查询词典 Ultraviolet

The main intermediates were detected during decomposition,such as acetic acid,oxalic acid,malonic acid,phenol,3-hydroxyhypnone,naphthalene,benzene sulfonic acid,phthalic acid,β-naphthalene etc . by ultraviolet-visiblespectroscopy,ion chromatographand gas chromatograph coupled with mass spectrophotometertechniques.The possible degradation pathway of Acid Orange Ⅱ was also speculated,that was,hydroxyl radical reacted with the azo linkage-bearing carbon of naphthol-ring,and the C—N cleaved,the azo-dye decolored and mineralized.

运用紫外光谱、离子色谱、色谱-质谱联用等方法，测定出酸性橙Ⅱ的主要降解产物有乙酸、乙二酸、丙二酸、苯酚、3-羟基苯乙酮、萘、苯磺酸、邻苯二甲酸、β-萘酚等，并依此推测酸性橙Ⅱ的降解机理，即羟基自由基攻击酸性橙Ⅱ分子上与萘环相连的C—N键，导致C—N键的断裂，进而染料脱色矿化。

O3/UV process is a kind of AOPs, which combined O3 with ultraviolet radiation, under the radiation of UV, O3 is accelerated its decompounding course remarkably, and generated the strong oxidant hydroxyl radicals in solution.

臭氧紫外光（O3/UV）法是将臭氧与紫外光辐射相结合的一种高级氧化技术。在紫外光的辐射下臭氧显著地加速了分解速率，在溶液中形成具有强氧化特性的羟基自由基。

OBJECTIVE To explore the method of disinfecting air in the consecutively occupied operating room without laminar flow equipment, and compare the effect of air disinfection between ultraviolet rays and air decontaminating system of independent unit.

目的比较紫外线灯照射和独立单元空气净化系统两种方法对接台手术室空气的消毒效果，探讨无层流装置手术间的接台手术室空气消毒方法。

The mutation and the screening of the original fungus were carried out by the ultraviolet radiation method to obtain a mutant species UV-A that can depredated the crude protein in the rape cake to 15.46%,which is 1.4 times that of the original fungus.

采用紫外照射法对原始菌株进行诱变和筛选，得到一株降解饼粕中粗蛋白能力较强的变异菌株UV -A ，能使饼粕中粗蛋白的含量降到15 。4 6 %，是原始菌株的1.4倍。

Extracted DNA by CTAB, in proportion to the additions of PVP and β-mercap toethanol to the extraction buffer were capable of preventing browning from taking place in the extraction, Tris-Phenol (Stabilized with 0.1M Tris, pH 8.0)/Chloroform/isoamyl alcohol were used to remove protein and impurity in the second extraction, during crude DNA used to Isopropanol DNA and deterged by DNA detergent, without using RNase remove RNA, we detected the quality and concentration of DNA respectively for normal leaves and drought stress leaves by Agarose gel electrophoresis of genomic DNA and ultraviolet spectrometry photo.

用20%聚乙二醇(polyethylene glycol，PEG6000)模拟干旱，采取CTAB提取缓冲液，按一定比例加入PVP和β-巯基乙醇，用Tris平衡酚－氯仿－异戊醇除去蛋白质及杂质，在粗提时用异丙醇沉淀DNA，并用DNA洗液（10mmol/L醋酸铵，75%乙醇）洗涤DNA，在纯化时用乙醇沉淀DNA，且没有加入RNase去除RNA的方法，分别提取2个品种正常和干旱胁迫的苹果属叶片总DNA，并对提取的DNA进行琼脂糖凝胶电泳和紫外分光光度计检测。

Methylimidazole in soy sauce was extracted with methylene chloride,diazotized to forms a red colored azo-compound with the highly absorbance at the wave length of 440nm and determined by ultraviolet-visible spectrometry.

酱油样品在层析柱中用二氯甲烷洗脱，经重氮化后在波长440nm处具有最大吸收，据此建立了紫外可见光谱法测定酱油中4-甲基咪唑的方法。

But it also says there is no evidence to support disinfecting toothbrushes in the microwave or with ultraviolet devices on the market.

但它也说，没有证据支持在微波炉或市面上销售的紫外线设备中对牙刷消毒。

No other gases would be present to prevent ultraviolet solar radiation dissociating water vapour at the top of the atomsphere.

没有其他的气体去阻止紫外太阳辐射离解大气层顶的水汽。

The total nitrogen was determined by ultraviolet spectrophotometer, and the absorbency needed to be emendated by A=A(subscript 220nm)-2A(subscript 275nm) The total phosphorus with sulfuric acid-ammonium stibium molybdate-ascorbic acid as the developer was determined by spectrophotometer at 700-720nm wave length.

用紫外分光光度法测定总氮，并采用校正吸光度A=A(下标 220nm)-2A(下标 275nm)对其进行定量；用钼－锑－抗作显色剂，在波长700~720nm下对总磷进行比色定量。

The CoFe2O4/TiO2 magnetic nano-photocatalysts has fairly good magnetic property. The X-ray diffraction, transmission electron microscopy and ultraviolet-visible technique were used to analyze the phase structure, size and spectrum response scope of the samples. The XRD indicated the anatase TiO2 was formed when TCF modified by plasma. The size of CoFe2O4 particles was about 20 nm. The diameter of CoFe2O4/TiO2 particles is in the range of 30~40 nm. So the shell of TiO2 enwraps closely around the core and the thickness is in the range of 10~20 nm.

运用VSM技术对样品磁性能进行研究，结果表明：等离子体修饰后的复合材料仍具有较高的饱和磁化强度，可在外加磁场作用下实现催化剂在水中的分离与回收；样品的XRD、TEM和UV-Vis分析测试结果表明：等离子体修饰后的复合材料有锐钛矿型TiO2存在；TEM谱图显示磁核CoFe2O4的平均粒径约为20 nm，TCF复合粒子的粒径约为30~40 nm，TiO2包覆层的厚度为10~20 nm。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。