Portable plumbum ion concentration analyzer using disposable sensor

Abstract

The invention relates to a portable lead ion concentration analysis meter with a disposable sensor, which is used for the detection of lead ion concentration in blood or urine. The analysis meter comprises a detecting instrument, a disposable sensor and a correction card, wherein the detecting instrument is provided with a sensor interface, a correction card interface, a display screen, buttons, and a communication serial port which needs to be connected with a computer; the disposable sensor comprises a substrate, working electrodes, auxiliary electrodes, reference electrodes, insulating layers and covering resins, the working electrodes, the auxiliary electrodes and the reference electrodes are positioned on the substrate, and the covering resins are positioned on the insulating layers positioned on the electrodes; and the correction card is used for correcting parameters detected by the detecting instrument. The invention has the advantages that the analysis meter can automatically complete the processes of parameter setting, collection, dissolution, data collection, background correction, characteristic potential judgment, concentration calculation, sensor correction, result display, and the like which are needed by the entire detection, thus the analysis meter avoids the error caused by human elements during the detection process of the traditional electrochemical method; and besides, the analysis meter has cabinet configuration and low cost and is suitable for basic medical institutions.

Description

technical field [0001] The invention relates to a portable lead ion concentration analyzer using a disposable sensor, which is used for the detection of lead ion content in blood or urine. Background technique [0002] Lead is a heavy metal element that is neurotoxic to the human body, and children's nervous system is in the process of rapid development and perfection. During this period, the nervous system's resistance to external toxic substances is the most vulnerable. Studies at home and abroad have found that the more serious the environmental lead pollution, the higher the incidence of mental retardation in children. For every 10g / dl increase in blood lead level of children, their intelligence quotient (IQ) will decrease by 6-8 points. Researcher Dai Yaohua of the Capital Institute of Pediatrics and other studies have shown that the lead poisoning rate of urban children in China is 10.45%, the overall average blood lead level is 59.52μg / L, and those with blood lead le...

AI Technical Summary

Problems solved by technology

Since the mercury drop bench or static mercury bench with stripping voltammetry is used as the detection platform, the samples need to be digested, and the maintenance and calibration of the instrument are also relatively complicated.

[0004] Due to the universality of demand for blood lead testing, grassroots community health service centers are suitable institutions for carrying out this test. The reality is that the basic level community health service centers are equipped with dissolution instruments and atomic absorption spectrometers. The price barriers and the operation of chemical colorimetric methods Due to the complexity of the environment, the current prevalence of blood lead testing in grassroots community health service centers is very low

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