Chromatography  Hayrapetyan's Effect Written by Aram Hayrapetyan
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As peak height is related with carriergas rate, wide peaks eluted later will be much sharper. This allows a better identification of low concentrations (increase in analysis accuracy); Attainment of symmetrical peaks also in case of nonlinear adsorption isotherm, as rear of band is at a higher pressure than front; The substantial enrichment, increase in concentration of component in center of band is conditioned by compression of band both as a consequence of moving pressure gradient compared with initial sorption pressure, and as a consequence of presence of moving gradient of optimal linear speed accompanying band of components being analyzed from inlet to outlet of chromatographic column during while analysis cycle (increase in efficiency of separation of components); The pressure of gas in column can be changed almost instantaneously and equilibrium can be attained in a very short time. Pressure reregulation excludes necessity of long "periods of cooling" of column (express  analysis, economy of electricity), while temperature increase programming may either cause evaporation of stationary phase, which "flies out" of column, or destroy it chemically to various molecules, which also will soon come out by carriergas. The repetitive cycles of heating and cooling may cause compression of solid support particles during expansion, followed by destruction (crumbling) during compression, which leads to a progressive change of permeability. The maximum possible effectivity of chromatographic column  Hayrapetyan's Effect The maximum possible effectivity of chromatographic column  Hayrapetyan's E ff e c t All rest  XX century. P. S. C h r o m a b a r o g r a p h y A new step of effectivity, A first  hand new technology. Toward new century with a new technology.
ARAM HAYRAPETYAN 47/6 Vardanants Street, Vanadzor 377201, Republic of Armenia, Email: invent@freenet.am Website: HTTP://CHROMATOGRAPHY.HOTBOX.RU PUBLICATIONS AND ARTICLES: 57 published works, including 21 certificates for individual authorship from USSR and Russia, Germany, Czechoslovakia and Bulgaria. PERSONAL DATES: Born 17 May 1945, married, two children. Daughter born 1972, married. Son born 1977.
  Chromatography a Superiority Formula Written by Aram Hayrapetyan
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where  beginning of chromatographic column, and  end of chromatographic column. Let at moment pressure at inlet and outlet of chromatographic column be correspondingly Then at moments of time on corresponding sections of chromatographic column, pressure will be It may be noticed that as well as in this case а We build a matrix of pressures in following way: let each line in it correspond to pressures of column at points at a pressure at inlet and at outlet of column at a moment while each column corresponds to pressures at a point at moments of time Thus matrix has following form The first column of matrix corresponds to pressure at inlet of column, while last one to outlet. They are chosen such that in column zone where sample is found at a definite moment of time, there will always exist a constant pressure corresponding to an optimal flow rate. The first column corresponds to moment of sample introduction, and last one to elution of separated components from column. Each element of matrix corresponds to a definite flow rate at a definite moment of time. To each element of matrix there corresponds a definite flow rate and followingly its equation from multiple (3). The matrix elements corresponding to passage of sample with an optimal speed through corresponding points of column at definite moments of time are marked in yellow. For these it may be written The carriergas pressure is programmed in such a way that it constantly secures an optimal linear speed for an imaginary point  zone of sample which travels with carriergas from inlet to outlet of chromatographic column in time, keeping ∆ p constant at its ends during whole cycle of analysis. This arithmetical model (of Hayrapetyan  Aghababyan) of chromatographic analysis built on basis of equation of Van Deemter describes in detail mentioned technological process of analysis organization and corresponds to that equation from multiple (3) which provides optimal conditions of analysis and leads to attainment of maximum possible efficiency of column (Hayrapetyan's Effect). In other words pressure at inlet and outlet of chromatographic column is programmed such, that carriergas flow rate in column is optimal in each section at needed moments of time. Thus, separation of sample is characterized by equations from multiple (3) and they are all equivalent to equation (4) And thus maximum possible efficiency of chromatographic column is attained (Hayrapetyan's Effect). P. S. C H R O M A B A R O G R A P H Y  a new conveniences F o r m u l a : optimal velocity, managing ability, durability, and maximum possible effectivity of chromatographic column. A F O R M U L A OF YOUR SUPERIORITY.
ARAM HAYRAPETYAN 47/6 Vardanants Street, Vanadzor 377201, Republic of Armenia, Tel: (374) 512 0115 Email: invent@freenet.am Website: HTTP://CHROMATOGRAPHY.HOTBOX.RU PUBLICATIONS AND ARTICLES: 57 published works, including 21 certificates for individual authorship from USSR and Russia, Germany, Czechoslovakia and Bulgaria. PERSONAL DATES: Born 17 May 1945, married, two children. Daughter born 1972, married. Son born 1977.
