AF 343 (Coumarin) X NHS ester，其中AF 343，代表一种染料。Coumarin，是一种香豆素类化合物，具有良好的荧光性质和生物活性。而X NHS ester，则代表着它的一种衍生物，即N-羟基琥珀酰亚胺酯，这一结构赋予了它与其他分子结合的能力。 在科研实验中 ...

Information on ultraviolet (UV) radiation is essential for our lives under the Australian sun. We have one of the highest levels of UV exposure and highest rates of skin cancer in the world. Sun ...

The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the ...

Ultraviolet (UV) radiation is a type of light. Sunlight has UV rays, along with other kinds of rays. Some light bulbs give off UV rays, too. UV light bulbs are used in tanning beds and lamps, some ...

Coumarin dyes emit in the green region of the spectrum ... However, there are dozens of laser dyes that can be used to span continuously the emission spectrum from the near ultraviolet to the near ...

After hours: September 27 at 6:01 PM EDT ...

Editorial note: This post may contain links to offers and services from which Allconnect receives a commission. The partners and associated compensation do not affect our editorial integrity. Read ...

Editorial note: This post may contain links to internet offers and services from which Allconnect receives a commission. Broadband partners and the associated compensation do not influence our ...

The Sydney UV forecast and sun protection times are now available in the MetEye Text Views. More information about changes to UV products. It is important for all Australians or visitors to Australia, ...

Internet service provider Spectrum announced changes Monday including increased minimum speeds and guaranteed pricing for up to three years with bundled services. The changes also include a pledge ...

Full-spectrum CBD contains all of the extracts naturally found in the cannabis plant, including very small amounts of THC, the psychoactive ingredient associated with the marijuana “high.” ...

In this weekly political show, national political anchor Errol Louis takes a look at developments from the campaign trail and dives into real-world issues motivating voters.