SU1605189A1 - Method of determining iron (ii) and iron (iii) in case of joint presence thereof - Google Patents
Method of determining iron (ii) and iron (iii) in case of joint presence thereof Download PDFInfo
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- SU1605189A1 SU1605189A1 SU884455540A SU4455540A SU1605189A1 SU 1605189 A1 SU1605189 A1 SU 1605189A1 SU 884455540 A SU884455540 A SU 884455540A SU 4455540 A SU4455540 A SU 4455540A SU 1605189 A1 SU1605189 A1 SU 1605189A1
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- iron
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Abstract
Изобретение относитс к кинетическим способам определени железа и обеспечивает упрощение процесса анализа и повышение чувствительности и точности определени железа (II) и железа (III) при совместном присутствии. Способ основан на каталитическом действии общего железа на хемилюминесцентную реакцию окислени моминола пероксикаприновой кислотой и железа II на реакцию окислени люминола пероксикаприловой кислотой. Оптимальные услови анализа достигаютс при интегрировании сигнала хемилюминесцентного излучени за врем 15 - 60 с. Минимальна обнаружима концентраци 0,28 нг/мл, относительное стандартное отклонение при содержании железа 0,2 - 1,0 мкг/мл составл ет 0,8-5,0%. 1 з.п. ф-лы.The invention relates to kinetic methods for the determination of iron and provides a simplification of the analysis process and an increase in the sensitivity and accuracy of the determination of iron (II) and iron (III) with joint presence. The method is based on the catalytic effect of total iron on the chemiluminescent oxidation reaction of mominol with peroxycapric acid and iron II on the oxidation reaction of luminol with peroxiploric acid. Optimum analysis conditions are achieved by integrating the chemiluminescent radiation signal within 15 - 60 seconds. The minimum detectable concentration of 0.28 ng / ml, the relative standard deviation with iron content of 0.2 - 1.0 µg / ml is 0.8-5.0%. 1 hp f-ly.
Description
Изобретение относитс к области аналитической химии, в частности к кинетическим методам анализа, и может быть использовано дл определени различных форм железа при совместном присутствии.The invention relates to the field of analytical chemistry, in particular to kinetic methods of analysis, and can be used to determine various forms of iron in the presence of a joint.
Целью изобретени вл етс упрощение процесса анализа и повышение чувствительности и точности анализа.The aim of the invention is to simplify the analysis process and increase the sensitivity and accuracy of the analysis.
Пример. Навеску KaCl 3,0- 3,2 г перенос т в мерную колбу на. 0,25 МП, раствор ют и довод т до метки О, 1 н. раствором серной кислоты. В кювету внос т 1 мл 10 М щелочного раствора люминола, 5 мп боратногоExample. A portion of KaCl 3.0–3.2 g was transferred to a volumetric flask. 0.25 MP, dissolved and adjusted to the mark O, 1 n. sulfuric acid solution. 1 ml of 10 M lyuminol alkaline solution, 5 mp borate are added to the cuvette.
раствора (|di 9,8), 2 мл дважды перегнанной воды и 1 мл зтаноль- ного раствора пероксикаприновой кислоты . Кювету устанавливают в кюветное отделение хемилюминесцентного фотометра , приливают 1 мл анализируемого раствора и записывают кинетическую кривую распределени интенсивности хеми- люминесценции во времени. Содержание общего железа определ ют по градуиро- вочному графику.a solution (| di 9,8), 2 ml of double distilled water and 1 ml of a thanol solution of peroxycaric acid. The cuvette is placed in the cuvette compartment of a chemiluminescent photometer, 1 ml of the test solution is poured, and the kinetic curve of the distribution of the chemiluminescence intensity over time is recorded. The total iron content is determined by calibration curve.
Дал,ее анализ провод т аналогично изложенному, только вместо раствора пероксикаприновой кислоты приливают раствор пероксикаприловой кислоты. ПоHe gave it, the analysis was carried out similarly to the above, but instead of a solution of peroxycaric acid, a solution of peroxycrylic acid was added. By
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о елabout ate
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градуировочному графику определ ют содержание железа.(II) в анализируемом растворе. По разнице между общим содержанием железа и содержанием желе- за (II) определ ют содержание железаthe calibration curve determines the content of iron. (II) in the analyzed solution. The difference between the total iron content and the iron content (II) determines the iron content
(III).(Iii)
Экспериментальные исследовани показали , что .оптимальным условием регистрации хемилюминесцентного излу- чени вл етс измерение сигнала за врем интегрировани 15-60 с, поскольку при этом наблюдаетс линейна зависимость между содержанием железа и в ичиной аналитического сигнала. . Experimental studies have shown that the optimal condition for the detection of chemiluminescent radiation is measurement of the signal during the integration time of 15-60 s, since a linear relationship between the iron content and the analytical signal is observed. .
Использование предлагаемого способа обеспечивает упрощение процесса анали- за благодар пр мому определению желез а путем регистрации хемилюминесцентного излучени ; повышение чувствительности .определени на 1-1,5 пор дка величины (минимальна обнаружима концентра- ци 0,28 нг/мл); повышение точности определени различных форм железа в 2 раза (относительное стандартное от- The use of the proposed method simplifies the analysis process by directly determining the glands a by registering chemiluminescent radiation; increasing the sensitivity of the determination by 1-1.5 times the order of magnitude (the minimum detectable concentration is 0.28 ng / ml); improving the accuracy of determining various forms of iron by 2 times (relative standard
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884455540A SU1605189A1 (en) | 1988-07-05 | 1988-07-05 | Method of determining iron (ii) and iron (iii) in case of joint presence thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884455540A SU1605189A1 (en) | 1988-07-05 | 1988-07-05 | Method of determining iron (ii) and iron (iii) in case of joint presence thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1605189A1 true SU1605189A1 (en) | 1990-11-07 |
Family
ID=21387668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884455540A SU1605189A1 (en) | 1988-07-05 | 1988-07-05 | Method of determining iron (ii) and iron (iii) in case of joint presence thereof |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1605189A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323133A (en) * | 2011-10-09 | 2012-01-18 | 武钢集团昆明钢铁股份有限公司 | Method for measuring total iron content in directly-reduced iron |
-
1988
- 1988-07-05 SU SU884455540A patent/SU1605189A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Шарло Г. Методы аналитической химии. М.: Хими , 1969, т. 2, с. 775776 о Авторское свидетельство СССР № 588190, кло G01 N 21/27, 1976. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323133A (en) * | 2011-10-09 | 2012-01-18 | 武钢集团昆明钢铁股份有限公司 | Method for measuring total iron content in directly-reduced iron |
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