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Technical Note: Could Benzalkonium Chloride Be a Suitable Alternative to Mercuric Chloride for Preservation of Seawater Samples? : Volume 12, Issue 4 (24/08/2015)

By Gloël, J.

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Book Id: WPLBN0004020881
Format Type: PDF Article :
File Size: Pages 17
Reproduction Date: 2015

Title: Technical Note: Could Benzalkonium Chloride Be a Suitable Alternative to Mercuric Chloride for Preservation of Seawater Samples? : Volume 12, Issue 4 (24/08/2015)  
Author: Gloël, J.
Volume: Vol. 12, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Robinson, C., Tilstone, G. H., Tarran, G., Kaiser, J., & Gloël, J. (2015). Technical Note: Could Benzalkonium Chloride Be a Suitable Alternative to Mercuric Chloride for Preservation of Seawater Samples? : Volume 12, Issue 4 (24/08/2015). Retrieved from http://hawaiilibrary.net/


Description
Description: Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, UK. Instrumental equipment unsuitable or unavailable for fieldwork as well as lack of ship space can necessitate the preservation of seawater samples prior to analysis in a shore-based laboratory. Mercuric chloride (HgCl2) is routinely used for such preservation, but its handling and subsequent disposal incur significant risks and expense. Benzalkonium chloride (BAC) has been used previously for freshwater samples. Here, we assess BAC as a less hazardous alternative microbial inhibitor for marine samples prior to the measurement of oxygen-to-argon (O2/Ar) ratios, as used for the determination of plankton net community production. BAC at a concentration of 50 mg dm−3 inhibited microbial activity for at least three days in seawater with chlorophyll a (Chl a) concentrations up to 1 mg m−3, possibly longer when Chl a concentrations were lower. BAC concentrations of 100 and 200 mg dm−3 were no more effective than 50 mg dm−3. With fewer risks to human health and the environment, and no requirement for expensive waste disposal, BAC could be a viable alternative to HgCl2 for short-term preservation of seawater samples, but is not a replacement for HgCl2 in the case of oxygen triple isotope analysis, which requires storage over weeks to months. In any event, further tests on a case-by-case basis should be undertaken if use of BAC was considered, since its inhibitory activity may depend on concentration and composition of the microbial community.

Summary
Technical Note: Could benzalkonium chloride be a suitable alternative to mercuric chloride for preservation of seawater samples?

Excerpt
Block, S. S.: Disinfection, Sterilization and Preservation, Lippincott Williams & Wilkins, Philadelphia, USA, 2001.; Craig, H. and Hayward, T.: Oxygen supersaturation in the ocean: biological versus physical contributions, Science, 235, 199–202, 1987.; Dickson, A. G., Sabine, C. L., and Christian, J. R.: Guide to best practices for ocean CO2 measurements, PICES Special Publication 3, IOCCP Report No. 8, 191 pp., 2007.; Emerson, S., Quay, P., Stump, C., Wilbur, D., and Know, M.: O2, Ar, N2, and 222Rn in surface waters of the subarctic ocean: net biological O2 production, Global Biogeochem. Cy., 5, 49–69, 1991.; Ferreira, C., Pereira, A. M., Pereira, M. C., Melo, L. F., and Simões, M.: Physiological changes induced by the quaternary ammonium compound benzyldimethyldodecylammonium chloride on Pseudomonas fluorescens, J. Antimicrob. Chemoth., 66, 1036–1043, doi:10.1093/jac/dkr028, 2011.; Hamme, R. C., Cassar, N., Lance, V. P., Vaillancourt, R. D., Bender, M. L., Strutton, P. G., Moore, T. S., DeGrandpre, M. D., Sabine, C. L., Ho, D. T., and Hargreaves, B. R.: Dissolved O2/Ar and other methods reveal rapid changes in productivity during a Lagrangian experiment in the Southern Ocean, J. Geophys. Res., 117, C00F12, doi:10.1029/2011jc007046, 2012.; Hendricks, M. B., Bender, M. L., Barnett, B. A., Strutton, P., and Chavez, F. P.: The triple oxygen isotope composition of dissolved O2 in the equatorial Pacific: a tracer of mixing, production, and respiration, J. Geophys. Res., 110, C12021, doi:10.1029/2004JC002735, 2005.; Holtappels, M., Tiano, L., Kalvelage, T., Lavik, G., Revsbech, N. P., and Kuypers, M. M. M.: Aquatic respiration rate measurements at low oxygen concentrations, PLoS ONE, 9, e89369, doi:10.1371/journal.pone.0089369, 2014.; Kaiser, J., Reuer, M. K., Barnett, B., and Bender, M. L.: Marine productivity estimates from continuous oxygen/argon ratio measurements by shipboard membrane inlet mass spectrometry, Geophys. Res. Lett., 32, L19605, doi:10.1029/2005GL023459, 2005.; Kana, T., Cornwell, J., and Zhong, L.: Determination of denitrification in the Chesapeake Bay from measurements of N2 accumulation in bottom water, Estuar. Coast., 29, 222–231, doi:10.1007/BF02781991, 2006.; Kattner, G.: Storage of dissolved inorganic nutrients in seawater: poisoning with mercuric chloride, Mar. Chem., 67, 61–66, 1999.; Kirkwood, D. S.: Stability of solutions of nutrient salts during storage, Mar. Chem., 38, 151–164, doi:10.1016/0304-4203(92)90032-6, 1992.; Kuo, C.-Y.: Improved application of ion chromatographic determination of carboxylic acids in ozonated drinking water, J. Chromatogr. A, 804, 265–272, 1998.; Langford, N. and Ferner, R.: Toxicity of mercury, J. Hum. Hypertens., 13, 651–656, 1999.; Morel, F. M. M., Kraepiel, A. M. L., and Amyot, M.: The chemical cycle and bioaccumulation of mercury, Annu. Rev. Ecol. Syst., 29, 543–566, doi:10.1146/annurev.ecolsys.29.1.543, 1998.; Oh, S., Tandukar, M., Pavlostathis, S. G., Chain, P. S. G., and Konstantinidis, K. T.: Microbial community adaptation to quaternary ammonium biocides as revealed by metagenomics, Environ. Microbiol., 15, 2850–2864, doi:10.1111/1462-2920.12154, 2013.; Quay, P., Stutsman, J., and Steinhoff, T.: Pri

 

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