Theory of optimization of the experimental conditions of preparative elution using the ideal model of liquid chromatography

Sadroddin. Golshan-Shirazi; Georges. Guiochon

doi:10.1021/ac00186a020

Analytical Solutions of the Ideal Model for Gradient Liquid Chromatography

Analytical Chemistry ◽

10.1021/ac061318y ◽

2006 ◽

Vol 78 (22) ◽

pp. 7828-7840 ◽

Cited By ~ 19

Author(s):

Weiqiang Hao ◽

Xiangmin Zhang ◽

Keyong Hou

Keyword(s):

Liquid Chromatography ◽

Analytical Solutions ◽

Ideal Model ◽

Gradient Liquid Chromatography ◽

The Ideal

Profiles of large-size system peaks and vacancy bands in liquid chromatography I. Analytical solution of the ideal model

Journal of Chromatography A ◽

10.1016/0021-9673(95)00983-3 ◽

1996 ◽

Vol 734 (1) ◽

pp. 63-74 ◽

Cited By ~ 15

Author(s):

Guoming Zhong ◽

Torgny Fornstedt ◽

Georges Guiochon

Keyword(s):

Liquid Chromatography ◽

Analytical Solution ◽

Ideal Model ◽

Large Size ◽

System Peaks ◽

The Ideal

Green Synthesis and Enhanced CO2 Capture Performance of Perfluorinated Cerium-Based Metal-Organic Frameworks with UiO-66 and MIL-140 Topology

10.26434/chemrxiv.6876749.v1 ◽

2018 ◽

Cited By ~ 1

Author(s):

Roberto D’Amato ◽

Anna Donnadio ◽

Mariolino Carta ◽

Claudio Sangregorio ◽

Riccardo Vivani ◽

...

Keyword(s):

Photoelectron Spectroscopy ◽

Metal Organic Frameworks ◽

Isosteric Heat ◽

Experimental Conditions ◽

Cerium Ammonium Nitrate ◽

Ideal Adsorbed Solution Theory ◽

Metal Organic ◽

Adsorbed Solution ◽

Better Than ◽

The Ideal

Reaction of cerium ammonium nitrate and tetrafluoroterephthalic acid in water afforded two new metal-organic frameworks with UiO-66 [F4_UiO-66(Ce)] and MIL-140 [F4_MIL-140A(Ce)] topologies. The two compounds can be obtained in the same experimental conditions, just by varying the amount of acetic acid used as crystallization modulator in the synthesis. Both F4_UiO-66(Ce) and F4_MIL-140A(Ce) feature pores with size < 8 Å, which classifies them as ultramicroporous. Combination of X-ray photoelectron spectroscopy and magnetic susceptibility measurements revealed that both compounds contain a small amount of Ce(III), which is preferentially accumulated near the surface of the crystallites. The CO2 sorption properties of F4_UiO-66(Ce) and F4_MIL-140A(Ce) were investigated, finding that they perform better than their Zr-based analogues. F4_MIL-140A(Ce) displays an unusual S-shaped isotherm with steep uptake increase at pressure < 0.2 bar at 298 K. This makes F4_MIL-140A(Ce) exceptionally selective for CO2 over N2: the calculated selectivity, according to the ideal adsorbed solution theory for a 0.15:0.85 mixture at 1 bar and 293 K, is higher than 1900, amongst the highest ever reported for metal-organic frameworks. The calculated isosteric heat of CO2 adsorption is in the range of 38-40 kJ mol-1, indicating a strong physisorptive character.

Happiness, Virtue, and Political Society

10.1093/oso/9780199580903.003.0009 ◽

2018 ◽

Author(s):

T. M. Rudavsky

Keyword(s):

Moral Philosophy ◽

Political Behavior ◽

Political Society ◽

Ideal Model ◽

The Road ◽

Doctrine Of The Mean ◽

The Mean ◽

The Ideal ◽

Divine Law

Chapter 9 is concerned with social and political behavior. Even in the context of moral philosophy, Jewish philosophers discuss issues within the wider context of a rational scientific perspective. This chapter begins with specific moral codes developed by Jewish thinkers, focusing in particular upon the works of Ibn Gabirol, Baḥya ibn Paquda, Maimonides, and Crescas. Can there be ethical dictates independent of the commandments? The rabbis already worried whether there existed a domain of “right behavior” that pre-dates, or exists independently of, divine commandment. Does Aristotle’s doctrine of the mean apply to divine law? Furthermore, can all humans achieve intellectual perfection? Is the road the same, and open, to all? And is there only one road to ultimate felicity, or are there many routes? The chapter ends with a discussion of whether human felicity can be achieved in this life, and whether the prophet best represents the ideal model for such achievement.

