Title :
New approach to haemoglobinometry based on reflectance photometry
Author :
Koul, V. ; Debnath, N. ; Anand, S. ; Guha, S.K.
Author_Institution :
Centre for Biomed. Eng., Indian Inst. of Technol., New Delhi, India
Abstract :
A new approach to haemoglobinometry based on reflectance photometry using a pretreated cell strip is described. A disposable cell strip is designed to absorb a standardized volume of blood from a finger prick without any volumetric measuring apparatus. Pretreatment of the cell oxidizes haemoglobin to methemoglobin, thereby eliminating the errors of Tallqvist´s method. The behavior of blood cells on chemically treated as well as untreated filter paper is studied by scanning electron microscopy. The principle behind the proposed method is used to fabricate a small, cheap and portable hemoglobinometer using LEDs and suitable sensors. This technique provides a simple and reliable means of ascertaining hemoglobin content in blood for routine as well as field use.<>
Keywords :
biomedical measurement; blood; light reflection; photometry; proteins; LEDs; chemically treated filter paper; disposable cell strip; finger prick; haemoglobin oxidation; haemoglobinometry; methemoglobin; pretreated cell strip; reflectance photometry; scanning electron microscopy; sensors; untreated filter paper;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95115
