(Metal)organic compounds like Methylmercury or Tributyltin (TBT) are environmental contaminants present in seafood, fish, water and sediments, and can be a major source of human exposure. The determination of such compounds can be challenging, since already the first step in sample preparation can be troublesome. Recovery of the analyte from the sample is not always quantitative, therefore recovery factors during isolation must be known or determined. The use of Isotope Dilution (ID) methodologies allow the determination of the concentration of these compounds in the sample, without the need for time consuming calibration, standard addition or recovery correction procedures, providing precise and accurate results. ISC Science offers a variety of isotopically enriched or labelled species like Methlymercury, Ethylmercury and Butyltin compounds for speciation analysis using Isotope Dilution Methodologies.
Certified Reference Materials (CRM) are provided with the following general characteristics:
|Our Certified Reference Materials can be used in Isotope Dilution Analysis to:||Determine the compound concentration in other materials; Precision control; Bias control.|
The different marketed standards are shown below. To see the specific characteristics of each product, click on "View product"
201Hg-enriched Methylmercury - Certified Reference Material
Isotopically enriched standard for the analysis of Methylmercury by Isotope Dilution.
199Hg-enriched Methylmercury - Certified Reference Material
Isotopically enriched compound for the analysis of Methylmercury by Isotope Dilution.
198Hg-enriched Ethylmercury - Certified Reference Material
Isotopically enriched compound for the analysis of Ethylmercury by Isotope Dilution.
119Sn-enriched Butyltin compounds - Certified Reference Material
Isotopically enriched compounds for the analysis of Monobutyltin (MBT), Dibutyltin (DBT) and Tributyltin (TBT) by Isotope Dilution.
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