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Determination of pyrethroid pesticides in tea by series two-solid phase extraction-columns cleanup and gas chromatography-tandem mass spectrometry
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Qi Wang, Hai-Yan Feng, Feng Cao, Hairong Yang, Zhen Ke, Zhijun Chen, Xiyao |
| Copyright Year | 2017 |
| Abstract | A rapid determination method of three pyrethroid pesticides (cyfluthrin, cypermethrin and fenvalerate) in tea was developed by series two-solid phase extraction-column cleanup and external standard method coupled with gas chromatography-tandem mass spectrometry (GC-MS/MS) in 30 min. The pesticide residues in tea were extracted with acetonitrile, and cleaned up by Carb/NH2 and SLH solid-phase extraction columns. After filtration, the target compounds were analyzed by GC-MS and quantified by the external standard method. Under the optimized conditions, good linear ranges of 0.05-2.00 mg/kg were obtained. The limits of detection varied from 0.3 to 1.0 μ g/kg. The linear correlation coefficients were greater than 0.999. At three spiked levels (0.10, 0.50 and 2.00 mg/L), the average recoveries were determined between 80.6% and 116.3% in the four matrices. The inter-day relative standard deviations were between 1.3%-12.6%, and the intra-day relative standard deviations were between 2.7% and 12.1%. This method is simple, fast, and has a good reproducibility, which can meet the requirements of the rapid detection of pyrethroid pesticides in tea. |
| Starting Page | 860 |
| Ending Page | 866 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.3724/SP.J.1123.2017.03033 |
| PubMed reference number | 29048822 |
| Journal | Medline |
| Volume Number | 35 |
| Issue Number | 8 |
| Alternate Webpage(s) | http://www.chrom-china.com/fileup/PDF/sp1703033.pdf |
| Journal | Se pu = Chinese journal of chromatography |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
