LCGC North America Application Note Alert Having trouble viewing this email? Click here Improvements to Ambient Air Monitoring This study is for ozone precursor analysis achieves quantitation limits below 0.1 ppb (FID) and the capability of sampling for 40 minutes of every hour. Analysis of Pesticide Residues in Grapes Monitoring pesticide residues is subject to stringent regulations and safety standards to protect consumers. In this study, a LC-MS/MS method for multi-residue pesticides analysis is applied for accurate detection and quantification. Microextraction in Syringe and SPME from Plastic Bags Three methods of organic contamination extraction from industrial-grade polyethylene bags using robotic GC/MS autosampler for detection and identification.