SU1627980A1 - Method for graduation of chromatographer - Google Patents
Method for graduation of chromatographer Download PDFInfo
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- SU1627980A1 SU1627980A1 SU884449063A SU4449063A SU1627980A1 SU 1627980 A1 SU1627980 A1 SU 1627980A1 SU 884449063 A SU884449063 A SU 884449063A SU 4449063 A SU4449063 A SU 4449063A SU 1627980 A1 SU1627980 A1 SU 1627980A1
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Abstract
Изобретение относитс к хроматогра- фическому анализу микропримесей и предназначено дл градуировки хроматографов. Цель изобретени - расширение области применени способа градуировки дл случаев хроматографического анализа микропримесей определ емого компонента при использовании газа-носител , содержащего известную концентрацию определ емого компонента Согласно способу осуществл ют хроматографирование одной и той же смеси в рабочем и градуировочном газах- носител х, содержащих различные концентрации определ емого компонента, получают значение высот пиков определ емого компонента в смеси, вычисл ют высоту рабочего пика по выражению, приведенному в формуле изобретени , и стро т градуи- ровочный график. 1 ил . 1 табл. ЈThe invention relates to the chromatographic analysis of microimpurities and is intended for the calibration of chromatographs. The purpose of the invention is to expand the scope of the method of calibration for cases of chromatographic analysis of trace components of a detectable component using a carrier gas containing a known concentration of a detectable component. The method performs chromatography of the same mixture in working and calibration gases containing different concentrations. detectable component, get the value of the peak heights of the detectable component in the mixture, calculate the height of the working peak by the expression, given in the claims, and build a calibration curve. 1 il. 1 tab. J
Description
Изобретение относитс к газовой хроматографии , а именно к газохроматическому анализу микропримесей, и предназначено дл градуировки хроматографов с газом-носителем , в составе которого присутствует определ емый компонент.The invention relates to gas chromatography, namely, to gas chromatographic analysis of microimpurities, and is intended for the calibration of chromatographs with a carrier gas, which contains a detectable component.
Цель изобретени - расширение области применени способа градуировки дл случаев хроматографического определени микропримесей определ емого компонента при использовании газа-носител , содержащего известную концентрацию определ емого компонента.The purpose of the invention is to expand the scope of the method of calibration for the cases of chromatographic determination of microimpurities of a detectable component using a carrier gas containing a known concentration of the detectable component.
На чертеже представлен градуировоч- ный график хроматографа.The drawing shows the calibration curve of the chromatograph.
Сущность способа заключаетс в том, что хроматографирование одной и той же смеси осуществл ют при различных концентраци х определ емого компонента в газе- носителе рабочей и градуировочной,отличной от рабочей, получают значение высот пиков определ емого компонента в смеси, вычисл ют высоту рабочего ложного пика по формулеThe essence of the method is that the chromatography of the same mixture is carried out at different concentrations of the component to be determined in the working and graduating gas, different from the working gas, the peak heights of the component being determined in the mixture are calculated, the height of the working false peak according to the formula
hxr пх h° hxr nh h °
где hxr и hx - высоты пиков определ емого компонента в смеси, содержащей концентрацию х определ емого компонента, при градуировочной и рабочей концентрации в газе-носителе;where hxr and hx are the heights of the peaks of the component being determined in a mixture containing the concentration x of the component being determined, with the calibration and working concentration in the carrier gas;
h0 - высота рабочего ложного пика;h0 is the height of the working false peak;
m - посто нна , равна отношению градуировочной концентрации к рабочей, и стро т градуировочный график известным способом от точки оси ординат, равной Ь0m is constant, equal to the ratio of the calibration concentration to the working one, and a calibration graph is drawn in a known manner from the point of the ordinate axis equal to L0
Пример. Градуировке подвергалс промышленный хроматограф Нефтехим - СКЭП, предназначенный дл анализа микропримесей влаги.Example. The industrial chromatograph Neftekhim - SKEP was designed for the analysis of trace moisture.
Услови анализа: колонка длиной А м, внутренним диак.атром 4 мм, сорбент - пи- лисорб 1; газ-носитель - голий с рабочей влажностью 80 ррт (контролируетс гигрометром Байкал - 3); температура разделени 150°С; детектор по теплопроводности; ток детектора 175°С, объем вводимой в ко- пробы 60 мкл; расход газа-носител 50 см . Анализируемый продукт - изомрен- изопентанова шихта.Conditions for analysis: column A m in length, internal diakatrom 4 mm, sorbent - pl ayl sorbent 1; carrier gas — naked with a working humidity of 80 ppm (controlled by a Baikal-3 hygrometer); separation temperature 150 ° C; thermal conductivity detector; the detector current is 175 ° C; the volume of samples injected into the samples is 60 μl; carrier gas flow 50 cm. The product to be analyzed is isomerene-isopentane mixture.
В таблице представлены результаты градуировки хром, ографа. Дл получени пробы с содержанием влаги, условно равной нулю, брали продукт их технологического потока с вл&жнос ью 0,0001-0,005 вес.% и сушили его 2 сут молекул рными ситами, предварительно прошедшими обработку ва- куумированием с одновременным прокаливанием .The table presents the results of the chromium ograph graduation. To obtain a sample with a conditional moisture content equal to zero, they took the product of their process stream with an impurity of 0.0001-0.005 wt.% And dried it for 2 days with molecular sieves that had previously undergone vacuum treatment with simultaneous calcination.
Градуировочный график хроматографа, выполненный по результатам таблицы, представлен на чертеже.The calibration graph of the chromatograph, made according to the results of the table, is shown in the drawing.
Техническим преимуществом способа вл етс расширение области применени дл случаев хроматографического определени микропримесей определ емого компонента при газе-носителе, содержащем известную концентрацию определ емого компонента.The technical advantage of the method is the expansion of the field of application for the cases of the chromatographic determination of microimpurities of a detectable component with a carrier gas containing a known concentration of the detectable component.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884449063A SU1627980A1 (en) | 1988-05-17 | 1988-05-17 | Method for graduation of chromatographer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884449063A SU1627980A1 (en) | 1988-05-17 | 1988-05-17 | Method for graduation of chromatographer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1627980A1 true SU1627980A1 (en) | 1991-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884449063A SU1627980A1 (en) | 1988-05-17 | 1988-05-17 | Method for graduation of chromatographer |
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| Country | Link |
|---|---|
| SU (1) | SU1627980A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2501011C2 (en) * | 2012-01-10 | 2013-12-10 | Общество с ограниченной ответственностью "Центр дисбиозов" | Calibration method of gas chromatography-mass spectrometry (gc-ms) system equipped with special software for determination of markers of microorganisms in tested sample of material of biological origin |
-
1988
- 1988-05-17 SU SU884449063A patent/SU1627980A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Коган Л.А. Количественна газова хроматографи . М.: Хими , 1975. с. 117 Стол ров Б.В., Савинов И.М.,Витен- берг А.Г. Руководство к практическим работам по газовой хроматографии. Л.: Хими , 1978, с. 205. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2501011C2 (en) * | 2012-01-10 | 2013-12-10 | Общество с ограниченной ответственностью "Центр дисбиозов" | Calibration method of gas chromatography-mass spectrometry (gc-ms) system equipped with special software for determination of markers of microorganisms in tested sample of material of biological origin |
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