Using argumentation theory to identify the challenges of shared decision-making when the doctor and the patient have a difference of opinion

Journal of Public Health Research ◽

10.4081/jphr.2012.e26 ◽

2012 ◽

Vol 1 (2) ◽

pp. 26 ◽

Cited By ~ 6

Author(s):

Claudia A. Zanini ◽

Sara Rubinelli

Keyword(s):

Decision Making ◽

Dispute Resolution ◽

Shared Decision Making ◽

Communication Skills ◽

Critical Discussion ◽

Argumentation Theory ◽

Shared Decision ◽

Ideal Model ◽

Difference Of Opinion ◽

The Ideal

This paper aims to identify the challenges in the implementation of shared decision-making (SDM) when the doctor and the patient have a difference of opinion. It analyses the preconditions of the resolution of this difference of opinion by using an analytical and normative framework known in the field of argumentation theory as the ideal model of critical discussion. This analysis highlights the communication skills and attitudes that both doctors and patients must apply in a dispute resolution-oriented communication. Questions arise over the methods of empowerment of doctors and patients in these skills and attitudes as the preconditions of SDM. Overall, the paper highlights aspects in which research is needed to design appropriate programmes of training, education and support in order to equip doctors and patients with the means to successfully engage in shared decision-making.

Physiological Parameters to Identify Suitable Blood Donor Cows for Preparation of Platelet Rich Plasma

Animals ◽

10.3390/ani11082296 ◽

2021 ◽

Vol 11 (8) ◽

pp. 2296

Author(s):

Anna Lange-Consiglio ◽

Rosangela Garlappi ◽

Chiara Spelta ◽

Antonella Idda ◽

Stefano Comazzi ◽

...

Keyword(s):

Blood Donor ◽

Blood Donors ◽

Platelet Rich Plasma ◽

Bovine Mastitis ◽

Field Conditions ◽

Blood Collection ◽

Experimental Conditions ◽

Acute Mastitis ◽

Donor Cows ◽

The Ideal

Platelet rich plasma (PRP) has been shown to be beneficial in the treatment of bovine mastitis, with an action comparable to that of antibiotics. Autologous treatment is feasible in experimental conditions but is difficult to apply in field conditions, particularly in acute mastitis. The ideal scenario would be to have heterologous PRP stored on every farm so that it is readily available when needed. In this paper, we analysed data collected during bovine mastitis treatment with heterologous PRP produced by casual donor cows on several farms. We tried to identify parameters which might be useful to identify the most suitable cows to be used as blood donors, to obtain the highest yield of PRP. Variables considered for each animal were the age, the parity, the date of the last parturition, the season of blood collection, the site of blood collection (jugular or mammary vein) and the reproductive status e.g., pregnant or not pregnant. There were statistically significant differences for all the variables considered from the 135 blood cows, except for the blood collection season. The highest yield of PRP was associated with nonpregnancy blood collection within three months of parturition, parity 3 or 4, and blood collection from the mammary vein.

Validation of a Method Based on Triglycerides for the Detection of Low Percentages of Hazelnut Oil in Olive Oil by Column Liquid Chromatography

Journal of AOAC International ◽

10.1093/jaoac/90.5.1346 ◽

2007 ◽

Vol 90 (5) ◽

pp. 1346-1353 ◽

Cited By ~ 10

Author(s):

Diego L García-González ◽

María Viera-Macías ◽

Ramón Aparicio-Ruiz ◽

Maria T Morales ◽

Ramón Aparicio

Keyword(s):

