Linear range and lower limit of determination of 9 nitroimidazole residues in royal jelly and freeze-dried powder

16.

Under the experimental conditions determined by this method, a series of standard solutions of nitroimidazole drugs are taken, and the peak area (Y axis) is plotted against the concentration of the corresponding nitroimidazole drugs (X axis).

Table 16-19 Linear relationship of nitroimidazole drugs in royal jelly sample matrix

Table 16-20 Linear relationship of nitroimidazole drugs in lyophilized powder sample matrix

Using royal jelly and lyophilized powder without nitroimidazoles drug residues as the sample matrix, the addition experiment was carried out respectively

16.

In this method, the indoor recovery and precision experiments of three concentration levels were carried out, and the experiments were repeated 10 times for each concentration level.

Table 16-21 The test data of the concentration, average recovery, coefficient of variation of 9 nitroimidazole drugs in the royal jelly sample matrix (n=10)

Table 16-22 Test data such as the added concentration, average recovery rate, and coefficient of variation of 9 nitroimidazole drugs in the lyophilized powder sample matrix (n=10)

16.

Under repeatability test conditions, the absolute difference between the two independent test results obtained does not exceed the repeatability limit (r).

Table 16-23 Royal jelly sample matrix content range and repeatability and reproducibility equation

Table 16-24 Matrix content range and repeatability and reproducibility equation of freeze-dried powder samples