Drinking Water Calibration Standards for Monitoring Disinfectant Byproducts

By: Vicki Yearick, AnalytiX Volume 6 Article 1

Analytical tools from Supelco to help evaluate the presence of waterborne pollutants

By Vicki Yearick, Market Segment Manager, Supelco …vyearick@sial.com

However, disinfection byproducts are formed when chlorine and other chemical disinfectants react with naturally present organic compounds in the water. These byproducts have the potential to produce adverse human health effects. Laboratories supporting water systems are required by law to monitor the levels of disinfectant byproducts present in the water supply. Monitoring is typically performed by chromatographic analysis.

The table below lists Supelco brand quantitative disinfectant byproduct calibration standards available from Sigma-Aldrich as mixes or individual component solutions. A Certificate of Analysis is provided with each product. The single and multi-component solutions are certified for purity, identity and concentration. Each component is guaranteed to be within 0.5% of the stated concentration.

 

A large number of public water systems rely on surface water for some, if not all, of their drinking water supply. These surface waters are susceptible to contamination by a variety of microbes, including Escherichia coli, Salmonella typhi and Vibrio cholerae. To prevent illness from the consumption of water contaminated with pathogenic microorganisms, public drinking water sources are routinely disinfected through the use of chemicals, ozone or UV exposure.

Product List ......... Drinking Water Disinfection Byproduct Standards

Mixes

 

Cat. No. Brand Description   Package Size
48045 Supelco Halogenated Volatiles Mix A, 2,000 μg/mL each in acetone
Bromodichloromethane
Bromoform
Carbon tetrachloride
Chloroform
Dibromochloromethane
1,2-Dibromo-3-chloropropane
1,2-Dibromoethane
Tetrachloroethylene
1,1,1,-Trichloroethane
Trichloroethylene
1 mL
48047 Supelco EPA 552 Halogenated Acetic Acids Mix, 2,000 μg/mL each in MTBE
Bromoacetic acid
Bromochloroacetic acid
Chloroacetic acid
Dibromoacetic acid
Dichloroacetic acid
Trichloroacetic acid
1 mL
47598-U Supelco EPA 552 Esters Calibration Mix, 1,000 μg/mL each in MTBE
Methyl bromoacetate
Methyl bromochloroacetate
Methyl chloroacetate
Methyl dibromoacetate
Methyl dichloroacetate
Methyl trichloroacetate
1 mL
47652-U Supelco EPA 552.1 Acids Calibration Mix with Surrogate, Varied conc. in MTBE
Bromoacetic acid (200 μg/mL)
Bromochloroacetic acid (200 μg/mL)
2-Bromopropionic acid (100 μg/mL)
Chloroacetic acid (300 μg/mL)
Dalapon (200 μg/mL)
Dibromoacetic acid (100 μg/mL)
Dichloroacetic acid (300 μg/mL)
Trichloroacetic acid (100 μg/mL)
1 mL
47629-U Supelco EPA 552.2 Acids Calibration Mix ICR, Varied conc. in MTBE
Bromoacetic (200 μg/mL)
Bromochloroacetic acid (200 μg/mL)
Bromodichloroacetic acid (200 μg/mL)
2-Bromopropionic acid (100 μg/mL)
Chloroacetic acid (300 μg/mL)
Chlorodibromoacetic acid (200 μg/mL)
Dalapon (200 μg/mL)
Dibromoacetic acid (100 μg/mL)
Dichloroacetic acid (300 μg/mL)
Tribromoacetic acid (100 μg/mL)
Trichloroacetic acid (100 μg/mL)
Chlorodibromoacetic acid (200 μg/mL)
1 mL
47630-U Supelco EPA 552.2 Esters Calibration Mix ICR, Varied conc. in MTBE 1 mL
Methyl bromoacetate (200 μg/mL)
Methyl bromochloroacetate (200 μg/mL)
Methyl dibromoacetate (100 μg/mL)
Methyl bromodichloroacetate (200 μg/mL)
Methyl-2-bromopropionate (100 μg/mL)
Methyl chloroacetate (300 μg/mL)
Methyl chlorodibromoacetate (200 μg/mL)
Dalapon methyl ester (200 μg/mL)
Methyl dibromoacetate (100 μg/mL)
Methyl dichloroacetate (300 μg/mL)
Methyl tribromoacetate (100 μg/mL)
Methyl trichloroacetate (100 μg/mL)
1 mL
47787 Supelco EPA 552.2 Acids Calibration Mix, Varied conc. in MTBE
Bromoacetic (400 μg/mL)
Bromochloroacetic acid (400 μg/mL)
Bromodichloroacetic acid (400 μg/mL)
Chloroacetic acid (600 μg/mL)
Chlorodibromoacetic acid (1000 μg/mL)
Dibromoacetic acid (200 μg/mL)
Dichloroacetic acid (600 μg/mL)
Trichloroacetic acid (200 μg/mL)
Tribromoacetic acid (200 μg/mL)
1 mL
47788 Supelco EPA 552.2 Esters Calibration Mix, Varied conc. in MTBE
Methyl bromoacetate (400 μg/mL)
Methyl bromochloroacetate (400 μg/mL)
Methyl bromodichloroacetate (400 μg/mL)
Methyl chloroacetate (600 μg/mL)
Methyl chlorodibromoacetate (1000 μg/mL)
Methyl dibromoacetate (200 μg/mL)
Methyl dichloroacetate (600 μg/mL)
Methyl trichloroacetate (200 μg/mL)
Methyl tribromoacetate (200 μg/mL)
1 mL

