Determination and Toxicology Studies of Quaternary Ammonium Salts in Solution after Organoclay Processing

Abstract:

Organoclays have potential to be used as additives in various facade paints and other finishing materials. Such new innovative materials must be rigorously tested for them to have no impact on environment. Focus of this study was to develop HPLC – TOF/MS method for determining quaternary ammonium salts in various material washing solutions and to determine organoclay toxicity by performing acute toxicity test on Daphnia magna. From the obtained results, it was possible to conclude that organoclays can be safely used as additives in various materials with low or no impact on environment. We determined that organoclays are significantly less toxic then some quaternary ammonium salts on its own.

• Periodical: Key Engineering Materials (Volume 762)
• Pages: 368-372
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.762.368
• Online since: February 2018
• Authors: Matiss Pals*, Ieva Putna-Nimane, Juris Kostjukovs, Jūlija Karasa, Solvita Kostjukova, Ilva Nakurte
• Keywords: Daphnia magna , ODTMAC, Organoclays, Quaternary Ammonium Salts, Toxicity, UHPLC-TOF/MS Method

References

[1] O. Rzayev, D. Erdönmez, K. Erkan, M. Şimşek, U. Bunyatova, Functional Copolymer/Organo-MMT Nanoarchitectures. XXII. Fabrication and Characterization of Antifungal and Antibacterial Poly (Vinyl Alcohol-co-Vinyl Acetate/ODA-MMT/AgNPs Nanofibers and Nanocoatings by e-Spinning and c-Spinning Methods, International Journal of Polymeric Materials and Polymeric Biomaterials, 64 (2015).

DOI: 10.1080/00914037.2014.936599

[2] J. Markarian, Automotive and packaging offer growth opportunities for nanocomposites. Plast. Addit. Compound. (2005) 18-25 (November/December).

[3] J. Kostjukovs, A. Actiņš, J. Karasa, EU patent apl. Nr. EP 2690067 A1.

[4] Directive 98/8/EC of the European parlament concerning the placing of biocidal products on the market, Official Journal of the European Communities (1998).

[5] L. Guilhermino, T. Diamantino, M. C. Silva, A. M. V. M. Soares, Acute Toxicity Test with Daphnia magna: An Alternative to Mammals in the Prescreening of Chemical Toxicity?, Ecotoxicology and Environmental Safety 46 (2000) 357-362.

DOI: 10.1006/eesa.2000.1916

[6] X. Li, B.J. Brownawell, Analysis of quaternary ammonium compounds in estuarine sediments by LC-ToF-MS: very high positive mass defects of alkylamine ions as powerful diagnostic tools for identification and structural elucidation, Anal. Chem. 81 (2009).

DOI: 10.1021/ac900900y

[7] VSIA Latvian Standards EN ISO 6341: 2013, Water quality-determination of the inhibition of the mobility of Daphnia magna Straus (Cladocera, Crustacea)-acute toxicity test, Riga, (2013).

DOI: 10.3403/30213505

[8] Klüttgen B, Dülmer U, Engels M, Ratte HT, ADaM, an artificial freshwater for the culture of zooplankton. Water Res. 28 (1994) 743-746.

DOI: 10.1016/0043-1354(94)90157-0

[9] C. Zhang; C. Fang; G. Zeng, M. Jiang, Z. Yang, Z. Yu, M. Zhu, L. Shen, Quaternary ammonium compounds (QACs): A review on occurrence, fate and toxicity in the environment, Sci. Total Env. (2015) 352-362.

DOI: 10.1016/j.scitotenv.2015.03.007