Изображение на обложке

Метод Дюма: приборное обеспечение и основные области применеия

E. A. Zauer

Аннотация


В предлагаемом обзоре рассмотрены устройство и работа основных составляющих автоматических анализаторов для определения белка по общему азоту методом Дюма: автоматического пробоотборника (автосемплера), печи сжигания, печи восстановления продуктов сжигания, ловушек для воды и диоксида углерода, а также детектора.

Систематизированы технические характеристики основных узлов автоматических анализаторов для определения азота методом Дюма, выпускаемых такими известными фирмами, как C. Gerhardt и ELEMENTAR Analysensysteme GmbH (Германия), Buchi (Швейцария), Foss Tecator (Дания, Швеция), VELP Scientifica, EuroVector Elemental Analyzer и NC Technologies (Италия), PerkinElmer и LECO (США), Richon, Hanon Group и Changsha Kaiyuan InstrumentS Co., LTD. CKIC (Китай), Costech Microanalytical (Эстония).

Также приведены данные об основных аналитических характеристиках приборов: количестве, массе (объеме) твердых и жидких проб, времени анализа, производительности установок, пределе обнаружения и диапазоне измерения содержания общего азота, коэффициенте пересчета общего азота в белок и используемом программном обеспечении.

Представлены основные области применения метода – анализ продуктов питания животного и растительного происхождения (традиционных, нетрадиционных, спортивных добавок) и сельхозпродукции.

Ключевые слова


метод Дюма; определение белка по общему азоту; аппаратурное оформление; продукты питания животного и растительного происхождения

Полный текст:

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Литература


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DOI: https://doi.org/10.15826/analitika.2026.30.1.001

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