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Petya Vassileva Racheva

Observed names: P. Racheva, P. V. Racheva, Petya Racheva, Petya V Racheva, Petya V. Racheva, Petya Vasileva Racheva, Racheva Petya
ORCID: 0000-0003-3941-2072
Observed ORCID: 0000-0003-3941-2072
OpenAlex ID: A5001617288
Centrifuge-Less Mixed Micelle-Mediated Cloud Point Extraction-Spectrophotometric Determination of Vanadium Using 4-Nitrocatechol and Cetylpyridinium Chloride
2025 · Andrea Gajdošová, Petya Racheva, et al. · International Journal of Molecular Sciences · 235
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A centrifuge-less cloud point extraction-spectrophotometric determination of copper(II) using 6-hexyl-4-(2-thiazolylazo)resorcinol
2021 · Petya V. Racheva, Nikolina P. Milcheva, et al. · Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy · 46
An environmentally friendly cloud point extraction–spectrophotometric determination of trace vanadium using a novel reagent
2021 · Nikolina P. Milcheva, Fatma Genç, et al. · Journal of Molecular Liquids · 26
Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Pyridylazo)resorcinol, and Nitron
2013 · Petya Vassileva Racheva, Kiril Blazhev Gavazov, et al. · Journal of Materials · 19
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Use of a Hydrophobic Azo Dye for the Centrifuge-Less Cloud Point Extraction–Spectrophotometric Determination of Cobalt
2022 · Kiril Blazhev Gavazov, Petya V. Racheva, et al. · Molecules · 18
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Extractive Spectrophotometric Determination and Theoretical Investigations of Two New Vanadium(V) Complexes
2023 · Kiril B. Gavazov, Petya V. Racheva, et al. · Molecules · 13
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Liquid-liquid extraction of ion-association complexes of cobalt(II)-4-(2-pyridylazo)resorcinol with ditetrazolium salts
2014 · Vidka Divarova, Kirila Stojnova, et al. · Journal of the Serbian Chemical Society · 13
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Spectrophotometric Determination of Cobalt(ii) in a Liquid-liquid Extraction System Containing 4-(2-thiazolylazo) Resorcinol and 2,3,5-triphenyl-2h-tetrazolium Chloride
2013 · Vidka Divarova, Petya Racheva, et al. · 13
Extraction equilibria and spectrophotometric determination of vanadium(V) with 4-nitrocatechol and the ion-pair reagent thiazolyl blue tetrazolium
2010 · P. V. Racheva, K. B. Gavazov, et al. · Journal of Analytical Chemistry · 12
Complex Formation in a Liquid-Liquid Extraction System Containing Co(II), 4-(2-Thiazolylazo)resorcinol and Monotetrazolium Salt
2016 · Vidka Divarova, Kirila Stojnova, et al. · Acta chimica slovenica · 10
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Mono- and Binuclear Complexes in a Centrifuge-Less Cloud-Point Extraction System for the Spectrophotometric Determination of Zinc(II)
2024 · Kiril B. Gavazov, Petya V. Racheva, et al. · Molecules · 9
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Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron
2015 · Petya Vassileva Racheva, Kirila Trifonova Stojnova, et al. · Croatica Chemica Acta · 8
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An Ionic Liquid-Assisted Mixed Micelle-Mediated Centrifuge-Less Cloud Point Extraction Spectrophotometric Method for the Determination of Molybdenum(VI)
2025 · Vidka Divarova, Andrea Gajdošová, et al. · International Journal of Molecular Sciences · 7
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Extraction-Spectrophotometric and Theoretical Studies on a Ternary Complex Obtained from Vanadium(V) and 4-Nitrocatechol
2021 · A. D. Saravanska, P. V. Racheva, et al. · Russian Journal of Inorganic Chemistry · 7
Some Ternary Phenylmethoxybis(tetrazolium) Complexes of Vanadium(IV,V) and Their Constants of Association
2012 · Kiril Blazhev Gavazov, Petya Vasileva Racheva, et al. · Croatica Chemica Acta · 7
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A Semi-Micro Extraction Spectrophotometric Determination of Iron Using 4-Nitrocatechol and Xylometazoline Hydrochloride
2025 · Petya V. Racheva, Antoaneta D. Saravanska, et al. · Molecules · 6
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Determination of Cobalt in the Form of an Ion Associate in Vitamin B12
2018 · V. Divarova, K. Stojnova, et al. · Russian Journal of Inorganic Chemistry · 6
Extraction-Spectrophotometric Method for Determination of Gallium(III) in the Form of Ion Associate with a Monotetrazolium Salt
2015 · K. T. Stojnova, V. V. Divarov, et al. · Journal of Applied Spectroscopy · 6
Ionic Liquid-Based Centrifuge-Less Cloud Point Extraction of a Copper(II)–4-Nitrocatechol Complex and Its Analytical Application
2025 · Denitsa Kiradzhiyska, Nikolina Milcheva, et al. · Molecules · 5
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Spectrophotometric Study of the Complex Formation of Anionic Chelates of Cobalt(II) with Monotetrazolium Cations
2017 · V. V. Divarova, K. T. Stojnova, et al. · Journal of Applied Spectroscopy · 5
Study on the Complex Equilibria of Molybdenum(VI) with 3,5-Dinitrocatechol and Ditetrazolium Salt
2016 · Kirila Stojnova, Petya Racheva, et al. · Acta chimica slovenica · 5
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Ternary ion-association complexes of cobalt with 4-(2-pyridylazo)resorcinol and tetrazolium salts.
2014 · Vidka V Divarova, Vanya D Lekova, et al. · PubMed · 5
Ternary complexes of vanadium(IV) with 4-(2-thiazolylazo)resorcinol and tetrazolium chlorides
2011 · Kiril B. Gavazov, Petya Racheva · 5
Extraction-Chromogenic System for Cobalt Based on 5-Methyl-4-(2-thiazolylazo) Resorcinol and Benzalkonium Chloride
2021 · Danail G. Georgiev Hristov, Petya Vassileva Racheva, et al. · Acta chimica slovenica · 4
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Extraction-Chromogenic Systems for Gallium(III) Based on Azo Dyes and Xylometazoline Hydrochloride
2020 · P. V. Racheva, D. G. Hristov, et al. · Russian Journal of General Chemistry · 4
Works count: 40
Citation count: 525
H-index: 10
I10-index: 10
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