20.500.12556/DKUM-67811 Določanje prostega formaldehida na bombažnih tekstilnih substratih s pomočjo HPLC Determination of free formaldehyde on cotton textile substrates by using HPLC Sproščanje formaldehida iz vrhunsko apretiranega materiala je za zdravje in varnost ljudi škodljivo zaradi morebitne kancerogenosti formaldehida. Natančnost standardne testne metode za določanje prostega formaldehida, Japan Law 112 je odvisna od vsebnosti formaldehida v vzorcu. Vsebnosti formaldehida pod 20 ▫$\mu$▫\g s to metodo ne moremo določiti. Zaznavanje nizkih vsebnosti formaldehida je pomembna predvsem na nekaterih področjih, kot so otroška oblačila, kjer bi lahko uporabili tekočinsko kromatografijo. Tekstilne substrate, obdelane z različnimi reagenti za zamreženje, smo ekstrahirali z vodo in prosti formaldehid določili z acetilacetonsko metodo. Rezultate, dobljene s standardno testno metodo, Japan Law 112, kjer smo uporabili UV/VIS spektrofotometer, smo primerjali z rezultati, dobljenimi s HPLC, kjer je separacija potekala na RP C 18 koloni in z vodo : $MeOH$ kot mobilno fazo. Meja detekcije in meja kvantitativne določitve je boljša z uporabo HPLC metode. Koncentracijsko območje pri HPLC metodi je od 0.3 ▫$\mu$▫g do 30 ▫$\mu$▫/g. Release of formaldehyde from durable press treated fabrics is a problem for human health and safety because formaldehyde is suspected to be carcinogen. The accuracy of the standard test method for the free formaldehyde determination, Japan Law 112, depends on the formaldehyde content of the sample. The formaldehyde contents below 20 ▫$\mu$▫\g can not be shown to be caused by formaldehyde. The detection of low formaldehyde contents is important particularly in some fields, like children clothing, so the high performance liquid chromatography was used. With different crosslinking reagents finished textile substrates were extracted with water to detect the free formaldehyde by an acetylacetone method. The results obtained by the standard test method, Japan Law 112, where UV/Vis spectrometer was used, were compared with the results obtained by HPLC method where separation was performed on RP C 18 column with water/$MeOH$ as a mobile phase. It was shown that the detection limit and limit of quantification were improved using HPLC method. Concentration range obtained by HPLC method is from 0.3 ▫$\mu$▫g to 30 ▫$\mu$▫/g. tekstilni materiali apretura prosti formaldehid UV/VIS spektrofotometer HPLC textile materials chemical finishing free formaldehyde UV/VIS spectrophotometer HPLC true false true Slovenski jezik Angleški jezik Znanstveno delo 2017-08-31 09:58:37 2017-08-31 10:00:00 2022-08-01 14:28:55 2019-07-11 16:32:12 2003 0 0 str. 269-273 št. 9/10 Letn. 46 2003 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 0351-3386 677.016:547.281.1 763396 8447766 0351-3386 URN:SI:UM:DK:C1VOI5CI Tekstilec_2003_Voncina_et_al._Dolocanje_prostega_formaldehida_na_bombaznih_tekstilnih_substratih_s_pomocjo_HPLC.pdf Tekstilec_2003_Voncina_et_al._Dolocanje_prostega_formaldehida_na_bombaznih_tekstilnih_substratih_s_pomocjo_HPLC.pdf 1 324C8BFCA7F64868B1A1BEFCA1D3B755 049d810e5ed7cf617ca5fef4e30dfbc285d1513974c00d984dfbce3fe80cb9b1 985a2c42-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/007c1485-7895-49b4-a486-5415bb1c690c https://dk.um.si/Dokument.php?lang=slv&id=116540 http://www.tekstilec.si/wp-content/uploads/2003/09/Dolo%C4%8Danje-prostega-formaldehida-na-bomba%C5%BEnih-tekstilnih-substratih-s-pomo%C4%8Djo-HPLC.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=116539 Fakulteta za strojništvo 0 0 0