Results 191 to 200 of about 22,039 (218)

Red cell zinc protoporphyrin and protoporphyrin by HPLC with fluorescence detection

Biomedical Chromatography, 1986
AbstractA high performance liquid chromatographic (HPLC) method was developed for the determination of zinc protoporphyrin (ZnPP) and protoporphyrin (PP) in whole blood. After adding the blood to dilute acetic acid, ZnPP and PP were extracted with dimethyl sulfoxide–acetone containing mesoporphyrin as internal standard.
E, Rossi, P, Garcia-Webb
openaire   +2 more sources

Precursors of Protoporphyrin in Chlorella

Nature, 1952
ON the basis of studies of Chlorella mutants a biosynthetic chain has been formulated leading from protoporphyrin through Mg protoporphyrin, Mg vinyl pheoporphyrin and protochlorophyll finally to chlorophyll1. We have recently isolated a Chlorella mutant which promises to reveal some of the precursor porphyrins leading up to protoporphyrin.
L, BOGORAD, S, GRANICK
openaire   +2 more sources

Protoporphyrin IX and oxidative stress

Free Radical Research, 1999
The short- and long-term pro-oxidant effect of protoporphyrin IX (PROTO) administration to mice was studied in liver. A peak of liver porphyrin accumulation was found 2 h after the injection of PROTO (3.5 mg/kg, i.p.); then the amount of porphyrins diminished due to biliar excretion.
S, Afonso, G, Vanore, A, Batlle
openaire   +2 more sources

Triplet states of protoporphyrin IX and protoporphyrin IX dimethyl ester

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1980
Laser and conventional flash photolysis have been used to obtain the triplet—triplet absorption spectra, triplet lifetimes, rates of oxygen quenching and quantum efficiencies of triplet formation of protoporphyrin IX as the dication, monocation and free base in several solvent systems. The results are rationalised in terms of protoporphyrin IX existing
Roy S. Sinclair, David Tait, T. George Truscott   +2 more
openaire   +1 more source

Synthesis of protoporphyrin XIII and protoporphyrin III

The Journal of Organic Chemistry, 1977
G, Buldain, L, Diaz, B, Frydman
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protoporphyrin, n.

2023
openaire   +1 more source

On the Protoporphyrin Monolayers Conformation

ChemPhysChem, 2006
Christophe, Humbert, Dreesen, Laurent, Sartenaer, Yannick, Peremans, André, Thiry, Paul, Volcke, Cedric   +5 more
openaire   +5 more sources

Protoporphyrin Cobalt

2007
S.J. Enna, David B. Bylund
openaire   +1 more source

An Egg Encrusted with Protoporphyrin

Science, 1952
F B, HUTT, J B, SUMNER
openaire   +3 more sources

ChemInform Abstract: SYNTHESIS OF PROTOPORPHYRIN XIII AND PROTOPORPHYRIN III

Chemischer Informationsdienst, 1978
G. BULDAIN, L. DIAZ, B. FRYDMAN
openaire   +1 more source