RU93033767A - METHOD FOR DETERMINATION OF BENZENE AND ITS METHYL DERIVATIVES - Google Patents

METHOD FOR DETERMINATION OF BENZENE AND ITS METHYL DERIVATIVES

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Publication number
RU93033767A
RU93033767A RU93033767/25A RU93033767A RU93033767A RU 93033767 A RU93033767 A RU 93033767A RU 93033767/25 A RU93033767/25 A RU 93033767/25A RU 93033767 A RU93033767 A RU 93033767A RU 93033767 A RU93033767 A RU 93033767A
Authority
RU
Russia
Prior art keywords
solution
determination
benzene
treated
added
Prior art date
Application number
RU93033767/25A
Other languages
Russian (ru)
Other versions
RU2069351C1 (en
Inventor
В.К. Шорманов
Original Assignee
В.К. Шорманов
Filing date
Publication date
Application filed by В.К. Шорманов filed Critical В.К. Шорманов
Priority to RU93033767A priority Critical patent/RU2069351C1/en
Priority claimed from RU93033767A external-priority patent/RU2069351C1/en
Publication of RU93033767A publication Critical patent/RU93033767A/en
Application granted granted Critical
Publication of RU2069351C1 publication Critical patent/RU2069351C1/en

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Claims (1)

Изобретение относится к аналитической химии, фотометрическим методам анализа материалов и может быть использовано отделами технического контроля химических заводов, санитарно - эпидемиологическими станциями. С целью повышения селективности определения анализируемую пробу обрабатывают 5% раствором оксида ртути (II) в 60% - ой азотной кислоте при 100oС, к реакционной смеси прибавляют раствор гидроксида натрия до pH 5 - 6, обрабатывают раствором 2, 3, 5-трифенилтетразолия хлорида, экстрагируют трихлорметаном, окрашенный экстракт отделяют, к экстракту прибавляют этанол в количестве 20% от общего объема образующегося раствора, а раствор фотометрируют.The invention relates to analytical chemistry, photometric methods of analysis of materials and can be used by the departments of technical control of chemical plants, sanitary - epidemiological stations. In order to increase the selectivity of the determination, the analyzed sample is treated with a 5% solution of mercury (II) oxide in 60% nitric acid at 100 o C, sodium hydroxide solution is added to the reaction mixture to pH 5-6, treated with a solution of 2, 3-triphenyltetrazolium chloride, extracted with trichloromethane, the colored extract is separated, ethanol is added to the extract in an amount of 20% of the total volume of the resulting solution, and the solution is photometric.
RU93033767A 1993-07-01 1993-07-01 Method for determining benzene and methyl derivatives thereof RU2069351C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93033767A RU2069351C1 (en) 1993-07-01 1993-07-01 Method for determining benzene and methyl derivatives thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93033767A RU2069351C1 (en) 1993-07-01 1993-07-01 Method for determining benzene and methyl derivatives thereof

Publications (2)

Publication Number Publication Date
RU93033767A true RU93033767A (en) 1996-02-20
RU2069351C1 RU2069351C1 (en) 1996-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU93033767A RU2069351C1 (en) 1993-07-01 1993-07-01 Method for determining benzene and methyl derivatives thereof

Country Status (1)

Country Link
RU (1) RU2069351C1 (en)

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