SU703762A1 - Method of quantitative determining of formaldenyde in solutions - Google Patents

Method of quantitative determining of formaldenyde in solutions

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Publication number
SU703762A1
SU703762A1 SU772543748A SU2543748A SU703762A1 SU 703762 A1 SU703762 A1 SU 703762A1 SU 772543748 A SU772543748 A SU 772543748A SU 2543748 A SU2543748 A SU 2543748A SU 703762 A1 SU703762 A1 SU 703762A1
Authority
SU
USSR - Soviet Union
Prior art keywords
solutions
formaldenyde
quantitative determining
quantitative
formaldehyde
Prior art date
Application number
SU772543748A
Other languages
Russian (ru)
Inventor
Герман Филиппович Дрегваль
Валентина Николаевна Кузнецова
Нина Федоровна Казаринова
Александра Захаровна Усменцева
Original Assignee
Всесоюзный Научно-Исследовательский Институт Гигиены И Токсикологии Пестицидов,Полимерных И Пластических Масс
Всесоюзный научно-исследовательский институт сахарной промышленности
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Application filed by Всесоюзный Научно-Исследовательский Институт Гигиены И Токсикологии Пестицидов,Полимерных И Пластических Масс, Всесоюзный научно-исследовательский институт сахарной промышленности filed Critical Всесоюзный Научно-Исследовательский Институт Гигиены И Токсикологии Пестицидов,Полимерных И Пластических Масс
Priority to SU772543748A priority Critical patent/SU703762A1/en
Application granted granted Critical
Publication of SU703762A1 publication Critical patent/SU703762A1/en

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  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Description

: У .. I . . ; . -V ; Изобретение относитс  к области ана литической химии, а именно к способам количественного определени  форм(зпьде:гида в растворах. Известен способ количественного опре;аелени  формальдегида в растворе путём обработки анализируемой пробы 2,4-дтштрбфенвпгидразинЬм с последующим отфипьт вывавием в взвешнванв. ем полученнсгго осадка. Недостатком способа  вл етс  низка  чувствительность и длительность рпредеНаиболее близким к опис1ьгваеМому изобретению по технической сущности И достигаемому результату  вл етс  спосо количественного определени  формальдегида в растворах путем обработки анализируемой пробы димедоном при температуре 8O-lOCfC с после дгкщнм охлаждением , отфильтровыванием и взвешивани ем полученного осадка. Недостатком способа  вл етс  низка  чувствительнсють определени , открываемый минимум 36 м 2, Целью изобретени   вл етс  повышение чувствительности определени . Поставленна  пель достигаетс  спи- сываемым способом количественного определени  формальдегида, заключающимс  в (обработке анализируемой пробы димедоном при температуре 8O-lOCfC с последующей обработкой полученного раствора хлороформом, концентрированием хлороформного сло  и :фоматографированйем концентрата. Отличительным признаком с.пособа  вл етс  обработка полученного раствора хлороформом, концентрирование хлороформенного сло  и хроматографирование концентрата . Пример, Определение формальдегида в крове. К 2 мл плазмы крови прибавл ют 2 мл 5%-ного раствора трихлоруксусной кислоы , центрифугируют 15 мин при 200О об/мин  : U .. i. . ; . -V; The invention relates to the field of analytical chemistry, in particular to methods for quantitative determination of forms (from: solution guide. A known method for quantitative determination; formaldehyde in solution by treatment of a sample of 2,4-dbstrbfenvggidrazin, followed by the sample, it is imperative. The disadvantage of this method is the low sensitivity and duration of the preeminently closest to the described invention to the technical essence And the achieved result is quantitative determination of formaldehyde in solutions by treating the sample being analyzed with Dimedone at a temperature of 8O-LOCfC, after being cooled, filtered and weighed by the resulting precipitate. achieved by the write-down method of quantitative determination of formaldehyde, consisting in (processing of the sample being analyzed with Dimedone at a temperature of 8O-LOCfC, followed by treatment of the resulting solution with chloroform, concentration of the chloroform layer and: concentrate chromatography. A distinctive feature of the method is the treatment of the resulting solution with chloroform, the concentration of the chloroform layer and the chromatography of the concentrate. Example, Definition of formaldehyde in the shelter. To 2 ml of blood plasma was added 2 ml of 5% aqueous solution of trichloroacetic acid, centrifuged for 15 min at 200 O rpm

SU772543748A 1977-11-17 1977-11-17 Method of quantitative determining of formaldenyde in solutions SU703762A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772543748A SU703762A1 (en) 1977-11-17 1977-11-17 Method of quantitative determining of formaldenyde in solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772543748A SU703762A1 (en) 1977-11-17 1977-11-17 Method of quantitative determining of formaldenyde in solutions

Publications (1)

Publication Number Publication Date
SU703762A1 true SU703762A1 (en) 1979-12-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU772543748A SU703762A1 (en) 1977-11-17 1977-11-17 Method of quantitative determining of formaldenyde in solutions

Country Status (1)

Country Link
SU (1) SU703762A1 (en)

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