Document Exan3LgEJM3nNwxM42JeDbzLb

Technical Service Report Report No. 409-61-804-3 Conoco Inc. Research and Development Department Analytical Research Section Ponca City, Oklahoma To R. E. Laramy From C. B. Herrin Date February 3, 1981 Subject EXAMINATION OF LAKE CHARLES CHEMICAL PLANT EFFLUENT WATER BY GCMS-VOA-ANALYTICAL NO. 5649 Results The following volatile priority pollutants were found: methylene chloride 1,2 dichloroethane chloroform toluene ethylbenzene benzene 1,1,2 trichloroethane fluorotrichloromethane 5 ppb 5 ppb 2 ppb 2 ppb 1 ppb 0.3 ppb 0.3' ppb 10 ppt Introduction The sample was an EPA/CONGCO split taken from Outfall 001 at 0702 on 1/28/81. The sample was properly sealed, packed in ice, and shipped to Ponca City on a chartered airplane. The pollutant determinations were performed on the 29th. Expe rimenta 1 The sample was run by the purge-and-trap technique on the Finnigan 0WA-30. Sample Concentrator Purge gas Purge time Desorption time Desorption temperature Sample size Internal standards He @ 40 mfc/m'.n 12 min 4 min 180C 5 nE 1,4 dichlorobutane and bromochloromethane Gas Chromatograph Carrier Column Oven temperature program He @ 20 mJl/min 6 ft, lYo SP1000 on 60/80 mesh Carbopack B 30C for 4 min initial hold, then 8/min up to 180C then hold for 120 min. SflL 0000881! Technical Service Report No. 409-81-804-8 Page 2 Mass Spectrometer Scan 40-250 amu in 4 sec 1000 scans collected. Approximately 500 ng of each internal standard (as a methanolic solution) was injected into a syringe containing 5 mi of sample. The spiked sam ple was then injected into the purge cell. Discussion Response factors were calculated by running known blends of the pol lutants and internal standards under the same conditions used for the sample. Identification was by a combination of retention time and full spectrum. C. B. Herrin Research Associate Analytical Research Section BW Copies to: FK Lib. SAL 000008.! 13