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1

Comparison of Sensitivity of Autotrophic and Heterotrophic Microorganisms to the Pollution of Natural Water with Rare Earth Elements (Lanthanum and Cerium)

Lozhkina Roza A., Olkova Anna S., Koval Ekaterina V., Tomilina Irina I., Sysolyatina Maria A.

Journal of Ecological Engineering

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2022

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Vol. 23, nr 4

58--63

EN

The purpose of the work was to compare the sensitivity of autotrophic and heterotrophic organisms used in bioassay to lanthanum and cerium under the conditions of a model experiment with aqueous media. Using bioassay methods, the pre-lethal effects of La and Ce in heterotrophic Paramecium caudatum and Escherichia coli, as well as autotrophic Chlorella vulgaris and Nostoc linckia were determined. Model solutions of La2 (SO4)3∙8H2O and Ce2 (SO4)3∙8H2O were tested in the concentration range of 0.1–200 mg/l. As a result, it was shown that heterotrophic organisms are more sensitive to water pollution with La and Ce than autotrophic ones. According to the totality of experiments, cerium turned out to be more toxic than lanthanum. When planning the environmental studies of wastewater or reservoirs polluted with REE, it is recommended to focus on comparative sensitivity of bioassay methods, taking into account the test-functions used: bioassay for chemotaxis of P. caudatum > bioassay for changes in bioluminescence of E. coli (strain M-17) > bioassay for the content of chlorophyll а and intensity of lipid peroxidation in N. linckia > bioassay on the increase in the number of Cl. vulgaris.

2

Behavioral and Lethal Effects of La Salt and a Mixture of Cu and La Salt on Daphnia magna Straus

Olkova Anna Sergeewna, Sysolyatina Maria

Journal of Ecological Engineering

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2022

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Vol. 23, nr 6

245--252

EN

The study of joint effects of REE and HM is relevant, since they are often satellite deposits, their areas of application are similar, and an increase in concentrations of elements of these groups in the areas that are not places of their extraction and enrichment is proven. The purpose of this work was to find out the pre-lethal and lethal effects of La, Cu and their equimolar mixtures in tests for Daphnia magna Straus. Bioassays of artificially polluted natural waters, initially free of toxic elements, was carried out. In bioassays on the mortality of D. magna in the space of 96 hours it was found that acute toxicity of copper sulfate solutions is observed at the calculated concentration of Cu2+ 0.1 mg/L (0.0016 mmol/L), and the acute toxicity of lanthanum sulfate is when the dose of La3+ is equal to 50 mg/L (0.36 mmol/L). In the solutions comprising mixtures of Cu and La salts (1:1 calculated using metals), the concentrations of which are equimolar to the investigated solutions of copper sulfate, the mortality of D. magna begins in the solution containing 10 times less toxic elements. It was found that 25% of individuals died in the variant “0.00016 mmol/L”, the mortality of 100% of individuals was at the total metal concentration of 0.0008 mmol/L. The solutions containing La (0.072–0.72 mmol/L) and Cu (0.00016–0.0016 mmol/L) naturally inhibit the motor activity of D. magna by 1.3–5.3 times and 1.2–1.9 times in 1 hour and 1.7–2.8 and 1.4–2.2 times in 24 hours, respectively. The solutions containing mixtures of Cu and La salts inhibited the motor activity of D. magna in the same way as copper sulfate solutions with the Cu2+ concentrations equimolar “Cu2+ + La3+”. Therefore, when testing the solutions with the same molar concentrations of Cu2+ and the mixture of “Cu2+ + La3+” it was shown that La potentiates the pre-lethal effect of Cu to the level of individual effects of Cu. The additions of La salt to the solutions containing pre-lethal doses of Cu lead to lethal effects of such mixtures for D. magna.

3

Nadprzewodnictwo w półprzewodnikach

Sosnowski J.