 

Single Component Solutions

Cat. No. Brand Description Concentration Package Size
47335-U Supelco Chloral hydrate 1,000 μg/mL in acetonitrile 1 mL
47655-U Supelco Bromoacetic acid 1,000 μg/mL in MTBE 1 mL
47662-U Supelco Methyl bromoacetate 1,000 μg/mL in MTBE 1 mL
47659-U Supelco Bromochloroacetic acid 1,000 μg/mL in MTBE 1 mL
47666-U Supelco Methyl bromochloroacetate 1,000 μg/mL in MTBE 1 mL
47278 Supelco Bromodichloroacetic acid 1,000 μg/mL in MTBE 1 mL
47761 Supelco Methyl bromodichloroacetate 1,000 μg/mL in MTBE 1 mL
47654-U Supelco Chloroacetic acid 1,000 μg/mL in MTBE 1 mL
47661-U Supelco Methyl chloroacetate 1,000 μg/mL in MTBE 1 mL
47277 Supelco Chlorodibromoacetic acid 1,000 μg/mL in MTBE 1 mL
47762 Supelco Methyl chlorobromoacetate 1,000 μg/mL in MTBE 1 mL
47656-U Supelco Dalapon 1,000 μg/mL in MTBE 1 mL
47663-U Supelco Dalapon methyl ester 1,000 μg/mL in MTBE 1 mL
47660-U Supelco Dibromoacetic acid 1,000 μg/mL in MTBE 1 mL
47667-U Supelco Methyl dibromoacetate 1,000 μg/mL in MTBE 1 mL
47657-U Supelco Dichloroacetic acid 1,000 μg/mL in MTBE 1 mL
47664-U Supelco Methyl dichloroacetate 1,000 μg/mL in MTBE 1 mL
47662-U Supelco Methyl bromoacetate 1,000 μg/mL in MTBE 1 mL
47730-U Supelco Methyl tribromoacetate 1,000 μg/mL in MTBE 1 mL
47658-U Supelco Trichlorocetic acid 1,000 μg/mL in MTBE 1 mL
47665-U Supelco Methyl trichlorocetate 1,000 μg/mL in MTBE 1 mL

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Materials

     
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