英文:ultraviolet lamp 紫外灯是一类可以产生有效范围较大的紫外光的光源。其实在较一般光源中也往往有紫外线,太阳是最显著的。就一般钨灯来说,也在玻璃透射紫外的可能范围内有约至320nm的近紫外光,如果用石英灯泡,还可远些。用氢灯或氙灯可得更远些紫外光,适用于400~190nm范围。此外还有氦灯、氪灯等。
组织捣碎机(匀浆器,破碎机,分散器)(BLENDER) 紫外灯(UV lamps) UVP分子杂交箱(Hybridization Ovens) ,上海,丁香通...
基于116个网页-相关网页
The mutation conditions:the distance is 28 cm,the time of irradiation is 60s with 30W ultraviolet lamp,the concentration of lithium chloide solution was 0.8%.
确定复合诱变条件为:紫外线照射用30W紫外灯,距离为28cm,照射时间为60s,EMS浓度为0.8%。
参考来源 - 米曲霉菌株的诱变选育及其制剂的应用研究·2,447,543篇论文数据,部分数据来源于NoteExpress
利用紫外灯显然更快,更容易也更精准。
但是使用苍蝇纸和紫外灯。
我们有一个紫外灯在这里,波长集中在254纳米处。
We have a UV lamp right here, which is centered at a wavelength of 254 nanometers.
So, ideally what we did see was, in fact, it does have enough energy with the UV lamp, it wasn't a dramatic shift you saw because we didn't start very high and then it went to that stuck point.
所以,理想上我们所看到的,事实上,紫外灯没有足够的能力,因为我们没有从非常高开始,所以它没有一个特别显著的移动,然后它又回到了黏着点。
We have a UV lamp right here, which is centered at a wavelength of 254 nanometers.
我们有一个紫外灯在这里,波长集中在254纳米处。
So if we think about the work function for zinc, and the work function for zinc is 6.9 times 10 to the -19 joules, do we expect that when we shine our UV light on the zinc, we'll be able to eject electrons?
如果我们考虑锌的功函数,它是6,9乘以10的-19次方焦耳,我们是否可以预测当,用紫外灯照射锌时,我们可以射出电子呢?
应用推荐