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Zeiner, M., Pirkl, R. & Juranovic Cindric, I. (2020). Field-Tests versus Laboratory Methods for Determining Metal Pollutants in Soil Extracts. Soil & sediment contamination, 29(1), 53-68
Open this publication in new window or tab >>Field-Tests versus Laboratory Methods for Determining Metal Pollutants in Soil Extracts
2020 (English)In: Soil & sediment contamination, ISSN 1532-0383, E-ISSN 1549-7887, Vol. 29, no 1, p. 53-68Article in journal (Refereed) Published
Abstract [en]

Soil is one of the vehicles by which metals enter plants and groundwater. Compared to organic pollutants, metals do not biodegrade and are usually not mobile. In order to estimate the potential impact on groundwater, the amount of extractable metals from soil are thus of concern. Soil matrices represent quite a complex matrix; thus, the appropriate choice of sample preparation and analytical method is of great importance and challenging to ensure reliable and fast data while keeping labor and time need as low as possible. Soil extracts using acetic acid were analyzed, on the one hand, using classical analytical methods such as titrimetry (complexometry) and spectrophotometry, and on the other hand, by instrumental methods, including inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS) and graphite furnace atomic absorption spectrometry (GF-AAS). The classical methods are characterized by higher limits of detection (LODs), nevertheless their application as screening method on-site is promising. Applying specific reagents, precise measurements can be obtained by photometry with LODs about 0.1 mg/L. Titrimetric methods can be used for specific single element determination and for determining the sum of certain metals at contaminated sites due to LODs around 60 mg/L.

Place, publisher, year, edition, pages
Taylor & Francis, 2020
Keywords
Field tests, metal analysis, soil extract, spectrometry, titrimetry
National Category
Environmental Sciences
Identifiers
urn:nbn:se:oru:diva-77219 (URN)10.1080/15320383.2019.1670136 (DOI)000487994500001 ()
Note

Funding Agency:

Osterreichischer Austauschdienst  HR-23-2012

Available from: 2019-10-14 Created: 2019-10-14 Last updated: 2020-02-17Bibliographically approved
Zeiner, M. & Juranović Cindrić, I. (2019). Accumulation of major and trace elements in pine needles (Pinus nigra) in the Viennese Conurbation. In: Book of Abstracts: . Paper presented at 18th Austrian Chemistry Days, Linz, Austria, September 24-27, 2019.
Open this publication in new window or tab >>Accumulation of major and trace elements in pine needles (Pinus nigra) in the Viennese Conurbation
2019 (English)In: Book of Abstracts, 2019Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Due to increasing heavy metal pollution in the environment as well as to the fact that pine needles are considered as good bio-monitors for air pollutants, their accumulation in pine needles in Vienna (Austria) was investigated. P. nigra J. F. Arnold, also called Austrian pine, is widespread in the city, thus allowing the study of different parameters influencing metal accumulation. The sampling sites were chosen based on traffic volume (low, medium, high). Fresh needles were collected alongside one-year-old needles once per week from May to August 2015, to test for changes in space and time.

Washed and dried samples underwent acidic microwave assisted digestion prior to quantitative determination by spectrometric methods. The investigation was focused on 22 elements, namely Ag, Al, As, B, Ba, Be, Cd, Co, Cr, Cu, Fe, K, Li, Mn, Mo, Ni, Pb, Se, Sr, U, V, and Zn.

Older needles mainly contained higher contents of elements, especially of Ag, B, Ba, Co, Cr, Fe, K, Li, Pb, Se, Sr, U, and V, whose values even differed statistically significantly.

Correlating needle elemental contents with sampling site, i.e. traffic volume, only negligible influence by this parameter was found. These findings show that not only the local traffic situation determines the metal impact, but also soil elemental levels and translocation processes and/or not traffic related sources even in remote places have to be taken into account. Furthermore, no general trend of metal accumulation from spring to summer was registered.

