Method for detecting content of aluminum in potato starch
A technology of potato starch and detection method, which is applied to measurement devices, instruments, material analysis by optical means, etc., can solve the problems of high operator proficiency and skill requirements, long single detection time, and expensive instruments, etc. The effect of small amount, rapid detection, and simple instrument operation
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[0027] In this embodiment, the method for detecting aluminum content in potato starch has specific steps as follows:
[0028] (1) Prepare test samples, and use potato starch with different aluminum content and potassium aluminum sulfate to be uniformly mixed and pressed as the test object, and the mass of each sample is 1.5g;
[0029] Prepare 10 groups of samples according to different gradients, number 1, 2, 3,..., 10 according to the aluminum content from 0 to 1%. Repeat 3 times for each group of samples. Weigh 1.5g potato starch and press tablets for 1 group of samples, repeat 3 times; 2 groups of samples weigh potato starch and aluminum potassium sulfate with the corresponding masses according to the 0.0033% aluminum mass in 1.5g samples, and mix them evenly And compressed into tablets, repeat 3 times; ... until the preparation of 30 samples in 10 groups is completed.
[0030] (2) Collect LIBS spectrum (X) of each test sample;
[0031] Set the parameters of the LIBS instrument ac...
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