Apparatus and method for rapidly measuring trace amount aluminum content
A technology for rapid determination of aluminum content, applied in measuring devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of cumbersome processing steps, slow analysis speed, low sensitivity, etc., to reduce food contamination, simple instruments, speed up Analyzing the effect of speed
Inactive Publication Date: 2012-01-04
NINGBO UNIV
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[0004] Therefore, it can be seen from the above analysis that the existing traditional methods for determining aluminum concentration still have the disadvantages of slow analysis speed, cumbersome sample pretreatment steps, low sensitivity, susceptible to interference, and potential toxicity to the human body.
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Implementation example
[0033] Such as figure 1 As shown, a device for quickly measuring trace aluminum content is characterized in that the working electrode is coated with an electrochemical reaction cell 1 with a thin layer of melatonin, a voltammeter 2, a signal acquisition device 3, and a signal processing device 4, The signal output of the electrochemical reaction cell 1 is connected to the signal input of the voltammeter 2, the signal output of the electrochemical reaction cell 1 is also connected to the signal input of the signal acquisition device 3, and the output of the signal acquisition device 3 is connected to the signal processing device 4 signal input.
[0034] The working electrode of the electrochemical reaction cell coated with a thin layer of melatonin is a glassy carbon electrode a, the counter electrode is a pla...
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Abstract
The invention provides a device for rapidly measuring the content of trace aluminium and a method thereof, wherein the device comprises an electrochemical reaction tank whose working electrode is coated with a melatonin thin layer, a signal collecting device and a signal processing device, wherein the signal output of the electrochemical reaction tank is connected with the signal input of a volometer and the signal input of the signal collecting device, and the output of the signal collecting device is connected with the signal input of the signal processing device. Signals of melatonin oxidation peak current variation are received through the relationship among the calibration of melatonin oxidation peak current, the decreasing amplitude of melatonin oxidation peak current and the concentration of aluminium which is added, and the content of trace aluminium is calculated according to the relationship between the current variation and the concentration of aluminium through the signal processing device. The invention has the advantages of high measurement precision, no pollution to food and simple operation, which is not easily disturbed, and easily achieves industrialization.
Description
technical field [0001] The invention relates to a device and a method for measuring trace aluminum content, in particular to a device and a method for measuring trace aluminum content in beverages and biological samples. Background technique [0002] Research on the physiological effects of aluminum in the human body has attracted great attention from medical, biological, and food workers, especially the dullness and even dementia caused by the accumulation of aluminum in the human body have become a hot spot of concern. However, trace amounts of aluminum are now present in food, beverages and biological samples due to packaging and other reasons. Over time, these trace amounts of aluminum have become an element that has an inestimable influence on the physiology of the human body. [0003] At present, methods for the determination of trace aluminum in food, beverage and biological samples have been enriched and developed. However, the traditional methods for determining al...
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IPC IPC(8): G01N27/413
Inventor 干宁侯琳熙
Owner NINGBO UNIV