Przegląd Techniczny : Gazeta Inżynierska

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2017

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nr 7-8

18--22

PL

W pracy omówiono odkrycia z zakresu występowania nadprzewodnictwa w półprzewodnikach. Materiały te łącząc specyficzne właściwości tych dwóch klas – nadprzewodników i półprzewodników – stwarzają nowe możliwości ich zastosowania, w tym przy konstrukcji przyrządów elektronicznych. Przedstawiono pierwsze, wcześniejsze rezultaty badań półprzewodników nadprzewodzących, w tym przeprowadzone przez autora na selenku lantanu oraz wyniki nowych badań prowadzących do odkrycia nadprzewodników żelazowych, które także oparte są na lantanie i selenie.

EN

In the paper are discussed discoveries from range of occurrence superconductivity in semiconductors. These materials connecting peculiar specificities in these two classes – superconductors and semiconductors bring new capabilities of their applications at construction of electronic instruments. In paper are presented first, earlier results of research of superconducting semiconductors, including carried by author of publication on lanthanum selenide and then results of new research leading to discovery of iron-superconductors, which are also based on lanthanum and selenide.

4

Cobalt-lanthanum catalyst precursors for ammonia synthesis: determination of calcination temperature and storage conditions

Zybert M., Tarka A., Mierzwa B., Raróg-Pilecka W.

Polish Journal of Chemical Technology

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2017

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Vol. 19, nr 2

61--66

EN

A thermal decomposition of a cobalt-lanthanum catalyst precursor containing a mixture of cobalt and lanthanum compounds obtained by co-precipitation were studied using thermal analysis coupled with mass spectrometry (TG-MS). Studies revealed that the calcination in air at 500°C is sufficient to transform the obtained cobalt precipitate into Co3 O4 , but it leads to only partial decomposition of lanthanum precipitate. In order to obtain Co/La catalyst precursor containing La2 O3 the calcination in air at the temperature about 800°C is required. However, it is unfavorable from the point of view of textural properties of the catalyst precursor. A strong effect of storage conditions on the phase composition of the studied cobalt-lanthanum catalyst precursor, caused by the formation of lanthanum hydroxide and lanthanum carbonates from La2 O3 when contacting with air, was observed.

5

Uptake of metals from single and multi-component systems by Spirulina platensis biomass

Zinicovscaia I., Safonov A., Tregubova V., Ilin V., Cepoi L., Chiriac T., Ludmila Rud L., Frontasyeva M. V.

Ecological Chemistry and Engineering. S

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2016

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Vol. 23, nr 3

401--412

EN

Spirulina platensis biomass is widely applied for different technological purposes. The process of lanthanum, chromium, uranium and vanadium accumulation and biosorption by Spirulina platensis biomass from single- and multi-component systems was studied. The influence of multi-component system on the spirulina biomass growth was less pronounced in comparison with the single-component ones. To trace the uptake of metals by spirulina biomass the neutron activation analysis was used. In the experiment on the accumulation the efficiency of studied metal uptake changes in the following order: La(V) > Cr(III) > U(VI) > V(V) (single-metal solutions) and Cr(III) > La(V) > V(V) > U(VI) (multi-metal system). The process of metals biosorption was studied during a two-hour experiment. The highest rate of metal adsorption for single-component systems was observed for lanthanum and chromium. While for the multi-component system the significant increase of vanadium and chromium content in biomass was observed. In biosorption experiments the rate of biosorption and the Kd value were calculated for each metal. Fourier transform infrared spectroscopy was used to identify functional groups responsible for metal binding. The results of the present work show that spirulina biomass can be implemented as a low-cost sorbent for metal removal from industrial wastewater.

6

Properties and activity of the cobalt catalysts for NH3 &enspsynthesis obtained by co-precipitation – the effect of lanthanum addition

Zybert M., Karasińska M., Truszkiewicz E., Mierzwa B., Raróg-Pilecka W.

