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A SIMPLE, QUANTITATIVE TEST FOR ERYTHROCYTIC PROTOPORPHYRIN IN LEAD-POISONED DUCKS1
TLDR
A finding of a blood PP concentration above 40 μg/dl would suggest the ducks being examined ingested the equivalent of at least one lead shot approximately two days to one month prior to testing, due to rapid leak of PP from erythrocytes and effective biliary clearance. Expand
REACTIVITY OF CHOLESTEROL AND SOME FATTY ACIDS TOWARD SINGLET OXYGEN
We have demonstrated that 3p-hydroxy-Sahydroperoxy-A'-cholestene, the product of attack of singlet oxygen 'Of on cholesterol, is produced in good yield upon irradiating aerated aqueous suspensions ofExpand
Zinc Protoporphyrin in the Erythrocytes of Patients with Lead Intoxication and Iron Deficiency Anemia
The fluorescent porphyrin in the erythrocytes of patients with lead intoxication or with iron deficiency anemia is zinc protoporphyrin that is bound to globin moieties, probably at heme binding sites.
Zinc protoporphyrin level in blood determined by a portable hematofluorometer: a screening device for lead poisoning.
TLDR
An inexpensive portable fluorometer has been designed which can be used to determine the concentration of zinc protoporphyrin in a drop of unprocessed blood deposited on a disposable glass slide, and comparisons of ZPP levels obtained with the use of the hematofluorometer with erythrocyte protoprophyrin levels obtained using accepted extraction methods are presented. Expand
Solution Photochemistry of Thymine and Uracil
With dienes as specific triplet quenchers, it has been shown that the photodimerization of thymine in acetonitrile proceeds entirely through the triplet state and the photodimerization of uracil inExpand
Excited states of nucleotides in water at room temperature
Abstract The intersystem crossing yields and excited singlet state lifetimes of the common mononucleotides were estimated by the europium ion method. By comparing these results with low temperatureExpand
Mechanisms of Photochemical Reactions in Solution. XXXIII. Intersystem Crossing Efficiencies
A simple method for measurement of quantum yields for the singlet→triplet crossing process in solution has been developed. The compound to be tested is used as a sensitizer for one or more cis—transExpand
The hematofluorometer.
A portable filter fluorometer, the hematofluorometer--which utilizes "front face" optics, internal standards, and digital computation capabilities--has been specifically designed for the rapidExpand
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