ʻO kahi kānana UV Spectrum ākea ākea

I nā makahiki he ʻumi i hala iho nei, pono ka hoʻomaikaʻi ʻana i ka pale UVAe piʻi wikiwiki ana.

Loaʻa nā hopena maikaʻi ʻole o ka radiation UV, me ka sunburn, kiʻi-ʻelemakule a me ka maʻi ʻili. Hiki ke pale ʻia kēia mau hopena ma o ka pale ʻana mai i ke ʻano holoʻokoʻa o ka radiation UV, me ka UVA.

Ma ka ʻaoʻao ʻē aʻe aia kekahi ʻano e kaupalena i ka nui o nā "kemika" ma ka ʻili. ʻO kēia ke ʻano o ka abso UV maikaʻi loarberspono e loaʻa no ke koi hou o ka pale UV ākea.Sunsafe-BMTZ(Ua hoʻolālā ʻia ʻo Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine e hoʻokō i kēia koi. He kiʻi-paʻa, ʻaila-soluble, maikaʻi loa a uhi i ka laulā UVB a me UVA. I ka makahiki 2000, ua hoʻohui nā luna o ʻEulopa iā Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine i ka papa inoa maikaʻi o nā mea hoʻonaninani UV.

•UVA:Pono ʻelua hui ortho-OH no ka hoʻopau ʻana i ka ikehu ma o nā alahaka hydrogen intramolecular. No ka loaʻa ʻana o ka absorption ikaika i loko o ka UVA, pono e hoʻololi ʻia nā para-kūlana o nā ʻāpana phenyl ʻelua e O-alkyl, ka hopena i kahi bis-resorcinyl triazine chromophor.

•UVB:ʻO ke koena o ka hui phenyl i hoʻopili ʻia i ka triazine e alakaʻi ai i ka absorption UVB. Hiki ke hōʻike ʻia i ka loaʻa ʻana o ka hana "full spectrum" kiʻekiʻe loa me ka O-alkyl aia ma ka para-kūlana. Me ka ʻole o ka hoʻoheheʻe ʻana i nā mea pani, aneane hiki ʻole ke hoʻoheheʻe ʻia nā HPT i nā aila hoʻonaninani. Hōʻike lākou i nā waiwai maʻamau o nā puaʻa (e laʻa, nā helu heheʻe kiʻekiʻe). I mea e hoʻonui ai i ka solubility i nā ʻāpana aila, ua hoʻololi ʻia ke ʻano o ka kānana UV e like me ia.

Nā pōmaikaʻi:

Palena lā ākea ākea

Hoʻohālikelike loa me nā kānana UV ʻē aʻe

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