Polish Journal of Chemical Technology

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2015

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Vol. 17, nr 1

138--143

EN

In modern research on catalysts for NH3&enspsynthesis a lot of attention is paid to cobalt. In this work the new catalytic systems based on cobalt are presented. Unsupported cobalt catalysts singly promoted (La or Ba) and doubly promoted (La and Ba) were prepared and tested in NH3&enspsynthesis reaction under commercial synthesis conditions. Characterization studies revealed that lanthanum plays a role of a structural promoter, which improves the surface of catalyst precursors and prevents from sintering during calcination. However, lanthanum has a negative effect on the reduction of cobalt oxide, but the addition of barium promoter (Co/La/Ba catalyst) diminishes the negative impact of La. The co-promotion of cobalt with lanthanum and barium results in the increasing of the active phase surface and improvement of its activity in NH3&enspsynthesis.

7

Lantan i cer w glebach Polski

Kwecko P.

Przegląd Geologiczny

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2012

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Vol. 60, nr 9

490–-495

EN

The paper present basic spatial analysis lanthanum and cerium distribution in Poland soils. Attempted to determine geochemical background and range and intensity of enrichment and anomalies La and Ce content in top (0–0,2 m) and bottom (0,5–2 m) soils. These data are presented in the form two color maps of polygonal with basic statistic information. The text part describes the main areas of enrichment and attempts to indicate the source of these values.

8

Wpływ ceru lub lantanu na aktywność niklowych katalizatorów metanizacji tlenków węgla

Gołębiowski A., Stołecki K., Michalska K., Narowski R., Borowiecki T.

Przemysł Chemiczny

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2011

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T. 90, nr 12

2145-2147

9

Derivative thermo analysis of the Al-Si cast alloy with addition of rare earths metals

Krupiński M., Labisz K., Dobrzański L. A., Rdzawski Z.

Archives of Foundry Engineering

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2010

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Vol. 10, iss. 1

79-82

EN

In this paper the dependence between chemical composition, structure and cooling rate of Al-Si aluminium cast alloy was investigated. For studying of the structure changes the thermo-analysis was carried out, using the UMSA (Universal Metallurgical Simulator and Analyzer) device. For structure investigation optical and electron scanning microscopy was used, phase and chemical composition of the Al cast alloy also using qualitative point-wise EDS microanalysis.

10

Self-Assembly in Lanthanum Complexes of Salicylaldimines Derived from Biogenic Diamines

Pospieszna-Markiewicz I., Radecka-Paryzek W.

Polish Journal of Chemistry

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2008

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Vol. 82, nr 6

1207-1212

EN

Lanthanum(III) chloride and nitrate appear to be effective template agents in the one-step synthesis of salicylaldimine complexes derived from salicylaldehyde and biogenic diamines putrescine or cadaverine. The potentially tetradentate N2O2 Schiff bases display a rare coordination pattern of salen-type complexes acting as neutral ligands us ing oxygens as do nor atoms with out in volving the nitrogen atoms in the coordination. The synthesis and characteriz tion of the new free salicylaldimine ligand derived from cadaverine was also carried out.

11

Heterobimetallic Zinc and Lanthanide Salicylaldimine Complexes Formed in Self-Assembly Process

Kaczmarek M. T., Radecka-Paryzek W.

Polish Journal of Chemistry

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2008

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Vol. 82, nr 6

1213-1218

EN

The new 3d-4f heterobimetallic salicylaldimine complexes of the formulas ZnLaL2(NO3)5×5H2O, ZnGdL2Cl5×6H2O and ZnGdL3(NO3)5×5H2O, where L is N,N'- bis(salicylidene)-1,3-phenylenediamine, were synthesized by the template-in duced Schiff base condensation reaction between salicylaldehyde and 1,3- phenylene diamine in the presence of appropriate metal ions acting as templates. The complexes were characterized by spectroscopic methods (IR, 1H NMR, ESI-MS) and elemental analysis.

