+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Determination of benzothiazole and alkylphosphates in water samples from the Great Lakes drainage basin by gas chromatography/Atomic emission detection

, : Determination of benzothiazole and alkylphosphates in water samples from the Great Lakes drainage basin by gas chromatography/Atomic emission detection. Water Quality Research Journal of Canada 31(2): 341-360

Benzothiazole, tri-n-butylphosphate, tris(2-chloroethyl)phosphate, tris(beta-chloropropyl)phosphate and two isomers of this last chemical were detected in all archived water extracts collected from permanent sampling stations located at Fort Erie, Niagara-on-the-Lake and Wolfe Island. The archived samples initially extracted using a Goulden large sample extractor (GLSE) after centrifuging, were analyzed using gas chromatography/atomic emission detection (GC-AED) for P-, S-, and N-containing compounds. All samples also contained atrazine and metolachlor whose concentrations had previously been determined using gas chromatography/mass spectrometry (GC/MS). The concentration values of atrazine in the 38 archived samples as determined by the AED method were similar to those determined by the GC/MS method. However, the concentrations of metolachlor in the 38 archived samples calculated from the GC/AED generally differed by a factor of 2 relative to concentrations determined for the extracts by GC/MS. The atrazine and metolachlor concentrations determined by GC/AED were in the range 12-141 ng/L compared to 10-89 ng/L determined using GC/MS. The trialkylphosphate concentrations were in the range 5-23 ng/L and the benzothiazole concentrations were in the range 1-10 ng/L. Other archived samples from the St. Lawrence River above and below Montreal also contained the above five trialkylphosphates and benzothiazole, as did fresh samples from the eastern and western basins of Lake Erie. Nonpolar fractions from silica gel cleanup of the St. Clair River sample extracts contained none of the compounds of interest, but the compounds were found in the methanol eluates of the cleanup column material. One sample collected from the middle of Lake Huron contained tris(2-chloroethyl)phosphate. Rain samples collected about Lake Ontario contained benzothiazole and the alkylphosphates.

Accession: 008444692

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Turnes, M.I.; Rodriguez, I.; Mejuto, M.C.; Cela, R., 1994: Determination of chlorophenols in drinking water samples at the subnanogram per millilitre level by gas chromatography with atomic emission detection. The use of an atomic emission detector following a process of preconcentration of drinking water samples by a factor of 1500:1 allows the highly selective determination of chlorophenols present in samples below the maximum limit of 0.5 ng/ml set b...

Elci, L.; Kolbe, N.; Elci, S.G.; Anderson, J.T., 2011: Solid phase extractive preconcentration coupled to gas chromatography-atomic emission detection for the determination of chlorophenols in water samples. Solid-phase extraction (SPE) followed by derivatization and gas chromatography-atomic emission detection (GC-AED) was evaluated for the determination of five chlorophenols (CPs) in water samples. The derivatization was based on the esterification...

Carpinterio Botana, J.; Rodriguez Pereiro, I.; Cela Torrijos, R., 2002: Rapid determination of butyltin species in water samples by multicapillary gas chromatography with atomic emission detection following headspace solid-phase microextraction. A procedure for the rapid determination of mono-, di- and tributyltin in water samples is described. The analytes are simultaneously ethylated and concentrated on a solid-phase microextraction fibre placed in the headspace over the sample for 2 mi...

De-La-Calle-Guntinas, M.B.atriz; Brunori, C.; Scerbo, R.; Chiavarini, S.; Quevauviller, P.; Adams, F.; Morabito, R., 1997: Determination of selenomethionine in wheat samples: Comparison of gas chromatography-microwave-induced plasma atomic emission spectrometry, gas chromatography-flame photometric detection and gas chromatography-mass spectrometry. A method is described for the selective determination of selenomethionine in wheat samples. The method is based on three steps prior to the determination: (1) hydrolysis of the proteins with tetramethylammonium hydroxide, (2) clean-up on an alumin...

Campillo, N.; Aguinaga, N.; Vinas, P.; Lopez Garcia, I.; Hernandez Cordoba, M., 2005: Capillary gas chromatography with atomic emission detection for determining chlorophenols in water and soil samples. A purge-and-trap preconcentration system coupled to a GC equipped with a microwave-induced atomic emission detector was used to determine 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP) and 2,4,6-trichlorophenol (2,4,6-TCP) in water and soil s...

Liu, Y.; Lopez Avila, V.; Alcaraz, M.; Beckert, W.F., 1993: Determination of organotin compounds in environmental samples by supercritical fluid extraction and gas chromatography with atomic emission detection. The extraction of six tetraalkyltin and seven ionic organotin compounds from spiked topsoil samples with supercritical carbon dioxide and carbon dioxide modified with 5 percent methanol was investigated. Analysis of the soil extracts was performed...

Liu, Y.; Lopez Avila, V.; Alcaraz, M.; Beckert, W.F.; Heithmar, E.M., 1993: Determination of metals in solid samples by complexation-supercritical fluid extraction and gas chromatography-atomic emission detection. Journal of Chromatographic Science 31(8): 310-316

Canosa, P.; Montes, R.; Lamas, J.P.; García-López, M.; Orriols, I.; Rodríguez, I., 2009: Pressurized liquid extraction followed by gas chromatography with atomic emission detection for the determination of fenbutatin oxide in soil samples. A novel method for the determination of the miticide bis[tris(2-methyl-2-phenylpropyl)tin] oxide, also known as fenbutatin oxide (FBTO), in agricultural soils is presented. Pressurized liquid extraction (PLE) followed by analyte derivatization and...

Frischenschlager, H.; Peck, M.; Mittermayr, C.; Rosenberg, E.; Grasserbauer, M., 1997: Improved screening analysis of organic pollutants in river water samples by gas chromatography with atomic emission detection (GC-MIP-AED). The potential of gas chromatography with a microwave-induced plasma atomic emission detector (GC-MIP-AED) for the screening analysis of trace organic components in river water samples is presented. The application of a commercially available GC-MI...

Liu, Y.; Lopez Avila, V.; Alcaraz, M.; Beckert, W.F., 1994: Simultaneous determination of organotin, organolead, and organomercury compounds in environmental samples using capillary gas chromatography with atomic emission detection. HRC Journal of High Resolution Chromatography 17(7): 527-536