title: A microcolumn apparatus for rapid cleanup of 2,4-dinitrophenylmethylamine extracts for carbamate pesticide analysis.
mesh_terms: D002219:Carbamates / Q000032:analysis*; D002845:Chromatography / Q000295:instrumentation*; D005782:Gels; D007097:Imines / Q000032:analysis; D008744:Methylamines; D008832:Microchemistry / Q000295:instrumentation; D009578:Nitrobenzenes; D010573:Pesticide Residues / Q000032:analysis*; D012822:Silicon Dioxide; D013440:Sulfides / Q000032:analysis
chemical_list: D002219:Carbamates; D005782:Gels; D007097:Imines; D008744:Methylamines; D009578:Nitrobenzenes; D010573:Pesticide Residues; D013440:Sulfides; C007495:2,4-dinitrophenylmethylamine; D012822:Silicon Dioxide