Tissues & Biological Samples
It isn’t pollution that’s harming the environment. It’s the impurities in our air and water that are doing it.
– Dan Quayle
Tissue sample analysis is critical to several industry sectors including environmental toxicology, human biomonitoring, and wildlife monitoring. However, handling, preparation, and analysis of biological samples can be challenging to many labs, especially when the target analytes are low-level metals and metals species. Issues with inhomogeneity and contamination can lead to poor quality data.
Brooks Applied Labs has the expertise and technology to provide the best possible data quality for biological samples. We helped establish clean-room and sampling techniques for the trace metals industry and continue to be leaders in this area as consultants to other laboratories and instructors of special sampling methods. We also use the most advanced technologies available to minimize analytical interferences, including dynamic reaction cell (DRC) and collision cell interference reduction technologies associated with all of our ICP-MS instruments, which are especially useful for the determinations of arsenic, chromium, iron, and selenium concentrations in biological samples.
Tissue & Biological Testing Services We Offer:
Brooks Applied Labs recently demonstrated the superiority of the Appendix to EPA Method 1631 for the total mercury analysis of tissue samples. A comparison of data from samples prepared and analyzed in 2012 using both methods EPA 7471 and the Appendix to EPA Method 1631 demonstrated that mercury recoveries were consistently biased low by approximately 20% when prepared with EPA 7471. Download our “Does EPA Method 7471 Accurately Measure Mercury Concentrations in Fish?” poster.
Brooks Applied Labs has also developed a method for the methylmercury analysis of samples that contain dense keratin filaments (e.g., fur, feathers, nails, antlers). Analyses of these types of samples typically produced undetectable results that had little value in wildlife monitoring studies, because earlier digestion methods were not effective with these matrices. Development of an effective method was vital for nondestructive sample collection techniques for the determination of methylmercury concentrations in mammals and birds. Now, scientists involved in wildlife conservation studies have an excellent tool to assess the true impact of mercury contamination in the subject species without diminishing the population in the process. Download our Determining Methylmercury Concentrations in Mammals and Birds Utilizing Nondestructive Sample Collection Techniques Article.
Types of Testing We Do:
Homogenization blanks are typically analyzed for the analyte of interest to assess potential contamination of samples during the homogenization procedure. Homogenization blanks are collected on any new piece of homogenization equipment, whenever a new technician is homogenizing samples, or upon the request of the client.
Brooks Applied Labs has some of the lowest detection limits commercially available to our clients. View our MDL & MRL Table.