12

Triangulation of the La-Mg-Zn system

Berche A., Record M.-C., Rogez J.

Archives of Metallurgy and Materials

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2008

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Vol. 53, iss. 4

1141-1148

EN

This work is a contribution to the study of the La-Mg-Zn phase diagram. Several alloys were prepared from pure constitutive elements by classical synthesis in tantalum crucibles. These alloys were characterized by X-ray diffraction and Electron Probe MicroAnalysis. The results of these characterization measurements allowed the authors to suggest a fuli triangulation of the La-Mg-Zn system : six ternary solid solutions and one ternary compound were evidenced.

PL

Celem tej pracy jest zebranie nowych danych niezbędnych do opracowania diagramu fazowego układu La-Mg-Zn. Dostępne dane literaturowe są nieliczne i częściowo sprzeczne. Przygotowano 26 stopów o różnym składzie poprzez stopienie czystych składników w tyglach tantalowych w atmosferze ochronnej argonu. Otrzymane stopy zbadane zostały za pomocą dwóch technik: dyfraktografii i mikrosondy elektronowej. Otrzymane rezultaty pozwoliły zaproponować pełną triangukację układu La-Mg-Zn: stwierdzono istnienie sześciu potrójnych roztworów stałych i jednego potrójnego związku międzymetalicznego.

13

Metal-Ion-Directed Synthesis of the New Macrocyclic and Acyclic Homo- and Heterodinuclear Schiff Base Complexes Derived from Putrescine

Radecka-Paryzek W., Kaczmarek M., Luks E., Pospieszna-Markiewicz I.

Polish Journal of Chemistry

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2005

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Vol. 79 / nr 10

1597-1604

EN

The template reaction of 2,6-diacetylpyridine with putrescine, a biogenic diamine, in the presence of lanthanum(III) and zinc(II) ions produces homo- and heteronuclear complexes of 22-membered macrocyclic ligand with an N6 set of donor atoms as a result of the [2+2] Schiff base cyclocondensation. Complexes containing Schiff base acyclic ligands terminated by two carbonyl groups or one carbonyl and one amine group as products of the partial metal-promoted condensation have been also isolated. They might be regarded as possible intermediates in the formation of the macrocyclic complexes. The complexes have been characterized by spectral data (IR, 1H NMR, ESI-MS) and elemental analyses.

14

Derivative spectrophotometry in resolution of overlapping spectra of La, Pr, Nd and Sm complexes with bromopyrogallol red (BPR)

Bobrowska-Grzesik E., Kozłowska K.

Polish Journal of Applied Chemistry

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2004

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Vol. 48, nr 1-2

45-49

EN

The absorption spectra of lanthanum, praseodymium, neodymium and samarium complexes with bromopyrogallol red have been studied by 1-3rd derivative spectrophotometry. Conditions have been found allowing separation of lanthanum spectra from other investigated ions. The following wavelengths were applied for measuring values of 1-st derivative signal: l=672, 666, or 664 respectively for lanthanum determination in the presence of praseodymium, neodymium or samarium ions and l=686nm for the determination of these ions in the mixtures with lanthanum. The Beer's law is obeyed in the range 0.2-3 mg Ln/ml. Detection limit is 0.05 mg/ml for La. The procedure allows determination of La in two compound mixtures of selected rare earths with satisfactory results.

PL

Badano możliwość rozdzielenia widm absorpcyjnych kompleksów lantanu, prazeodymu, neodymu i samaru z czerwienią bromopirogllolową za pomocą spektrofotometrii pochodnej 1 - 3 rzędu. Znaleziono warunki, w których możliwe było rozdzielenie widm kompleksów lantanu od pozostałych badanych jonów. Następujące długości fali wykorzystano dla pomiaru wartości sygnału 1-ej pochodnej widma: l = 672, 666 lub 664nm dla oznaczania lantanu w obecności prazeodymu, neodymu lub samaru oraz l=686nm dla oznaczania tych jonów w mieszaninie z lantanem. Prawo Beera spełnione jest w zakresie 0.2-3mgLn/ml, limit detekcji dla La wynosi 0.05 mg/ml. Procedura pozwala na oznaczanie mikrogramowych ilości lantanu w dwuskładnikowych mieszaninach wybranych pierwiastków ziem rzadkich.

