214 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS I 4•130.0 M]OO.O •i•O.O L•130.O 2Z:(•n,o leOO.O lroO0.O l•l:]O.O IOlX].O IISO. I:]O Figure 8. Solvent-subtracted spectrum of a finished product containing ammonium lauryl sulfate. 4•1:1.0 M300.O •1M33 O L/'8130.O 2Z:(•rl O 1• O 1• O 1•1:]0 O 101:]0 O • OCl 7•0 nn Figure 9. Solvent-subtracted sodium lauryl ether sulfate raw material spectrum.
ANIONIC SURFACTANT QUANTITATION BY FTIR 215 i i i 4•0.0 •000.0 $400.0 L•00.O •00.0 1•00.0 1600.0 1•00.0 1000.0 •0.00 ?nnonn M•qv• Figure 10. Solvent-subtracted spectrum of a finished product containing sodium lauryl ether sulfate. •.0 4000,0 •1•0 o0 •00,0 181XI 0 16f:l:{.O i i i 1300.0 11XJO.O 8so.nn ?DO.DO Figure 11. Solvent-subtracted sodium lauryl diether sulfate raw material spectrum.
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