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2-n-Propylthiophene
6-diethylphenyl-d13)
Silca gel modified with benzenesulfonic acid
66215-27-8
2-Mercapto-1-methylimidazole
PCB Congeners in Wastewater, WP PT 10003-1-100 2-n-PropylthiopheneOne 2 mL flame sealed ampule yields in excess of 2 L after dilution. The diluted standard is certified for 18 analytes spiked at 1 20 ng L. The sample is designed for GC MS for analyzing wastewater, specifically EPA Method 1668 and EPA Method 1628. Analyte Low Conc High Conc Units Ammonia as N 0. 1 1 mg L Item no. Name Product Type Study Frequency Study Type Accreditations Study 5370 PCB Congeners in Wastewater, WP CRM CRM i Water Pollution (WP) ISO