Hemoglobin concentration measurement is one of the most widely used Clinic analysis project

It is necessary to research a hemoglobin measurement apparatus applied to blood collection and healthy care domain with the advantage of no contaminate

portable and accurate. Secondary absorb measurement mechanism is designed based on the absorb spectrum chart of Azide methemoglobin

and the concentration equation is derived

an instrument based on above method which could detect hemoglobin within 30 to 60 seconds was developed. Testing principle

measuring mechanism

control system and parameters calibration are all introduced in the paper in detail. As the clinical trials show: compared with cyaniding methemoglobin (Fe3+)

the pertinence of the result of the measurement can be 0.9836

the veracity can be 96.32%. Because of the portability and the characteristic of quick-testing online

the instrument can be widely used in moving blood collecting stations

judging the function of the athletes and family health care

and it is important to them.