The linear range and lower limit of determination of 15 quinolones residues in eel and its products

11.
2.
1.
8 Linearity range and lower limit of determination

Under the experimental conditions determined by the present method, the peak area and the calibration curve plotted was linear correlation within 0 ~ 100ng / mL range, 15 kinds of quinolone class of drugs regression equation and correlation coefficient of the standard curve as Table 11 7
.

Table 11-7 Regression equations and correlation coefficients of 15 quinolones

Using live eels and grilled eels that do not contain quinolones as samples, 15 quinolones added at an amount equivalent to 5.
0 μg/kg, while obtaining a satisfactory recovery rate, the signal-to-noise ratio is greater than 10
.

11.
2.
1.
9 Method recovery and precision

Using live eel and grilled eel samples without quinolones as the matrix, four concentration levels of 5ug/kg, 10μg/kg, 20μg/kg, and 40μg/kg were added and recovered.
The recovery rate and precision are shown in the table respectively.
11-8
.

Table 11-8 Addition recovery and precision test results

Related links: Selection of analysis conditions for determination of 15 quinolones residues in eel and its products