SU395775A1 - VPT B - Google Patents
VPT BInfo
- Publication number
- SU395775A1 SU395775A1 SU1773707A SU1773707A SU395775A1 SU 395775 A1 SU395775 A1 SU 395775A1 SU 1773707 A SU1773707 A SU 1773707A SU 1773707 A SU1773707 A SU 1773707A SU 395775 A1 SU395775 A1 SU 395775A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- microelements
- soil
- electrodialysis
- forms
- orthoboric acid
- Prior art date
Links
Landscapes
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
1one
Изобретение относитс к методам извлечени подвижных форм микроэлементов меди, цинка, марганца из тючв.This invention relates to methods for extracting mobile forms of microelements of copper, zinc, manganese from tyuts.
Известен способ извлечени подвижных форм микроэлементов с помощью растворителей (воды, кислот, щелочей), позвол ющих оценить общую концентрацию микроэлементов в почве.A known method for extracting mobile forms of microelements using solvents (water, acids, alkalis) allows the total concentration of microelements in the soil to be estimated.
Предлагаемый способ отличаетс от известных тем, что позвол ет охарактеризовать почвы не только по общему содержанию подвижных форм микроэлементов, но и но количеству их катионных и анионных форм.The proposed method differs from the known ones in that it is possible to characterize soils not only by the total content of mobile forms of microelements, but also by the number of their cationic and anionic forms.
Предложенный способ заключаетс в следующем .The proposed method is as follows.
Навеску почвы (5-Юг) подвергают электродиализу в 0,3 н.растворе ортоборной кислоты (НзВОз) в трехкамерном электродиализаторе тина Паули.A portion of the soil (5-South) is subjected to electrodialysis in a 0.3 n solution of orthoboric acid (NWOZ) in a three-chamber electrodialyzer of Tina Pauli.
Ортоборна кислота, вл сь более сильным поставщиком (донором) водородных ионов, чем вода, значительно снижает рН катионного раствора и мембраны, предотвращает гидролизные влени .Orthoboric acid, being a stronger supplier (donor) of hydrogen ions than water, significantly reduces the pH of the cationic solution and membrane, prevents hydrolysis phenomena.
Использование ортоборной кислоты ускор ет Процесс электродиализа и позвол ет проводить его без смены растворов в католитной и анолитной камерах.The use of orthoboric acid accelerates the process of electrodialysis and allows it to be carried out without changing the solutions in the catholyte and anolyte chambers.
В ходе электродиализа подвижные положительно и отрицательно зар женные формы микроэлементов концентрируютс в небольших объемах растворов в крайннх камерах электродиализатора .During electrodialysis, mobile, positively and negatively charged forms of microelements are concentrated in small volumes of solutions in the extreme chambers of the electrodialyzer.
Злектродиализ почв заканчиваетс через 1-2 час, когда сила тока в цепи резко снижаетс и стабилизируетс .Soil electrodialysis ends in 1-2 hours when the current in the circuit decreases sharply and stabilizes.
Растворы крайних камер сливают и раздельно анализируют атомно-абсорбционным спектрофотометрическим методом или методом амальгамной пол рографии с накоплепнем .Solutions of the outer chambers are drained and analyzed separately by an atomic absorption spectrophotometric method or an amalgam polarography method with accumulation.
Предмет изобретени Subject invention
Способ извлечени подвижных форм микроэлементов из почвы, отличающийс тем, что, с целью быстрого извлечени положительно и отрицательно зар женных форм микроэлементов меди, цинка, марганца, навеску почвы подвергают электродиализу в 0,3 н.растворе ортоборной кислоты.A method for extracting mobile forms of trace elements from soil, characterized in that, in order to quickly extract positively and negatively charged forms of trace elements copper, zinc, manganese, a portion of the soil is subjected to electrodialysis in 0.3 N. orthoboric acid solution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1773707A SU395775A1 (en) | 1972-04-12 | 1972-04-12 | VPT B |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1773707A SU395775A1 (en) | 1972-04-12 | 1972-04-12 | VPT B |
Publications (1)
Publication Number | Publication Date |
---|---|
SU395775A1 true SU395775A1 (en) | 1973-08-28 |
Family
ID=20510917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1773707A SU395775A1 (en) | 1972-04-12 | 1972-04-12 | VPT B |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU395775A1 (en) |
-
1972
- 1972-04-12 SU SU1773707A patent/SU395775A1/en active
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