15

Flotation spectrophotometric determination of La(III) as a ternary ion associate with alizarin and rhodamine B

Chamsaz M., Arbab-Zavar M. H., Hosseini M. H.

Chemia Analityczna

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2004

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Vol. 49, No. 2

241-249

EN

One determined lanthanum(III) utilising its reaction with alizarin and Rhodamine B in weakly alkaline medium. Flotation of the formed ternary ion associated complex was carried out with n-hexane from the solution of 0.01 mol L-1 ionic strength. After that the sample was dissolved in methanol and subjected to the subsequent spectrophotometric determinations. The Beerís law was obeyed in the range of 10-80 žg L-1 La(III) with correlation coefficient of 0.9982. Molar absorptivity was found to be 1.74 × 105 L mol-1 cm-1 at 544 nm indicating good sensitivity of the procedure. Detection limit (DL) was 3 žg L-1 and RSD (n = 5) for 20 mg L-1 of La(III) was 3.1% with a recovery of 94.6-103.4%. The method allows one to detect interfering cations on the basis of the respective changes in the shape of the spectrum. None of the alkaline cations interfered during the determination and interferences from many other metal ions were eliminated on cation-exchange resin before the flotation step. In order to evaluate the reliability of the method, a synthetic mineral water was analysed for La(III) content using the proposed and the standard arsenazo III methods. Both of them provided comparable recoveries.

PL

Lantan(III) oznaczano na podstawie reakcji z alizaryną i rodaminą B w słabo kwaśnym środowisku. Flotację potrójnego kompleksu ion owo-asocjacyjnego prowadzono z roztworu o sile jonowej 0,01 mo! L1 za pomocą rc-heksanu, z następczym rozpuszczaniem w metanolu do oznaczenia spektrofotometrycznego. Prawo Beera jest zachowane w zakresie 10-80 fig L(1) La(III), ze współczynnikiem korelacji 0,9982. Molowy współczynnik absorbcji wynosi 1,74 x10(5) L mol(-1) cm(-1) przy długości fali 544 nrn. Granica wykrywalności wynosi 3 ugL(-1), względne odchylenie standardowe (n = 5) przy zawartości 20 ug L(-1) La(III) wynosi 3,1%, natomiast odzysk był w granicach 94,6-103,4%. Ważną cechą postępowania jest możliwość wykrywania interferujących kationów na podstawie zmian widmowych. Metale alkaliczne nie przeszkadzają, a szereg innych metali można usunąć stosując przed etapem flotacji, wymieniacz kationowy Dowex 50W-X8. Poprawność metody sprawdzono analizując syntetyczną wodę mineralną i porównując wynik oznaczenia opracowaną metodą i metodą z użyciem arsenazo III.

16

Solvent extraction of inorganic and organic cations by octakis-O-diphenoxyphosphoryl-tetramethylcalix[4]resorcinarene

Taraszewska J., Koźbiał M.

Chemia Analityczna

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2002

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Vol. 47, No. 3

409-418

EN

Extraction of alkali metal, alkaline-earth metal Mg(II), Ca(II) cations and ammonium picra-tes as well as of Eu(IIl) and La(IlI) nitrates by complexation with octakis-O-diphenoxyphos-phoryl-tetramethylcalix[4] resorcinarene was studied by a liquid-liquid extraction from aqueous phase into chloroform. Extraction percentages (E%), stoichiometry and overall extraction constants (Kex) were determined. E% increased in the order lanthanum, europium >alka-line earth cations >ammonium cations>alkali cations. The stoichiometry of the complexes was 1:1. Kex increased with the increase of cation charge.

