The experimental unit was developed for non-invasive in vivo measurement of blood hemoglobin concentration based on algorithms of pulse wave signals processing. Experiments were performed with two types of sensors: five-bands sensor (660, 756, 779, 841 and 963 nm) and seven-bands sensor (520, 658, 776, 839, 974, 1348, 1550 nm). Additional bands in infrared region allow to estimate the water concentration and enhance the accuracy of hemoglobin content measurement. The unit was tested on a group of patients with various hematological pathologies. The total number of patients exceeds 200 people and hemoglobin concentration varied in a range 80-170 g/L. Optimal algorithms with minimum variance of the difference between optical and laboratory measurements of hemoglobin content were found. It was shown that the accuracy of the hemoglobin content determination greatly depends on hematocrit.
Die alkalische und saure Hydrolyse des Pyridazinochinoxalins (I) und seine Oxidation mit Wasserstoffperoxid in Essigsäure oder Ameisensäure sowie die Oxidation mit Kaliumpermanganat werden untersucht.
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