Research Article
Determination of 20 Neonicotinoid Insecticides and Their Metabolites in Infant Foods by a Modified QuEChERS Method Combined with HPLC-MS/MS
Table 4
Results of neonicotinoids determination in infant foods measured by the GB method and proposed method.
| | Matrixes/analytes | Methods | Samples (µg/kg) | Average values (µg/kg) | RSD (%) | | S1 | S2 | S3 | S4 | S5 | S6 |
| | Cookies/ACE | GB/T 20769–2008 | 4.76 | 4.66 | 4.56 | 4.66 | 4.61 | 4.55 | 4.63 | 1.68 | | Proposed method | 4.76 | 4.63 | 4.49 | 4.57 | 4.66 | 4.41 | 4.59 | 2.71 |
| | Cereals/THX | GB/T 20769–2008 | 5.37 | 5.36 | 5.41 | 5.30 | 5.62 | 5.69 | 5.46 | 2.86 | | Proposed method | 5.57 | 5.64 | 5.56 | 5.35 | 5.69 | 5.65 | 5.58 | 2.17 |
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