Chemistry: analytical and immunological testing – Oxygen containing – Molecular oxygen
Patent
1991-06-28
1993-11-02
Housel, James C.
Chemistry: analytical and immunological testing
Oxygen containing
Molecular oxygen
436127, 436138, 436173, 514410, 540139, G01N 3300, G01N 2410
Patent
active
052583139
ABSTRACT:
The present invention relates to a process for the detection or determination of molecular oxygen by EPR spectrometry using radical lithium phthalocyanines and a composition usable for in vivo determination. In the process, a medium is contacted with a radical lithium phthalocyanine in accordance with the formula: ##STR1## in which R.sup.2, R.sup.3, R.sup.6, R.sup.7, R.sup.10, R.sup.11, R.sup.14 and R.sup.15 represent an alkyl or an alkoxy radical group with 1-3 carbon atoms and R.sup.1, R.sup.4, R.sup.5, R.sup.8, R.sup.9, R.sup.12, R.sup.13 and R.sup.16 represent a hydrogen or deuterium atom, and the EPR signal of the radical lithium phthalocyanine in contact with the medium is examined.
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Commissariat a l''Energie Atomique
Housel James C.
Soderquist Arlen
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