Objective To establish a high performance liquid chromatographic method for determination of 6-methyl coumarin in cosmetics.

1、

Absorption spectra of three novel coumarin sensitizer incorporate benzylidene cyclopentanone moiety were studied.

比较研究了三种含苄叉环戊酮基团的新型香豆素类光敏染料.

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2、

They added a small amount of the fluorescent dye coumarin to the emitter material tris ( 8-hydroxy-quinoline ) aluminum.

他们在发光材料三 ( –基口喹啉 ) 铝里,加入了少量的萤光染料香豆素.

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3、

Results: The recent progress of study on Coumarin of Angelicae dahuricae were displayed.

结果展示了中药白芷香豆素类成分的最新研究进展.

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4、

Coumarin and flavonids is the main component.

香豆素类与黄酮类为其主要活性成分.

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5、

Organic light emitting diodes ( OLED ) employing an Ir complex with coumarin ( C 6 ) and acetylacetone ( acac ) ligands Ir ( C 6 ) _ 2 ( acac ) are studied.

所研究的有机电致磷光发光器件 ( OLED ) 选用了一种新型金属铱的化合物Ir ( C6 ) 2 ( acac ),这种金属化合物由配位体香豆素C6和乙酰丙酮 ( acac ) 与金属铱化合形成.

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6、

Coumarins found in fruits and vegetables exhibit antimicrobial activity.

在水果和蔬菜中被发现的香豆素具有抗菌活性.

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7、

The group includes flavonoids, benzophenones, some coumarins, lignans, condensed tannins, and stilbenes.

这一组中包括黄酮类化合物, 二苯甲酮、一些香豆素、木质素、缩合单宁和芪.

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8、

Is the council right to be concerned, or is it overreacting?

市政委员会表示关切是合情合理呢，还是反应过激？

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9、

The Council answered those questions in the negative.

委员会对那些问题的答复是否定的。

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10、

The council does not support lengthening the school day to fit in other activities.

委员会不支持通过延长在校时间来插入其他活动。

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11、

After two late night sessions, the Security Council has failed to reach agreement.

在深夜召开两次会议后，安全理事会还是没有达成一致。

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12、

On 1 December the presidency of the Security Council automatically transfers from the US to Yemen.

12月1日，联合国安全理事会的轮值主席国职位自动地由美国移交给也门。

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13、

Nudism, the council decided, was doing the resort more harm than good.

委员会认定在休闲胜地的裸体行为弊大于利。

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14、

Independent candidates won the majority of seats on the local council.

无党派候选人在地方议会选举中赢得了多数席位。

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15、

Today's Security Council resolution will be a significant success for American diplomacy.

今天的安理会决议对于美国外交而言是一次重大的成功。

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16、

a member of the parochial church council

教区教堂理事会成员

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17、

She was a British Council scholar.

她是英国文化协会奖学金的获得者.

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18、

The Council of Ministers is the real power in the EEC.

部长理事会是欧洲经济共同体的真正权力机关.

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19、

The local council is responsible for the upkeep of roads.

地方理事会负责道路的保养.

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20、

The town council decided to pave the square before the Hall.

市议会决定把市政厅前的广场铺上石板.

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