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Laboratory breath analyzers used to determine the hydrogen content in a breath sample, usually expressed as parts per million (ppm). These analyzers typically use electrochemical or gas-chromatography measuring methods. Some of these analyzers can also determine methane and/or carbon dioxide content in the breath sample. Hydrogen breath analyzers are mostly used to determine carbohydrate bacteriological breakdown deficiencies and malabsorption in the small intestines due to bacterial overgrowth.
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