RU93038461A - METHOD FOR DETERMINING IRON (III) AND ALUMINUM (III) IN ACID SOLUTIONS - Google Patents

METHOD FOR DETERMINING IRON (III) AND ALUMINUM (III) IN ACID SOLUTIONS

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Publication number
RU93038461A
RU93038461A RU93038461/04A RU93038461A RU93038461A RU 93038461 A RU93038461 A RU 93038461A RU 93038461/04 A RU93038461/04 A RU 93038461/04A RU 93038461 A RU93038461 A RU 93038461A RU 93038461 A RU93038461 A RU 93038461A
Authority
RU
Russia
Prior art keywords
iii
stream
iron
aluminum
detected
Prior art date
Application number
RU93038461/04A
Other languages
Russian (ru)
Other versions
RU2043629C1 (en
Inventor
С.В. Жалованная
Е.И. Моросанова
Original Assignee
Химический факультет МГУ им.М.В.Ломоносова
Filing date
Publication date
Application filed by Химический факультет МГУ им.М.В.Ломоносова filed Critical Химический факультет МГУ им.М.В.Ломоносова
Priority to RU93038461A priority Critical patent/RU2043629C1/en
Priority claimed from RU93038461A external-priority patent/RU2043629C1/en
Application granted granted Critical
Publication of RU2043629C1 publication Critical patent/RU2043629C1/en
Publication of RU93038461A publication Critical patent/RU93038461A/en

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Claims (1)

Предлагаемое изобретение относится к области аналитической химии (непрерывный проточный анализ) и может быть использовано для одновременного автоматизированного определения содержания железа (III) и алюминия (III) в кислых растворах, вытяжках из почв, растворенных горных пород. Предложенный способ состоит в том, что пробу вводят в поток азотной кислоты, добавляют в него поток ксиленолового оранжевого и фотометрически детектируют содержание железа (III). После этого поток нагревают до 60 - 70oС и фотометрически детектируют суммарное содержание алюминия (III) и железа (III). Отличие предложенного способа состоит в том, что содержание железа (III) в потоке детектируют после введения в него потока азотной кислоты и ксиленолового оранжевого, после чего поток нагревают и детектируют суммарное содержание железа (III) и алюминия (III) в этом потоке. Таким образом, предложенный способ позволяет проводить одновременное определение железа (III) и алюминия (III) из одной пробы без разделения и характеризуется хорошей воспроизводимостью, селективностью и высокой производительностью. Предложенный способ расширяет возможности скоростного проточного анализатора RFA-300 (Alpkem, США), предназначенного для проведения однокомпонентных определений.The present invention relates to the field of analytical chemistry (continuous flow analysis) and can be used for simultaneous automated determination of the content of iron (III) and aluminum (III) in acidic solutions, extracts from soils, dissolved rocks. The proposed method consists in the fact that the sample is introduced into a stream of nitric acid, a stream of xylenol orange is added to it, and the content of iron (III) is detected photometrically. After that, the stream is heated to 60 - 70 o C and the total content of aluminum (III) and iron (III) is photometrically detected. The difference of the proposed method is that the content of iron (III) in the stream is detected after introducing a stream of nitric acid and xylenol orange into it, after which the stream is heated and the total content of iron (III) and aluminum (III) in this stream is detected. Thus, the proposed method allows the simultaneous determination of iron (III) and aluminum (III) from one sample without separation and is characterized by good reproducibility, selectivity and high performance. The proposed method extends the capabilities of the high-speed flow analyzer RFA-300 (Alpkem, USA), designed for one-component determination.
RU93038461A 1993-08-05 1993-08-05 Process of determination of iron (iii) and aluminium (iii) in acid liquors RU2043629C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93038461A RU2043629C1 (en) 1993-08-05 1993-08-05 Process of determination of iron (iii) and aluminium (iii) in acid liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93038461A RU2043629C1 (en) 1993-08-05 1993-08-05 Process of determination of iron (iii) and aluminium (iii) in acid liquors

Publications (2)

Publication Number Publication Date
RU2043629C1 RU2043629C1 (en) 1995-09-10
RU93038461A true RU93038461A (en) 1996-12-27

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ID=20145698

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93038461A RU2043629C1 (en) 1993-08-05 1993-08-05 Process of determination of iron (iii) and aluminium (iii) in acid liquors

Country Status (1)

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RU (1) RU2043629C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2674760C1 (en) * 2017-07-04 2018-12-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва" Method for photometric determination of iron (iii) in solutions of pure salts in presence of surface-active substance

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