J. Janák

3.4k total citations
184 papers, 2.5k citations indexed

About

J. Janák is a scholar working on Spectroscopy, Biomedical Engineering and Organic Chemistry. According to data from OpenAlex, J. Janák has authored 184 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 125 papers in Spectroscopy, 57 papers in Biomedical Engineering and 48 papers in Organic Chemistry. Recurrent topics in J. Janák's work include Analytical Chemistry and Chromatography (119 papers), Chemical Thermodynamics and Molecular Structure (39 papers) and Advanced Chemical Sensor Technologies (36 papers). J. Janák is often cited by papers focused on Analytical Chemistry and Chromatography (119 papers), Chemical Thermodynamics and Molecular Structure (39 papers) and Advanced Chemical Sensor Technologies (36 papers). J. Janák collaborates with scholars based in Czechia, Slovakia and Netherlands. J. Janák's co-authors include Josef Novák, Petr Boček, Mirko Deml, L. Soják, M. Dressler, J. Krupčík, Petr Gebauer, J. Hrivňák, K. Tesařík and J.A. Rijks and has published in prestigious journals such as Nature, Analytical Chemistry and Annals of the New York Academy of Sciences.

In The Last Decade

J. Janák

181 papers receiving 2.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
J. Janák Czechia 23 1.6k 1.1k 488 418 253 184 2.5k
L. S. Ettre United States 28 2.0k 1.3× 1.4k 1.2× 475 1.0× 726 1.7× 345 1.4× 160 3.3k
K. Grob Switzerland 25 1.5k 1.0× 1.0k 0.9× 311 0.6× 464 1.1× 204 0.8× 48 2.4k
Donald J. Pietrzyk United States 29 1.4k 0.9× 915 0.8× 278 0.6× 724 1.7× 409 1.6× 96 2.9k
I. Džidić United States 26 2.1k 1.3× 615 0.5× 206 0.4× 711 1.7× 327 1.3× 37 3.1k
J.K. Haken Australia 25 1.7k 1.1× 871 0.8× 613 1.3× 417 1.0× 133 0.5× 185 2.5k
Walter A. Aue Canada 24 1.2k 0.7× 671 0.6× 329 0.7× 433 1.0× 112 0.4× 164 2.0k
C.L. De Ligny Netherlands 26 920 0.6× 535 0.5× 405 0.8× 377 0.9× 365 1.4× 172 2.3k
Gary S. Whiting United States 19 1.3k 0.8× 760 0.7× 632 1.3× 238 0.6× 341 1.3× 30 2.5k
Sidney. Siggia United States 28 737 0.5× 368 0.3× 490 1.0× 512 1.2× 213 0.8× 99 2.2k
G. Schomburg Germany 41 3.2k 2.0× 2.5k 2.2× 650 1.3× 866 2.1× 541 2.1× 150 4.7k

Countries citing papers authored by J. Janák

Since Specialization
Citations

This map shows the geographic impact of J. Janák's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Janák with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Janák more than expected).

Fields of papers citing papers by J. Janák

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. Janák. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Janák. The network helps show where J. Janák may publish in the future.

Co-authorship network of co-authors of J. Janák

This figure shows the co-authorship network connecting the top 25 collaborators of J. Janák. A scholar is included among the top collaborators of J. Janák based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J. Janák. J. Janák is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Vlčková, Hana, et al.. (2013). How to address the sample preparation of hydrophilic compounds: Determination of entecavir in plasma and plasma ultrafiltrate with novel extraction sorbents. Journal of Pharmaceutical and Biomedical Analysis. 88. 337–344. 16 indexed citations
2.
Janák, J., H.A.H. Billiet, Johannes Frank, K. Ch. A. M. Luyben, & Petr Hušek. (1994). Separation of selenium analogues of sulphur-containing amino acids by high-performance liquid chromatography and high-resolution gas chromatography. Journal of Chromatography A. 677(1). 192–196. 17 indexed citations
3.
Janák, J.. (1993). Process gas chromatography—fundamentals and applications. Journal of Chromatography A. 655(2). 359–359. 7 indexed citations
4.
Janák, J.. (1989). Analytical and Biomedical Application of Ion-Selective Field-Effect Transistors. TrAC Trends in Analytical Chemistry. 8(9). 352–352. 10 indexed citations
5.
Janák, J.. (1989). Gas and liquid chromatography in analytical chemistry. Journal of Chromatography A. 472. 342–343. 1 indexed citations
6.
Janák, J.. (1989). Unconventional use of adsorption for enrichment of impurities in gases. Pure and Applied Chemistry. 61(11). 2011–2014. 2 indexed citations
7.
Boček, Petr, et al.. (1979). High-speed isotachophoresis. Analytical aspects of the steady-state longitudinal temperature profiles. Collection of Czechoslovak Chemical Communications. 44(3). 841–853. 2 indexed citations
8.
Janák, J., et al.. (1978). On the integers $x_i$ for which $x_i\mid x_1\dots x_{i-1}x_i\dots x_n+1$ holds. Mathematica Slovaca. 28(3). 305–310. 3 indexed citations
9.
Deyl, Zdeněk, Karel Macek, & J. Janák. (1975). Liquid column chromatography : a survey of modern techniques and applications. Elsevier eBooks. 19 indexed citations
10.
Janák, J., et al.. (1973). Chromafol®—ein neues material für die chromatographie in flächenanordnung. Journal of Chromatography A. 78(1). 93–100.
11.
Soják, L., et al.. (1972). Determination of the boiling points of straight-chain C12- alkenes from their gas chromatographic retention indices. Journal of Chromatography A. 71(2). 243–249. 13 indexed citations
12.
Hrivňák, J., et al.. (1972). Capillary gas chromatography of free saturated C2C6 fatty acids. Journal of Chromatography A. 68(1). 55–58. 12 indexed citations
13.
Dressler, M. & J. Janák. (1969). Selective determination of volatile sulfur compounds with a thermionic detector. Collection of Czechoslovak Chemical Communications. 34(6). 1797–1801. 2 indexed citations
14.
Dressler, M. & J. Janák. (1969). Response of the alkali flame ionization detector to halogen compounds. Journal of Chromatography A. 44. 40–45. 9 indexed citations
15.
Janák, J., et al.. (1968). Analytische Deutung der Selen-Dehydrierung von Steroiden; Ein Beitrag zum Problem des Gehaltes an dielsschem Kohlenwasserstoff in den Dehydrierungsprodukten von Steroiden. Collection of Czechoslovak Chemical Communications. 33(1). 193–209. 2 indexed citations
16.
Novák, Josef, et al.. (1967). The use of the chromatographic equilibration procedure for air pollution studies. Journal of Chromatography A. 28(2). 285–292. 12 indexed citations
17.
Janák, J., et al.. (1966). Detector combining a flame ionization and a thermionic detection system into a single unit. Collection of Czechoslovak Chemical Communications. 31(10). 3925–3940. 7 indexed citations
18.
Janák, J., et al.. (1965). Identification of some acetals of the tetrahydrofurane series by gas chromatography with the aid of the Kováts indices. Collection of Czechoslovak Chemical Communications. 30(1). 265–276. 7 indexed citations
19.
Janák, J.. (1964). Multi-dimensional chromatography using different developing methods. Journal of Chromatography A. 16. 494–501. 6 indexed citations
20.
Krejčí, M. & J. Janák. (1959). Über die Anwendung von Zeolithen in der Gaschromatographie II. Bestimmung von Argon in Gegenwart von Sauerstoff und der übrigen permanenten Gase. Collection of Czechoslovak Chemical Communications. 24(12). 3887–3892. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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