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Benzene and naphthalene showed an absorption band at 260¨C300 nm.
The absorption bands of anthracene and phenanthrene were composed of three fused benzene rings and appeared at 300¨C400 nm,
while those of pyrenes were composed of four fused
benzene rings and appeared above 400 nm.
2Â¥2009-05-13 10:39:33
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