应助达人
40 Pesticides out of a multi-target screening method for 300 compounds
色谱柱:Synergi™ 4 µm Fusion-RP 80 Å, $$lc Column 50 x 2 mm, Ea
货号:00B-4424-B0
尺寸:50 x 2 mm ID
洗脱类型:Gradient
洗脱A:H2O + 5mM NH4formate
洗脱B:CH3OH + 5mM NH4formate
梯度:
| 步骤顺序 | 时间 (分) | 洗脱A | 洗脱B |
| 1 | 0 | 80 | 20 |
| 2 | 11 | 10 | 90 |
| 3 | 23 | 10 | 90 |
TEM = 450°C, IS= 5000V, Declustering Potential (DP) = 30V, Collision Energy (CE) = optimized for each compound
Positive polarity, Multiple Reaction Monitoring of 297 transitions (MRMs of example see table)
Information Dependent Acquisition of 3 Enhanced Product Ion spectra to confirm detected compound at CE = 20, 35, and 50V, Dynamic fill time to avoid linear ion trap saturation, Dynamic background subtraction to allow detection of co-eluting peaks, Mass spectral library searching备注:SecurityGuard™ Guard Cartridge System extends column lifetime.
- SecurityGuard Cartridges, Fusion-RP 4 x 2.0mm, 10/Pk Part No.: AJ0-7556
- Holder Part No.: KJ0-4282Screening of 535 Pesticides by QuEchERS and $$lc/MS/MS色谱柱:Synergi™ 2.5 µm Fusion-RP 100 Å, $$lc Column 50 x 2 mm, Ea货号:00B-4423-B0尺寸:50 x 2 mm ID洗脱类型:Gradient洗脱A:Water/Methanol (90:10) + 5 mM ammonium formate洗脱B:Methanol/Water (90:10) + 5 mM ammonium formate梯度:| 步骤顺序 | 时间 (分) | 洗脱A | 洗脱B |
| 1 | 0 | 100 | 0 |
| 2 | 1 | 100 | 0 |
| 3 | 15 | 0 | 100 |
| 4 | 18 | 0 | 100 |
| 5 | 18.05 | 100 | 0 |
| 6 | 20 | 100 | 0 |
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