Method for identifying microorganisms by adopting mass spectrum
A microbial and mass spectrometry technology, applied in the field of microbial identification, can solve the problems of increasing false positives and false positives, increasing security incidents, and low accuracy of microbial identification, improving the accuracy, reducing the probability of false positives and false positives, and reducing The effect of false positives and false positives
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[0070] Obtain a list of mass spectrum peaks of all known microorganisms (as shown in Table 1);
[0071] Determine the mass intervals of all characteristic peaks in the peak list, and divide the mass intervals into several units, so that the characteristic peaks of each microorganism fall into different units;
[0072] Obtain the peak-out ratio X or the peak-out ratio Y of each known microorganism in each unit;
[0073] Set the upper limit value of all unit weighting values to A, and the lower limit value to negative A,
[0074] Obtain the weighted value of each known microorganism in each unit (as shown in Table 2), specifically calculated according to the following formula:
[0075] A*X or (-A)*Y;
[0076] Obtain the product of the peak intensity of each known microorganism in each unit and the weighted value, and the sum of the weighted products of all units of the microorganism (as shown in Table 3);
[0077] Obtain the mass spectrum peak list of the microorganisms to ...
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