赤外線(IR)吸収スペクトル測定 - kohka.ch.t ...

1 (IR) 2008/05/13M2 (IR) IR 1 ( ) (IR) 10410210-510-610-410-13x10-4cm3x10-3cm12 000cm-14000cm-1400cm-110cm-1 IR : 400 4000 cm-1 IR cm-1 : ( )IR - (FT-IR) (T , %) (absorbance)T = I / I0A = - log T = log (I0 / I)I0 : I : (cm-1)v 2 1(m1 +m2 )m1 m2[]k Lambert-Beer k : m1, m2 : : ( ) / 1/ KBr ATR( ) ATR IR KBr NaClKBr > 2500 cm-1> 600 cm-1> 350 cm-1> 230 cm-1 NaCl KBr KBr ( ) ( ) 1 2mg KBr( 200mg) KBr ATR ATR (Attenuated Total Reflection) dp ATR ATR ATR ATR IR ATR ATR 1.

2 ATR 2. ATR 1. 2. 3. 4. HORIBA FT-IR HORIBA FT-IR KBr ( ) ( ) (KBr ) T = I / I0A = - log T = log (I0 / I) = L A L(A: : L: ) KBr KBr+ KBr KBr+ KBr KBr+ KBr KBr+ ATR ( ) ATR A = - log T = log (I0 / I) dp A (1/ ( )) ATR (ATR ) ATR ATR