LCGC North America Application Note Alert Having trouble viewing this email? Click here Determination of Aromatic Amines Derived from Azo Colorants by GC–MS Using Supported Liquid-Extraction Chem Elut S Cartridges The use of Agilent Chem Elut S cartridges for quantitative analysis of aromatic amines derived from azo dyes according to European method ISO 14362-1 is demonstrated. Analysis of Parabens in Soy Sauce and Vinegar by HPLC Using Agilent Chem Elut S-Supported Liquid Extraction (SLE) Cartridges The use of Agilent Chem Elut S supported liquid extraction cartridges for the analysis of seven parabens from soy sauce and vinegar by LC–DAD detection is demonstrated. Drug of Abuse Analysis in Human Urine Using Agilent Chem Elut S-Supported Liquid Extraction by LC–MS/MS This application note demonstrates the use of Chem Elut S 96-well plates (400 mg) for the quantitative analysis of 24 drugs of abuse (DOAs) in human urine by LC–MS/MS. Quantitative Determination of a Panel of Endogenous Steroids in Human Serum by LC–MS/MS The application of Chem Elut S 2 mL 96-well plates for the quantitative determination of a panel of 15 endogenous steroids from human serum by LC–MS/MS is demonstrated. Protein Precipitation for Biological Fluid Samples Using Agilent Captiva EMR—Lipid 96-Well Plates Steps, considerations, cautions on protein precipitation for biological samples; a comparison between traditional PPT and PPT followed by Captiva EMR—Lipid cleanup. Quantitative Determination of Drugs of Abuse in Human Plasma and Serum by LC–MS/MS Using Agilent Captiva EMR—Lipid Cleanup This study uses the 96-well plate format of Captiva EMR—Lipid for quantitative determination of 24 representative drugs of abuse in human plasma and serum by LC–MS/MS. Vitamin D Metabolite Analysis in Biological Samples Using Agilent Captiva EMR—Lipid This note uses Agilent Captiva EMR—Lipid for 96-well plate based in situ protein precipitation and pass-through cleanup of plasma. Analysis of Per- and Polyfluoralkyl Substances (PFASs) in Biological Fluid Using a Novel Lipid Removing Sorbet and LC–MS/MS Plasma sample preparation and LC–MS/MS analysis of PFASs using in-well PPT followed by PPL removal using the Agilent Captiva EMR—Lipid cartridge is described.