Alternative Analysis of Formaldehyde-DNPH and Other Carbonyl-DNPH Derivatives by Capillary GC

Application Note 71 Screening for Drugs of Abuse on Wide Bore Capillary GC Columns Nonpolar, bonded phase SPB-1 columns offer fast, effective, and economical sample screening for acidic-neutral drugs (e.g., barbiturates) or basic drugs (amphetamines, cocaine, codeine, heroin, methadone, morphine,…

Application Note 103 Polyurethane Foam as an Effective Adsorbent for Pesticides in Air (GC Analysis) Polyurethane foam (PUF) is a lightweight, easy-to-use material for sampling pesticides in air. Low back pressure allows sampling rates of 1-5 liters/minute, ensuring short sampling…

Application Note 137 Formulation Stability and Intervendor Comparison of Tetraethylpyrophosphate (TEPP) and Analysis by GC Supelco and Chem Service Inc. conducted independent studies to monitor the decomposition of TEPP in solution. The realtime study made by Chem Service supported the…

Application Note 86 Analyzing Stack Gas Semivolatiles, Using Supelpak-2 Adsorbent and Capillary GC (Modified Method 5, US EPA SW-846) The demanding detection limits required for air sampling by Modified Method 5 (US EPA SW-846, Method 0010) necessitates extensive cleaning and…