منابع مشابه
Methemoglobin Formation in Human Blood by Cobalt
Although the erythropoietic effect of cobalt has been amply demonstrated in experimental animals (1-3), in normal human beings (4, 5), and in certain types of anemia (4, 6-8), the mechanism of this increased blood formation has not been elucidated. No evidence has been adduced that administration of cobalt causes a decrease in oxygen capacity (9) or alters the oxygen dissociation curve (10, 11)...
متن کاملA Rapid Spectrophotometric 5me’l’i101> for the Determination of Methemoglobin and Carbonylhemoglobin in Blood
Little use has thus far been made of the near infra-red spectrum for the identification and determination of hemoglobin and its derivatives BJ means of infra-red photography Eggert (1) established the transparency of carbon monoxide-saturated blood and used this property for the qualitative detection of carbon monoxide poisoning.. Eggert’s ‘observations were extended and placed on a more quanti...
متن کاملMethemoglobin in blood as determined by double-wavelength spectrophotometry.
We describe spectrophotometric determination of methemoglobin (Met-Hb) in blood by absorbance differences at two wavelengths (characteristic of the instrument used) in the 500-600 nm region. Blood is diluted 100- to 200-fold with a solution containing KCN and carbon monoxide to convert hemoglobin to carboxyhemoglobin and Met-Hb to cyanomethemoglobin (CN-Met-Hb). Carboxyhemoglobin has the same a...
متن کاملSpectrophotometric measurement of carboxyhemoglobin and methemoglobin in blood.
This paper describes separate spectrophotometric procedures for rapidly measuring carboxyhemoglobin (COHb) and methemoglobin (MetHb) in blood. Absorbance measurements are made in the Soret region at a blood dilution near 1000-fold. For COHb estimation, the diluent contains sodium hydrosulfite, providing the two-component system COHb--Hb for absorbance measurements at 420 and 432 nm. The NA2S2O4...
متن کاملFructation Induces Hemin Degradation in Methemoglobin
Under prolonged diabetic conditions, HbA1c is produced from normal hemoglobin (HbA0) through a non-enzymatic glycosylation or glycation, a process which enhances the hemoglobin susceptibility to be auto-oxidized to methemoglobin (metHb). Here we are reporting that the non-enzymatic reaction between fructose and metHb (metHb fructation) induces significant changes in the gl...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1987
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.53.9