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Published in Anton Sebastian, A Dictionary of the History of Medicine, 2018
Photelometer Photocell linked to a sensitive microammeter for analysis of chemical constituents in small samples of blood and urine. Invented by G.E. Davis and C. Sheard of America in 1927. A photoelectric hemoglobinometer based on the same principle was developed by Sheard and A.H. Sanford in 1928.
Iron-chelating effect of Caesalpinia sappan extract under conditions of iron overload
Published in Robert Hofstra, Noriyuki Koibuchi, Suthat Fucharoen, Advances in Biomolecular Medicine, 2017
R. Safitri, D. Malini, A.M. Maskoen, L. Reniarti, M.R.A.A. Syamsunarno, R. Panigoro
The equipment used in the study are: Atomic Absorption Spectrophotometry (AAS) variant types AA240FS, surgical equipment, hemocytometer, hemoglobinometer, oral syringes, microtiter plate reader (Biomerius), micropipette, Sartorius balance scales, pipette multi-channels, pipette capillary coated with heparin, rotary evaporator, centrifugator (Heraeus), and a spectrophotometer (Spectronic Genesys 8).
Blunted rest-activity rhythm is associated with increased white blood-cell-based inflammatory markers in adults: an analysis from NHANES 2011-2014
Published in Chronobiology International, 2022
Yanyan Xu, Shaoyong Su, William V. McCall, Xiaoling Wang
According to the protocol of NHANES 2011–2014 cycle, the Beckman Coulter method of counting and sizing, in combination with an automatic diluting and mixing device for sample processing, and a single beam photometer for hemoglobinometry was used for count of blood cells from peripheral blood sample obtained during the day of the participant’s exam in the NHANES Mobile Examination Center (MEC). In this study, our primary white blood-cell-based inflammatory markers are WBC count, neutrophil count, NLR and SII. The SII level was calculated from the numbers of platelet, neutrophil and lymphocyte using the following formula: SII = platelet × neutrophil/lymphocyte count and expressed as ×109/L.