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Food heavy metal rapid detector

Electrochemical rapid detection technology, combined with innovative rapid pretreatment methods, can quickly determine the content of heavy metals in various samples of grains and their products, feed

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The electrochemical fast food heavy metal detector adopts electrochemical fast detection technology, combined with innovative fast pre-processing methods, can quickly determine the heavy metal in various samples of various grains and grains and their products, feed and feed materials, Chinese medicinal materials, vegetables, etc. Content, quick and easy operation, accurate and reliable results. 


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The main technical parameters:



project


The main technical parameters


Measurement parameters


Heavy metals such as copper, cadmium, lead, and zinc


scope of test


Detection range: 5ppb~5ppm


Detection accuracy


RSD≤1% (calculated as Cd 0.5ppm in rice)


The detection limit


0.5 ppb


Application case one:

Select national food standards including grains, vegetables, etc., and use YASH-200 for rapid sample processing and determination. The test results are shown in Tables 1~3: 


Table 1 Test results of cadmium


sample name


NumberingStandard value/10-3Measured mean value/10-3

wheat
GBW08503b150±40151.8


Rice

GBW1001087±585.9


cabbage

GBW10014
35±632.0


green tea

GBW1005276±480.8


scallop

GBW100241060±100994.6


spinach

GBW10015150±25168.1


sample name

GBW1001118±417.3


wheat

GNW(E)0806849±47.3


apple

GBW100195.8±1.23.8


Astragalus

GBW1002842±1036.0


Liaoning rice

GBW1004312±313.8


Table 2 Test results of copper element



sample name


NumberingStandard value/10-3Measured mean value/10-3

Rice
GBW100104900±3004880.3


Wheat

GBW100112700±2002711.6


Astragalus

GBW10028
8500±7007425.5


Liaoning rice 

GBW100431700±1001845.0



Table 3 Lead element test results



sample name


NumberingStandard value/10-3Measured mean value/10-3

Wheat
GBW08503b340±130384.5


Rice

GBW1001080±30112.4


Cabbage

GBW10014
190±30211.4


Spinach

GBW10015111000±9009609.2


Wheat

GBW1001165±2474.6


Chicken

GBW10018110±20109.6


Astragalus

GBW100281400±1001096.6

Application case two:

Five rice samples were obtained from a grain field, and YASH-200 was used for rapid sample processing and determination. The measurement methods were compared with an imported manufacturer’s single wavelength dispersion X-ray fluorescence instrument (the lower limit of Cd quantification is 0.05 ppm). The test results are shown in Table 4. Shown: 


Table 4 Test results of actual samples of cadmium in rice



sample name


NumberingSingle wavelength dispersion X fluorescence/ppmYASH-200 measured value/ppm

Rice
#10.310.29


Rice

#20.400.39


Rice

#3
0.560.56


Rice

#40.230.21


Rice

#50.210.20


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Conclusion: The test results show that this method is applied to the determination of cadmium (Cd), copper (Cu), lead (Pb) and other heavy metal elements in food. It has the characteristics of high accuracy and good stability. It is fully satisfied by the Academy of Agricultural Sciences, Industry and Commerce Bureau, Food Bureau, Ocean Monitoring Center and other departments have on-site and rapid detection requirements for heavy metals in food. 

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