岛津液相色谱仪和液相色谱质谱联用仪.pptVIP

* * * * this is interface structure. heater flange : in the case of esi and duis block heater maximum temperature is 500 degree case of apci maximum is 300 degree. desolvation line : from this model changed from cdl to dl, not curved desolvation line. only desolvation line. and this unit removable without breaking vacuum. this orifice protect vacuum this figure shows mechanism of vacuum protection. normal operation with DL 1st vacuum region is about 100 or 200 Pa in the case of removing dl,1st vacuum region is about 200 or 300 Pa drying gas tube unnecessary connection. automatically connected. * * * * * * * The given vegetable samples were subjected to analysis. The sample at 20 μg/kg was used for calibration curves (one concentration level). The sample at 5 μg/kg was used for analysis to determine recoveries and accuracies of compounds. When water was added to each sample, some residue was observed. So the sample solution was filtered using a disposable filter (pore size: 0.45 μm). * Now I talk about our new product, LCMS-8030 and results of analysis of residual pesticides in vegetable. Here is the list of pesticides, 27 compounds. We used a Nexera UHPLC system and an LCMS-8030 triple quadrupole mass spectrometer. This Nexera system was operated with a typical fast UHPLC conditions using a Shim-pack XR-ODS column. The particle size is 2.2 μm. Single analysis was conducted in 10 minutes with gradient elution. The MS system equipped with electrospray interface was operated in fast positive/negative switchng mode. We prepared a standard mixture and subjected to LC/MS/MS analysis. * Now I talk about our new product, LCMS-8030 and results of analysis of residual pesticides in vegetable. Here is the list of pesticides, 27 compounds. We used a Nexera UHPLC system and an LCMS-8030 triple quadrupole mass spectrometer. This Nexera system was operated with a typical fast UHPLC conditions using a Shim-pack XR-ODS column. The particle size is 2.2 μm. Single analys