Themethodologydescribedinparagraph2.3wasappliedtoall
thereferencematerialsandtothearcheologicalcopals,whether
internalorexternalsamples.ConcerningtheRamanresults,the
decompositionstependedupwithaltogether10Ramanbands,
whichwerepresentorabsentdependingonthematerial. Table1 is
a summaryofthe10Ramanbands,andindicatesthematerialsfor
whichtheyarepresent/absent.The10groupsofbandswere
definedwithanarbitrarystepof20cm−1. Eachgroupisconstituted
bythemajorvibrationalcontributionsofCHbondindifferent
functionalgroups,and/ordifferentstructuralenvironments.Bands
1,4,and5aremainlyrelatedtoCH2 groups;bands2,6,and7to
CH3 groupsandbands3and8toCHgroupsinrespectivelyaliphatic
andcyclicgroups.Finally,bands9and10arerelatedtoCHorCH2 in
aromaticorvinylgroups.Thepresenceorabsenceofbandsum-
marizedin Table1 is thusalreadyadiscriminatingcriterion
betweenmaterials,sinceitreflectstheCHregionmorphology.
Themethodologydescribedinparagraph2.3wasappliedtoall
thereferencematerialsandtothearcheologicalcopals ว่า
internalorexternalsamplesConcerningtheRamanresults การ
decompositionstependedupwithaltogether10Ramanbands,
whichwerepresentorabsentdependingonthematerial เป็น Table1
summaryofthe10Ramanbands, andindicatesthematerialsfor
whichtheyarepresent/ขาดThe10groupsofbandswere
definedwithanarbitrarystepof20cm−1 Eachgroupisconstituted
bythemajorvibrationalcontributionsofCHbondindifferent
functionalgroups และ / ordifferentstructuralenvironmentsวง
1, 4 กลุ่ม and5aremainlyrelatedtoCH2; bands2, 6, and7to
CH3 groupsandbands3and8toCHgroupsinrespectivelyaliphatic
andcyclicgroupsสุดท้าย bands9and10arerelatedtoCHorCH2 ใน
aromaticorvinylgroupsThepresenceorabsenceofbandsum-
marizedin Table1 เป็น thusalreadyadiscriminatingcriterion
betweenmaterials, sinceitreflectstheCHregionmorphology
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