SU154426A1 - - Google Patents
Info
- Publication number
- SU154426A1 SU154426A1 SU763700A SU763700A SU154426A1 SU 154426 A1 SU154426 A1 SU 154426A1 SU 763700 A SU763700 A SU 763700A SU 763700 A SU763700 A SU 763700A SU 154426 A1 SU154426 A1 SU 154426A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- arsenazo iii
- curve
- solution
- isoamyl alcohol
- protactini
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 7
- DAGCXOKMRRZFBG-WTBAQZMLSA-L disodium;(3Z)-3-[(2-arsonophenyl)hydrazinylidene]-5-hydroxy-4-oxonaphthalene-2,7-disulfonate Chemical group [Na+].[Na+].O=C1C=2C(O)=CC(S([O-])(=O)=O)=CC=2C=C(S([O-])(=O)=O)\C1=N/NC1=CC=CC=C1[As](O)(O)=O DAGCXOKMRRZFBG-WTBAQZMLSA-L 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- PHTQWCKDNZKARW-UHFFFAOYSA-N Isoamyl alcohol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 description 4
- XZQTTYYQLUHMIZ-ZEVMZUSBSA-N (2S)-1-[(2R)-2-[[(2S,3R)-2-[(2-amino-3-hydroxy-4-methylbenzoyl)amino]-3-hydroxybutanoyl]amino]-3-methylbut-3-enoyl]-N,5-dimethyl-N-[2-[methyl-[(2S)-3-methyl-1-oxobutan-2-yl]amino]-2-oxoethyl]pyrrolidine-2-carboxamide Chemical compound CC(C)[C@@H](C=O)N(C)C(=O)CN(C)C(=O)[C@@H]1CCC(C)N1C(=O)[C@@H](C(C)=C)NC(=O)[C@H]([C@@H](C)O)NC(=O)C1=CC=C(C)C(O)=C1N XZQTTYYQLUHMIZ-ZEVMZUSBSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- FHUDAMLDXFJHJE-UHFFFAOYSA-N 1,1,1-trifluoropropan-2-one Chemical compound CC(=O)C(F)(F)F FHUDAMLDXFJHJE-UHFFFAOYSA-N 0.000 description 1
- 230000036698 Distribution coefficient Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
Description
Известен экстракционно-фотометрический способ определени протактини (V), в котором в качестве реагента используют теноилтрифторацетон . Однако указанный способ малочувствителен, а также обладает небольшой избирательностью реакции на протактиний (V).An extraction photometric method for the determination of protaktin (V) is known, in which tenoyl trifluoroacetone is used as a reagent. However, this method is insensitive, and also has a low selectivity of reaction to protactinium (V).
Предложен экстракционно-фотометрический способ определени протактини (V), в котором в качестве реагента примен ют арсеназо III.An extraction-photometric method for the determination of protactin (V) is proposed, in which Arsenazo III is used as a reagent.
Способ осуществл ют следующим образом. Комплекс протактини (V) ;в среде серной или сол ной кислоты извлекают равным объемом изоамилового спирта и фотометрируют на спектрофотометре СФ-4.The method is carried out as follows. The complex of protaktini (V); in an environment of sulfuric or hydrochloric acid is extracted with an equal volume of isoamyl alcohol and photometrically on an SF-4 spectrophotometer.
На фиг. 1 показана зависимость коэффициента распределени протактини (V) от концентрации раствора серной кислоты, где: крива / иллюстрирует эту зависимость при отсутствии в растворе арсеназо III, крива 2 - при наличии арсеназо III. На фиг. 2 приведены кривые светопоглощени арсеназо III (крива /) и комплекса протактини с арсеназо III (крива 2) в изоамиловом спирте.FIG. Figure 1 shows the dependence of the distribution coefficient of protactin (V) on the concentration of sulfuric acid solution, where: curve / illustrates this dependence in the absence of arsenazo III in solution, curve 2 — in the presence of arsenazo III. FIG. Figure 2 shows the light absorption curves of arsenazo III (curve /) and the complex of protactini with arsenazo III (curve 2) in isoamyl alcohol.
Пример.Example.
0,20-1,00 мл исходного сернокислого раствора, содержащего 1 -10 Y протактини , помещают в пробирку емкостью 5 мл. добавл ют 0,80 мл 1 10 М водного раствора арсеназо III и концентрированную серную кислоту из расчета, чтобы конечна кислотность раствора была 7-8 н. Образующийс комплекс протактини с арсеназо III экстрагируют 2 мл изоамилового спирта.- Равновесие достигаетс уже после одноминутного взбалтывани . Изоамиловый спирт перед использованием предварительно взбалтывают с 7 н. раствором серной кислоты.0.20-1.00 ml of the original sulfate solution containing 1-10 Y protactini is placed in a 5 ml test tube. 0.80 ml of a 1-10 M aqueous solution of Arsenazo III and concentrated sulfuric acid are added so that the final acidity of the solution is 7-8 n. The resulting protactini complex with arsenazo III is extracted with 2 ml of isoamyl alcohol. Equilibrium is reached after one minute agitation. Isoamyl alcohol before use is pre-shaken with 7 g. sulfuric acid solution.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU154426A1 true SU154426A1 (en) |
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