Liquid Chromatography ◽

Olive Oil ◽

Carbon Number ◽

Hazelnut Oil ◽

Equivalent Carbon Number ◽

Experimental Conditions ◽

Mathematical Algorithm ◽

Relative Standard ◽

Triglyceride Content ◽

The Difference

Abstract The difference between theoretical and empirical triglyceride content is a powerful tool to detect the presence of any vegetable oil in olive oil. The current drawback of the method is the separation between equivalent carbon number ECN42 compounds, which affects the reliability of the method and, hence, its cutoff limit. The determination of the triglyceride profile by liquid chromatography using propionitrile as the mobile phase has recently been proposed to improve their quantification, together with a mathematical algorithm whose binary response determines the presence or absence of hazelnut oil. Twenty-one laboratories from 9 countries participated in an interlaboratory study to evaluate the performance characteristics of the whole analytical method. Participants analyzed 12 samples in duplicate, split into 3 intercomparison studies. Statistically significant differences due to the experimental conditions were found in some laboratories, which were detected as outliers by use of Cochran's and Grubbs' tests. The relative standard deviations (RSD) for repeatability and reproducibility were determined following the AOAC Guidelines for Collaborative Studies. The analytical properties of the method were determined by means of the sensitivity (0.86), selectivity (0.94), and reliability (72) for a cutoff limit of 8 (probability 94).

A VISUAL METAPHOR OF THE MEDIEVAL SOCIETY IN THE LATE 15th - EARLY 16th CENTURIES RUSSIAN “IN THEE REJOICETH” ICONS

Odysseus. Man in History ◽

10.32608/1607-6184-2021-29-1-99-122 ◽

2021 ◽

Vol 29 (1) ◽

pp. 99-122

Author(s):

Ludmila Sukina ◽

Keyword(s):

Capital City ◽

Visual Metaphor ◽

Ideal Model ◽

Human Race ◽

City Community ◽

Russian State ◽

Spiritual Authority ◽

The City ◽

The Ideal

The author examines the “In Thee rejoiceth” icons as visual sources that make it possible to reconstruct the ideal model of medieval society in the Moscow culture of the late 15th and early 16th centuries. This icon type, which includes the scenes of “Human race” collective praying to the Mother of God, is of Russian origin. Unlike other works of that time typologically close to it (“The Intercession”, “The Congregation of Our Lady”, “The Congregation of All Saints”, etc.), the “In Thee rejoiceth” icons demonstrate a historical connection to religious and socio-cultural facts of the Muscovy state. They clearly express the idea of Muscovy enjoying special patronage of the Mother of God, whose cult was actively developed in Moscow, the city that, as was believed at the Grand Dukes’ court, inherited the traditions and the spiritual authority of Constantinople. The depiction of the “Human race” in the “In Thee rejoiceth” icons can be viewed as a metaphorical image of the capital city community consisting of different groups of clergy and laity. This image corresponded to the ideas of the authorities and the population of the Russian state that existed under Ivan III and Vasili III.

The Photocatalytic Activity of Cement in Reducing Air Pollutants

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.f1253.0986s319 ◽

2019 ◽

Vol 8 (6S3) ◽

pp. 1422-1424

Keyword(s):

Climate Change ◽

Air Pollution ◽

Global Warming ◽

Photocatalytic Activity ◽

Ion Chromatography ◽

Air Pollutants ◽

Experimental Conditions ◽

Open Environment ◽

Physical And Chemical ◽

The Ideal

Air pollution is the major concern in the recent years because of causing imbalance to the ecosystem and also increases global warming and climate change. This paper, tries to investigate the applicability of photo catalytic cement in removing the pollutants under partially controlled and simpler experimental conditions such that it mimics the ideal state of its use, that is the natural open environment where it always is susceptible to complex physical and chemical interactions. It also gives an overview of the concentrations of the contaminants reduced not limiting to NOx residues alone, by employing Ion Chromatography instead of NOx analyzers.

Sports Training – Optimizing Mode of Improving the Motric Capacity in Preparation Military Students

Land Forces Academy Review ◽

10.1515/raft-2017-0005 ◽

2017 ◽

Vol 22 (1) ◽

pp. 30-34

Author(s):

Robert Stănciulescu

Keyword(s):

Exercise Capacity ◽

Weather Condition ◽

Human Potential ◽

Military Students ◽

Ideal Model ◽

High Quality ◽

The One ◽

High Level ◽

And Training ◽

The Ideal

Abstract Specialized studies show how a fighter should physically be, not just any fighter, but the one who possesses the qualities and features of the ideal model, i.e. those elements that define the near-perfect fighter. The demands of the modern battlefield impose a high quality human potential that provides a good basis for the selection and training of fighters. Resistance to physical, climate, season and weather condition demands, to the prolonged efforts fighting requires is one of the important conditions of success. The paper presents information with particular impact in optimizing exercise capacity for future officers of the land forces, emphasizing once again the idea that a high level of motric ability is an essential objective.