and solvent effects of the compounds have been studied . The fluorescent yield and Stokes shift are also calculated .
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香豆素类化合物具有其荧光量子产率高,Stokes位移大、光稳定性好等优点。
Coumarin compounds have many advantages including high fluorescence quantum yield , large Stokes shift , excellent light stability , and so on .
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报道了曲通X-100(TX)水溶液的荧光光谱与荧光量子产率。
Fluorescence spectra and fluorescence quantum yield of triton X-100 ( TX ) aqueous solution are reported .
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Al(Ⅲ)-丹皮酚络合物的最大荧光激发和发射波长分别为296nm和455nm,荧光量子产率为0.053。
The fluorescence excitation and emission wavelengths of the Al (ⅲ) - paeonol complex were 296 nm and 455 nm , respectively . Fluorescence quantum yield of the complex was measured to be 0.053 .
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但是TiO2禁带较宽,量子产率低,并且难以分离、回收和再利用,这些严重的阻碍了TiO2光催化技术的应用。
However , TiO2 is a wide band gap semiconductor , so its quantum yield is low , and it is difficult to separate , recycle and reuse .
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结果表明,随着黄瓜体内LaCl3浓度的升高、其荧光量子产率、PSⅡ最大光化学效率、放氧活性和电子传递速率都明显降低。
Were studied . Results show that the fluorescence yield , maximal efficiency of PS II photochemistry , oxygen evolution and electron transport rate are decreased when LaCl_3 concentrations in cucumber are increased .
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单态氧量子产率为0.57,其对HL-60细胞具有良好的光灭活作用,提示CPD1是一种有发展前途的光动力疗法(PDT)光敏剂。
It is suggested that CPD 1 is a promising photosensitizer for photodynamic therapy ( PDT ) of cancer .
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对此种体系在π,π~和n,π~激发条件下光化学顺反异构化的量子产率、光稳态组成以及所在聚合物体系中的自由体积分布等的测定方法和原理进行了详细的介绍。
Measurement and evaluation principle and methodology of quantum yield , composition of photostationary state , free volume distribution of the polymer bulk and so on were introduced in detail for cis-trans photoisomerizations in such solid matrix under π, π or n ,π excitations .
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ANS分子相对量子产率明显增大,荧光分子运动受限,减弱分子之间的相互作用,减小了由于碰撞引起的猝灭,分子结构刚性增强。
Relative quantum yields obviously increase due to the limit of the ANS molecules motion in solid environment , and the decrease of collision quenching .
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卟啉和金属卟啉化合物具有高的荧光量子产率、大的Stokes位移、相对长的激发和发射波长,而被广泛应用于分子识别中。
Porphyrin and porphyrin metal compounds with high fluorescence quantum yield , large Stokes shift , the relative length of the excitation and emission wavelengths , and is widely used in molecular recognition .
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用Lambert-Beer定律和单态氧的量子产率来计算血管中的单态氧产量。
To calculate the production of singlet oxygen in vascular by the law of Lambert-Beer and quantum yields of singlet oxygen .
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研究了环丙沙星(ciprofloxacin,CIP)在不同pH条件下的荧光光谱、紫外吸收光谱和质子化作用,测量了CIP在中性条件下的荧光量子产率。
Fluorescence spectra , ultraviolet absorption spectra , and protonation of Ciprofloxacin ( CIP ) at different pH values have been studied . Fluorescence quantum yield of CIP under neutral condition has been measured .
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在众多纳米光催化材料中,TiO2因其氧化性强、稳定性好、廉价无毒等优点,成为最有发展前景的纳米光催化剂,但存在量子产率低、回收困难等不足。
Among all the nano-photocatalytic materials , TiO2 become a most promising photocatalyst for its strong oxidation activity , stability and nontoxic . However , TiO2 has two main disadvantages : low quantum yield and low photocatalytic activity .
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它们均具有绿、黄、橙到红色波长连续可调的荧光发射,高荧光量子产率,窄荧光峰半高宽,高光学稳定性和pH环境稳定性,以及低细胞毒性等优点。
Their emission can be tuned from green , yellow , orange till red . Meantime , these two quantum dots have many merits such as high fluorescence quantum yield , narrow full width of half maximum of fluorescence peak , high photo-and pH-stability and low cytotoxicity .
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牛血清白蛋白(BSA)和人血清白蛋白(HSA)是生化研究中常用的试剂,但文献报道的BSA和HSA的荧光量子产率数值不一。
Bovine serum albumen ( BSA ) and human serum albumen ( HSA ) are commonly used in biochemical studies . However , their fluorescence quantum yields reported in the literature are not coincident .