PL

Zbadano ekstrakcję z fazy wodnej pikrynianów metali alkalicznych, ziem alkalicznych Mg(II), Ca(II) i alkiloammoniowych oraz azotanów Eu(III) i La(lII) w wyniku komplekso-wania roztworem oktakis- difenoksyfosforylo-tetrametylokaliks[4]rezorcynarenu w chloroformie. Wyznaczono procenty ekstrakcj i (E%), stechiometrie, i stale ekstrakcj i (Kex). E% wzrastał w kolejności, lantan, europ >kationy metali ziem alkalicznych >kationy alkiloamo-niowe >kationy metali alkalicznych. Stechiometria kompleksów była1: 1. Kex wzrastała ze wzrostem ładunku kationu

17

Metal-Ion-Directed Synthesis of Homo-and Heteronuclear Dimetallic Schiff Base Podates

Radecka Paryzek W., Kaczmarek M. T., Luks E.

Polish Journal of Chemistry

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2001

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Vol. 75, nr 1

35-42

EN

Homodinuclear complexes of lanthanum(III), zinc(II), cadmium(II) and mercury(II) ions and heterodinuclear complexes of lanthanum(II) and zinc(II) ions containing Schiff base open-chain ligands terminated by two carbonyl groups or one amine and one carbonyl group were prepared as a result of the partial Schiff base condensation reaction between 2,6-diacetylpyridine and 4-methyl-1,2-phenylenediamine or 2,6-diaminopyridine in the presence of the appropriate ions acting as templates. The complexes were characterized by spectroscopic methods (IR, 1H NMR, FAB-MS) and elemental analysis.

18

Badanie aktywności chemicznej materiałów elektrodowych zawierających chromit lantanu.

Róg G., Kozłowska-Róg A., Bućko M.

Szkło i Ceramika

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1999

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R. 50, nr 4

27-31

PL

W oparciu o obliczone wartości zmian entalpii reakcji zachodzących między chromitami lantanowo-wapniowymi i dwutlenkiem cyrkonu stabilizowanym wapniem oraz reakcji chromitów lantanowo-wapniowych z tlenkiem węgla i wodorem, scharakteryzowano aktywność chemiczną otrzymanych materiałów elektrodowych La1-xCaxCrO3 (x większe lub równe od zera i mniejsze lub równe 0,4) względem innych materiałów powszechnie stosowanych w urządzeniach elektrochemicznych. Standardowe entalpie swobodne tworzenia dla produktów mogących powstawać na skutek przebiegu wymienionych reakcji wyznaczono metodą pomiaru siły elektromotorycznej (SEM) stałych ogniw galwanicznych. Stwierdzono, że w wyniku reakcji badanych materiałów z elektrolitem stałym, którym jest stabilizowany wapniem ZrO2, mogą tworzyć się cyrkoniany wapnia i lantanu, chromit wapnia oraz roztwory stałe tlenków chromu (III) i lantanu (III) w dwutlenku cyrkonu. Chromity lantanowo-wapniowe są natomiast odporne na redukujące działanie tlenku węgla i wodoru.

19

Lantan jako modyfikator siluminów.

Łatkowski A., Bronicki M., Gryzecki M.

Rudy i Metale Nieżelazne

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1999

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R. 44, nr 7

339-343

PL

Opierając się na analizie zmian mikrostruktury określono optymalne ilości lantanu zapewniając efekt modyfikacji w stopach AK7, AK9, AK11, AK52 i AK104. Przeprowadzono badania wpływu ilości lantanu, jako modyfikatora, na udarność stopów.

EN

On the base of microstructure analysis the optimum of lanthanum amount (for good modification) for AK7, AK9, AK11, AK52, AK104 alloys was determined. Influence of lanthanum amount (as the modifier) on the impact strength of alloys was established.