SU406158A1 - METHOD OF GAS CHROMATOGRAPHIC DETERMINATION OF SECTIONS OF IONIZATION OF COMPONENTS OF MIXTURES - Google Patents
METHOD OF GAS CHROMATOGRAPHIC DETERMINATION OF SECTIONS OF IONIZATION OF COMPONENTS OF MIXTURESInfo
- Publication number
- SU406158A1 SU406158A1 SU1776705A SU1776705A SU406158A1 SU 406158 A1 SU406158 A1 SU 406158A1 SU 1776705 A SU1776705 A SU 1776705A SU 1776705 A SU1776705 A SU 1776705A SU 406158 A1 SU406158 A1 SU 406158A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ionization
- mixtures
- components
- sections
- gas chromatographic
- Prior art date
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Description
II
Изобретение относитс к способам определени физико-химических параметров веществ путем газовой хроматографии.The invention relates to methods for determining the physicochemical parameters of substances by gas chromatography.
Известен способ газохроматографического определени сечений ионизации молекул анализируемых веществ, основанный на пропускании известных количеств этих веществ через хроматографическую колонку и детектирующее устройство, сигнал которого пропорционален концентрации и разности сечений ионизации молекул анализируемого вещества и газа-носител . При определении сечений ионизации анализируемых веществ измер ют фоновый ток и сравнивают его с разностью ионизационного тока, пропорционального концентрации анализируемого вещества в газе-носителе, соответствующей максимуму пика, и фонового тока , причем разность этих токов беретс с учетом измерений концентрации в максимуме пика.A known method for the gas chromatographic determination of ionization cross sections for analyte molecules is based on passing known quantities of these substances through a chromatographic column and a detecting device whose signal is proportional to the concentration and difference of ionization cross sections of the analyte and the carrier gas. In determining the ionization cross sections of the analytes, the background current is measured and compared to the difference in ionization current proportional to the concentration of the analyte in the carrier gas corresponding to the peak maximum and background current, the difference of these currents taking into account the concentration measurements at the peak maximum.
Недостатками известного способа вл ютс следующие:The disadvantages of this method are the following:
1. Необходимость определени навески и объема введенной в хроматографическую колонку пробы, в св зи с чем требуетс брать не . менее 1 мг вещества, используемого дл анализа, и вводить всю пробу .в колонку.1. The need to determine the sample and the volume of the sample introduced into the chromatographic column, in connection with which it is required not to take. less than 1 mg of the substance used for the analysis, and enter the entire sample.
2.Возможность определени сечений ионизации молекул только чистых индивидуальных соединений либо компонентов искусственных смесей известного количественного2. The possibility of determining the ionization cross sections of molecules of pure individual compounds or components of artificial mixtures of a known quantitative
состава при условии отсутстви в анализируемом веществе или смеси неопредел емых примесей.composition subject to the absence in the analyzed substance or mixture of indefinable impurities.
3.Возможность анализа только тех веществ , пики которых строго симметричны (что3. The ability to analyze only those substances whose peaks are strictly symmetric (which
редко бывает в хроматографической практике ), так как в противном случае резко возрастает погрещность определени сечени ионизации молекулы за счет погрещности при расчете концентрации анализируемого вещества в газе-носителе, соответствующей максимуму пика.rarely happens in chromatographic practice), since otherwise the accuracy of determining the ionization cross section of the molecule due to the error in calculating the concentration of the analyte in the carrier gas corresponding to the peak maximum increases sharply.
4.Трудность автоматизации анализа в св зи с необходимостью измерени высот пиков и других параметров, необходимых дл определени концентрации анализируемого вещества в газе-носителе, соответствующей максимуму пика.4. The difficulty of automating analysis due to the need to measure peak heights and other parameters necessary to determine the concentration of the analyte in the carrier gas corresponding to the peak maximum.
Целью изобретени вл етс увеличение точности определени сечений ионизации молекул , расщирение диапазона анализируемых веществ, определение сечений ионизации молекул компонентов смесей, исключение необходимости определени количества анализируемого вещества и уменьщение количестваThe aim of the invention is to increase the accuracy of determining the ionization cross sections of molecules, expanding the range of the analyzed substances, determining the ionization cross sections of the molecules of the components of mixtures, eliminating the need to determine the amount of the analyte and reducing the amount of
вещества, требуемого дл анализа.substances required for analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1776705A SU406158A1 (en) | 1972-04-19 | 1972-04-19 | METHOD OF GAS CHROMATOGRAPHIC DETERMINATION OF SECTIONS OF IONIZATION OF COMPONENTS OF MIXTURES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1776705A SU406158A1 (en) | 1972-04-19 | 1972-04-19 | METHOD OF GAS CHROMATOGRAPHIC DETERMINATION OF SECTIONS OF IONIZATION OF COMPONENTS OF MIXTURES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU406158A1 true SU406158A1 (en) | 1973-11-05 |
Family
ID=20511815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1776705A SU406158A1 (en) | 1972-04-19 | 1972-04-19 | METHOD OF GAS CHROMATOGRAPHIC DETERMINATION OF SECTIONS OF IONIZATION OF COMPONENTS OF MIXTURES |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU406158A1 (en) |
-
1972
- 1972-04-19 SU SU1776705A patent/SU406158A1/en active
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