Interference of therephthalic groups present in Dacron with spectrophotometric azide determination.
The determination of azide groups introduced into Dacron cannot be established by the method based on the Fe3+ - N3- complex because the therephthalic groups present in the polymer also react with Fe3+ to form a product with absorbance at 458 nm.
Oliveira
E A
EA
Departamento de Bioquímica, Universidade Federal de Pernambuco, Recife, Brasil.
Carvalho Júnior
L B
LB
D000042:Absorption; D001386:Azides / Q000032:analysis*; D007501:Iron / Q000378:metabolism; D011093:Polyethylene Terephthalates / Q000138:chemical synthesis*
D001386:Azides; D011093:Polyethylene Terephthalates; D007501:Iron