Optical oxygen sensor

Details Optical oxygen sensor Optical oxygen sensor

C - Chemistry, Metallurgy

07

C

402/8, 260/626.1

C07C 33/18 (2006.01) C07C 43/164 (2006.01) C07C 43/178 (2006.01) C07C 217/10 (2006.01) C07C 309/68 (2006.01) C08G 77/00 (2006.01) G01N 21/64 (2006.01) G01N 31/22 (2006.01) G01N 33/00 (2006.01)

Patent

CA 2022558

Abstract An optical oxygen sensor which is based on a transfer of electromagnetic energy from a donor to an acceptor is described. Pyrene derivatives of the general formula Image I wherein R signifies an alkyl group with up to 30 C atoms which is substituted with a hydroxy or amino group or a group of the formula -NH(1-8C alkyl), a group -CH2-OR in which R has the aforementioned significance, a group -OR in which R has the aforementioned significance or a group -R'-O-R'' in which R' signifies an alkylene group, R'' has the above significance of R and R' and R'' together have not more than 30 C atoms and n signifies a whole number of 1-10, are used as the O2-indicators or as the donors. 1-Hydroxymethylpyrene, 1-(11-hydroxyundecyl)pyrene, 1-(11-hydroxyundecyloxymethyl)pyrene and 1-(2-aminoethyl- oxymethyl)pyrene are preferred pyrene derivatives. Perylene derivatives of the general formula Image II wherein R and n have the aforementioned significance, are used as the acceptors. 3-Hydroxymethylperylene, 11-amino-1-(3-perylene- methoxy)undecane, 3-(2-aminoethyloxymethyl)perylene and 3-(11-hydroxyundecyloxymethyl)perylene are preferred acceptors.

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