Thus, wechosetoundertakePCAtreatmentsusingothervari-
ables:the4 fittingparameters(bandpositions P, fullwidthathalf
maximum W, area A, andprofile k) ofthe10bandsas40variables.
The referencematerialscanbeeasilyclusteredintogroups(Fig. 5):
oilsarefoundintheupperrightquadrantofthescoreplot,glues
withaPC1aroundzeroandwithanegative(−4) PC2.Theresinshave
howeveraparticularbehavior:diterpenicresinscanbeseparated
into3groups:Manilacopal,sandaracandKauriresininonegroup
(bottomleftquadrantofthescoreplot),colophonyandVenice
turpentine inasecondgroupinthe upperleftquadrantofthescore
plotand finally,inthesameareabutclusteredaswell,theAfrican
and/orMadagascarcopals.Triterpenicresinsarequitedispersedand
arealmostsorted:elemiisonthetoprightquadrantofthescore
plot;masticisinthebottomrightquadrantofthescoreplotbut
mixedwiththeshellacs.DammarandfrankincensearewithaPC1
aroundzeroandanegative(−3) PC2.Resinsseemtobegrouped
accordingtothetreespeciesfromwhichtheyexude.Indeed,
colophonyandVeniceturpentinederivebothfromPinaceaefamily
withmajorcomponentsabieticacidanditsdegradationproducts
andisopimaricacid [43]. SandaraccomesfromCupressaceaetrees
andManilacopalandKaurifromAraucariaceaespecies [44]. Despite
this difference,theyhavesameimportantcomponentsincommon,
suchascommunicacidandsandaracopimaricacid [36]. Finally,
AfricancopalsarefromtheLeguminosaeorFabaceaefamilywith
largeamountsofcopalicacidandozicacid [35].
ดังนั้น wechosetoundertakePCAtreatmentsusingothervari-
ables:the4 fittingparameters (bandpositions P, fullwidthathalf
สูง W, A, andprofile k ที่ตั้ง) ofthe10bandsas40variables.
referencematerialscanbeeasilyclusteredintogroups (Fig. 5):
oilsarefoundintheupperrightquadrantofthescoreplot,glues
withaPC1aroundzeroandwithanegative(−4) PC2Theresinshave
howeveraparticularbehavior:diterpenicresinscanbeseparated
into3groups:Manilacopal, sandaracandKauriresininonegroup
(bottomleftquadrantofthescoreplot), colophonyandVenice
turpentine inasecondgroupinthe upperleftquadrantofthescore
plotand finally,inthesameareabutclusteredaswell,theAfrican
and/orMadagascarcopals.Triterpenicresinsarequitedispersedand
arealmostsorted:elemiisonthetoprightquadrantofthescore
plotmasticisinthebottomrightquadrantofthescoreplotbut
mixedwiththeshellacsDammarandfrankincensearewithaPC1
aroundzeroandanegative(−3) PC2Resinsseemtobegrouped
accordingtothetreespeciesfromwhichtheyexudeแน่นอน,
colophonyandVeniceturpentinederivebothfromPinaceaefamily
withmajorcomponentsabieticacidanditsdegradationproducts
andisopimaricacid [43] SandaraccomesfromCupressaceaetrees
andManilacopalandKaurifromAraucariaceaespecies [44] แม้
นี้ความแตกต่าง theyhavesameimportantcomponentsincommon,
suchascommunicacidandsandaracopimaricacid [36] สุดท้าย,
AfricancopalsarefromtheLeguminosaeorFabaceaefamilywith
largeamountsofcopalicacidandozicacid [35]
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ดังนั้น, wechosetoundertakepcatreatmentsusingothervari -
ables : 4 fittingparameters ( bandpositions P , fullwidthathalf
สูงสุด,พื้นที่, andprofile K ) Download 10 bandsas 40 ตัวแปร.
ที่ referencematerialscanbeeasilyclusteredintogroups (รูปที่ 5 ):
oilsarefoundintheupperrightquadrantofthescoreplot glues withapc 1 aroundzeroandwithanegative ( 4 ) pc2 . howeveraparticularbehavior theresinshave
diterpenicresinscanbeseparated
into3groups:Manilacopal,sandaracandKauriresininonegroup
(bottomleftquadrantofthescoreplot),coloph inasecondgroupinthe upperleftquadrantofthescore
plotand finally,inthesameareabutclusteredaswell,theAfrican
and/orMadagascarcopals.Triterpenicresinsarequitedispersedand
arealmostsorted:masticisinthebottomrightquadrantofthescoreplotbut
mixedwiththeshellacs.DammarandfrankincensearewithaPC1
aroundzeroandanegative( PC2.Resinsseemtobegrouped
accordingtothetreespeciesfromwhichtheyexude.Indeed,
colophonyandVeniceturpentinederivebothfromPinaceae [ 43 ] sandaraccomesfromcupressaceaetrees
ตามมาตรฐานandmanilacopalandkaurifromaraucariaceaespecies [ 44 ]
theyhavesameimportantcomponentsincommon แม้ว่าจะมีความแตกต่างนี้
suchascommunicacidandsandaracopimaricacid [ 36 ] สุดท้าย
largeamountsofcopalicacidandozicacid africancopalsarefromtheleguminosaeorfabaceaefamilywith [ 35 ]
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