5-Methyl-1h-Benzotriazole Emerging As Contaminant In Aqueous Environment And Development Of Analytical Method On Hplc

5-methyl-1H-benzotriazole (5-MBTA) also known as 5- Methyl-1H-1,2,3-benzotriazole, Tolutriazole, 5-Tolyltriazole and 5-Methylbenzotriazole is an organic compound. Soluble in alcohol, benzene, toluene, chloroform, dimethylformamide, and most organic solvents, slightly soluble in water, soluble in hot water, soluble in alkaline aqueous solution1.

5-MBTA is a complexing agent are not only widely used as anti-corrosives, but they also used for silver protection in dish washer detergents, chemical in dyes, pharmaceutical, fungicides, dry cleaning and additive in tobacco industry. 5- MBTA may be released into the environment through the manufacturing and use of products, due to the chemical and physical properties 5-MBTA is only partially removed in wastewater treatment plants. Discharge of treated municipal wastewater and controlled over-runs of combined wastewater sewers are potential point sources for 5-MBTA in rivers. However, 5-MBTA adversely affect the human health as skin irritation, serious eye irritation, Serious eye damage and may cause respiratory irritation.

The health risk assessment unit evaluates the health risks from contaminants in drinking water sources and develops health-based guidance values for groundwater,3,5the because of these issues, for considering the safety of aqueous environment and to protect humans from harmful effects of 5-MBTA, manufacturers closely need to monitor and control the residual 5-MBTA content in potable and non-potable waters

High Performance Liquid Chromatography (HPLC) technique is one of the choices to measure free 5-MBTA in Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants from wastewater and household sewage, both runoff (effluents) and well waters. 5-MBTA is a polar compound so soluble in water on sonication for 10-15 mins, directly soluble in hot water, methanol and acetonitrile and other polar solvents. No further sample preparation is required for 5-MBTA analysis using HPLC with Diode array detector (DAD) since 5-MBTA is directly dissolved in potable and non-potable waters that increase the efficiency of laboratory process related to analysis of 5-MBTA.

Analytical method was developed for analyzing 5-MBTA on HPLC which is amazingly simple technique, this methodology simplifies sample preparation and reduces total analysis. I believe this study not only provides information to manufacturers and regulatory authorities but does at a higher level of efficacy then current methods that enables work capacity for labs. This method allows to read 5-MBTA from to 0.05 ppm.

Author(s): Ravi Manne1*, R Iska1, Rama mohana reddy Appanagari1

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