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CU-Boulder technique finds major class of fracking chemicals no more toxic than common household substances; “fingerprinting”

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The Kendrick mass defect differentiates the proton, ammonium, and sodium adducts in both singly and doubly charged forms. Fracking fluid is largely composed of water and sand, but oil and gas companies also add a variety of other chemicals, including anti-bacterial agents, corrosion inhibitors and surfactants. —Thurman et al.

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