Dyes and biological sources in nineteenth to twentieth century ethnographic textiles from Transylvania, Romania

Heritage Science

Table 2 Retention, UV–Vis and MS data for the dyes detected in the present study

Dye component (abbreviation)	Retention	UV–Vis^a	[M−H]⁻
ap	13.7	210; 268; 336	269
ca	8.8	226; 276; 310; 494	491
chry	13.9	–	299
dcII	8.3	288; 434	475
dios	14.0	–	299
ea	9.8	254; 366	301
em	17.5	222; 254; 266; 288; 438	269
fi	11.3	206; 248; 320; 360	285
fk	13.5	–	313
ge	13.4	208; 260	269
ind	16.2	238; 285; 330; 610	261
inr	17.0	–	261
ka	13.4	–	329
kpf	13.7	204; 266; 366	285
lu	12.7	208; 254; 266; 348	285
3-O-methylqu	12.9	–	315
qu	12.7	208; 254; 265; 248	301
srw	10.5	258; 306; 336	243
sul	12.2	256; 369	269
Indigo carmine	11.2	250; 288; 340; 615	–
Prussian blue	Identified by FTIR/ATR^b (signal at 2074 cm⁻¹) and confirmed by the presence of Fe in XRF^c

Dyes are listed in alphabetical order. At the end, data on the synthetic dyes detected is given. See Table 1 for the natural dyes biological sources and the dyes names
^aUV–Vis data is given only for the major dyes (dyes identified by DAD in the present study)
^b,cSee text, “Results and discussion” section/Blue dyes/Shirts