SU401918A1 - METHOD OF COMPLEX DIMENSIONAL DETERMINATION - Google Patents
METHOD OF COMPLEX DIMENSIONAL DETERMINATIONInfo
- Publication number
- SU401918A1 SU401918A1 SU1617691A SU1617691A SU401918A1 SU 401918 A1 SU401918 A1 SU 401918A1 SU 1617691 A SU1617691 A SU 1617691A SU 1617691 A SU1617691 A SU 1617691A SU 401918 A1 SU401918 A1 SU 401918A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dimensional determination
- complex dimensional
- determination
- ash
- zinc
- Prior art date
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
1one
Изобретение относитс к аналитической химии , в частности к способам определени цинка.This invention relates to analytical chemistry, in particular to methods for the determination of zinc.
Известен способ комплексонометрического определени цинка с применением металлохромных индикаторов. В качестве индикаторов используют эриохром черный Т, дитизон, мурексид и др.The known method for the complexonometric determination of zinc using metallochromic indicators. Eriochrome black T, dithizone, murexide, etc. are used as indicators.
Предлагаемый способ отличаетс от известного тем, что в качестве индикатора используют 2-окси-3,5-динитро-азо-7-Аш кислоту-пикраминазо-Аш . Это повышает точность анализа .The proposed method differs from that in that 2-hydroxy-3,5-dinitro-azo-7-Ash acid-picraminazo-Ash is used as an indicator. This improves the accuracy of the analysis.
Пример. 5мл раствора сернокислого цинка помещают в коническую колбу емкостьюExample. 5 ml of zinc sulphate solution is placed in a conical flask
100мл, добавл ют 25мл дистиллированной воды , 10 мл аммначно-уксусного буфера с рН 10, 3 капли 0,1 /о-ного водного раствора пикраминазо-Аш и титруют 0,1 н. раствором трилона Б до перехода сннеп окраски в сиреневую. Затем методом расчета наход т содержание цинка в анализируемом растворе.100 ml, 25 ml of distilled water, 10 ml of ammonium acetic buffer with a pH of 10, 3 drops of a 0.1 / aqueous aqueous solution of picraminase-Ash are added and titrated with 0.1N. with a solution of Trilon B before the transition to the color of the dog snake lilac. Then, the zinc content in the analyzed solution is determined by the method of calculation.
Предмет изобретени Subject invention
Способ комплексонометрического определени цинка с применением металлохромных индикаторов, отличающийс тем, что, с целью повышени точности анализа, в качестве индикатора используют 2-окси-3,5-дннитро-азо7-Аш кислоту-пикраминазо-Аш.A method for the complexonometric determination of zinc using metallochromic indicators, characterized in that, in order to increase the accuracy of the analysis, 2-hydroxy-3,5-dinnitroazo-7-Ash acid-picraminazo-Ash is used as an indicator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1617691A SU401918A1 (en) | 1971-02-01 | 1971-02-01 | METHOD OF COMPLEX DIMENSIONAL DETERMINATION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1617691A SU401918A1 (en) | 1971-02-01 | 1971-02-01 | METHOD OF COMPLEX DIMENSIONAL DETERMINATION |
Publications (1)
Publication Number | Publication Date |
---|---|
SU401918A1 true SU401918A1 (en) | 1973-10-12 |
Family
ID=20464982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1617691A SU401918A1 (en) | 1971-02-01 | 1971-02-01 | METHOD OF COMPLEX DIMENSIONAL DETERMINATION |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU401918A1 (en) |
-
1971
- 1971-02-01 SU SU1617691A patent/SU401918A1/en active
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