6 services found
Brooks Applied Labs Services
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Method Development Services
Brooks Applied Labs offers contract method development services for ultra-trace level metals analysis, metals speciation, the analysis of complex sample matrices, and non-routine methodologies. We have worked with industry-sponsored organizations to investigate the applicability of these methods to various complex ...
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Trace Elements Analysis
Inductively coupled plasma – mass spectrometry (ICP-MS) is widely recognized as one of the most accurate and precise analytical techniques for the determination of many trace elements in a wide variety of sample types. However, analyses using a conventional instrument configuration have also been persistently challenging due to spectral interferences that can severely compromise the accuracy of reported results.
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Arsenic (As) for Trace Elements Analysis
Arsenic is naturally-occurring throughout the environment and also widely used as a preservative for treated wood and as a pesticide in fields where we grow our food. Because of its chemical nature, it is frequently bioavailable and easily absorbed. Accurate and precise measurements of this classified human carcinogen are critical for managing our environment and protecting human health and safety. At Brooks Applied Labs, we have both the innovation and ...
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Mercury (Hg) for Trace Elements Analysis
Mercury is not very abundant in the planet’s crust; however, even modest increases in the quantity of mercury being introduced into the global environment is a matter of considerable and growing concern. Mercury contamination can threaten the health of humans and wildlife, from industrial sites to the most remote wilderness areas. Mercury is considered a global pollutant since it can affect the environment in areas far removed from the point of its ...
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Trace Elements Speciation
Brooks Applied Labs has developed an array of analytical techniques for trace metals speciation depending on the sample matrix and target molecules. Due to the unique chemical properties of different trace metals molecules one analytical method will not work for all species and all sample matrices. Through in-house research and method development and collaborations with industry scientists at BAL have generated robust preparatory and analytical methods to support most trace metals speciation requests.
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Arsenic Speciation (As)
The experience of Brooks Applied Labs comes into play when arsenic speciation in difficult matrices is to be determined. We have developed a variety of different arsenic testing methods that utilize different chromatographic separation modes. These methods allow us to provide the lowest detection limits to our clients for their toughest samples. For instance, arsenic speciation in a 10,000 ppm Fe, Ca, Al and high sulfate matrix or highly saline samples ...
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Chromium Speciation (Cr)
Chromium (Cr) is a polyvalent element and can exist in several distinct oxidation states, but only trivalent chromium [Cr(III)] and hexavalent chromium [Cr(VI)] occur with any frequency in the natural environment. The mobility, bioavailability, and toxicity of chromium largely depend on which of these two chemical species is prevalent. The speciation of chromium is determined by the processes that control reduction/oxidation reactions in the environment. ...
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Methods
The EPA 1600-series methods for low-level metals analysis and metals speciation were created in response to the growing awareness that some metals with very low concentrations can have big impacts on the environment, and that the form of the metal affects the bioavailability and mobility. These methods were designed to lower detection limits, minimize the risk of contamination, and provide robust quality control procedures for defensible low-level metals data. The trace metals analysis and metal speciation methods used by Brooks Applied Labs are based on, or were the inspiration for, these EPA 1600-series methods and they are specifically designed for ultra-trace detection and cutting-edge speciation. Sampling, preservation, and sample preparation techniques are optimized to minimize contamination and ensure high levels of data accuracy and precision.
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Selective Sequential Extractions (SSE)
When investigating mercury contaminated soils at legacy mining and industrial sites, measurements of the concentrations of total mercury in the soil are clearly necessary. However, the best approach to site remediation sometimes requires a fuller understanding of the environmental bioavailability and mobility of the particular mercury compounds found at the ...