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METHOD FOR PREPARATION OF STANDARD MIXTURES OF PETROLEUM PRODUCTS FOR QUANTITATIVE DETERMINATION OF PETROLEUM PRODUCTS IN WATER
METHOD FOR PREPARATION OF STANDARD MIXTURES OF PETROLEUM PRODUCTS FOR QUANTITATIVE DETERMINATION OF PETROLEUM PRODUCTS IN WATER
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机译:定量测定水中石油产品的石油产品标准混合物的制备方法
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摘要
FIELD: analytic chemistry. SUBSTANCE: method for preparation of standard mixtures of petroleum products for quantitative determination of petroleum products in water includes weighing of mixture of nonvolatile hydrocarbons with vapor pressure at 20 C of 1·10-4- 1·10-8 mm Hg; introduction of the mixture into water cleaned of petroleum products. From produced standard mixtures petroleum products are extracted by means of carbon tetrachloride. EFFECT: higher efficiency.
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