Linear decadic (\(a\),\(K\)) and Napierian absorption coefficients (\(\alpha \)) are equal to the corresponding @A00028@ divided by the optical path length through the sample. The molar absorption coefficients (decadic \(\varepsilon\), Napierian \(\kappa \)) are the linear absorption coefficients divided by the @A00295@.
Green Book, 2nd ed., p. 32 [Terms] [Book]
See also:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2169 [Terms] [Paper]
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2226 [Terms] [Paper]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 959 [Terms] [Paper]