National Category
Chemical Sciences
Research subject
Environmental Chemistry; Analytical Chemistry
Identifiers
urn:nbn:se:oru:diva-77005 (URN)978-3-900554-78-1 (ISBN)
Conference
18th Austrian Chemistry Days, Linz, Austria, September 24-27, 2019
Available from: 2019-10-03 Created: 2019-10-03 Last updated: 2019-10-07Bibliographically approved
Zeiner, M., Kuhar, A. & Juranović Cindrić, I. (2019). Geographic Differences in Element Accumulation in Needles of Aleppo Pines (Pinus halepensis Mill.) Grown in Mediterranean Region. Molecules, 24(10), Article ID E1877.
Open this publication in new window or tab >>Geographic Differences in Element Accumulation in Needles of Aleppo Pines (Pinus halepensis Mill.) Grown in Mediterranean Region
2019 (English)In: Molecules, ISSN 1420-3049, E-ISSN 1420-3049, Vol. 24, no 10, article id E1877Article in journal (Refereed) Published
Abstract [en]

Miller is a pine species native to the Mediterranean region, which has been used for restoration activities in arid and semiarid areas leading to vast spatial expansion. Needles from pine trees collected in the southeastern to northwestern extension of Croatia's coastal area at twelve sampling sites were analysed for twenty-one metals and metalloids. Statistical evaluation of the obtained data revealed significant differences for Al, As, B, Ba, Ca, Cr, Fe, K, Mg, Mn, Na, Se, and Sr between the different regions. Needles from trees growing on islands did not show elevated levels of Mg and/or Na as a result of the sea spray influence. The differences in metal accumulation are supposed to be linked to the environmental conditions at the respective sampling site, since the species was the same everywhere. By comparing the elemental contents of the soil those of with needles, it can be clearly seen, that the root as well as the foliar uptake contribute to the final amount.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
Aleppo pine, ICP-AES, ICP-MS, alepski bor, element content, geographical distribution, pine needles
National Category
Botany Biochemistry and Molecular Biology
Identifiers
urn:nbn:se:oru:diva-74316 (URN)10.3390/molecules24101877 (DOI)000470996600035 ()31096695 (PubMedID)2-s2.0-85066083175 (Scopus ID)
Available from: 2019-05-20 Created: 2019-05-20 Last updated: 2019-11-13Bibliographically approved
Franjković, K., Nemet, I., Juranović Cindrić, I., Zeiner, M. & Salopek Sondi, B. (2019). Influence of salinity on biometal content in collard greens. In: : . Paper presented at 20th Euroanalysis Conference, Istanbul, Turkey, September 1-5, 2019.
Open this publication in new window or tab >>Influence of salinity on biometal content in collard greens
Show others...
2019 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Collard greens are loose-leafed cultivars of Brassica oleracea a common vegetable. The aim of the present study consisted on the one hand in the determination of nutrients (major, minor and trace elements) as well as potentially toxic elements in this plant and on the other hand in evaluating the effects of certain stress (elevated salinity) on the uptake and accumulation of the before-determined elements. This stress factor has severe effects on crop productivity especially in countries in the Mediterranean area. Plants’ growth is determined by the photosynthetic activity, which is strongly influenced by salinity stress. The resultant effects are different for various species or cultivars, duration of the stress and applied salt concentration.

Roots and leaves of normally grown plants and of plants exposed to higher levels of sodium chloride were analyzed in the investigation. More than twenty metals and metalloids were quantified using ICP-OES (inductively coupled plasma – optical emission after acidic microwave assisted digestion of the respective plant sample. Apart from the general determination of the elemental contents and their distribution within the plant, special attention was drawn to the sodium/potassium ratio as well as to changes in the contents of other single charged metal ions.

Keywords
{Brassica oleracea}, metal uptake, salinity stress
National Category
Chemical Sciences
Identifiers
urn:nbn:se:oru:diva-76310 (URN)
Conference
20th Euroanalysis Conference, Istanbul, Turkey, September 1-5, 2019
Available from: 2019-09-12 Created: 2019-09-12 Last updated: 2019-09-13Bibliographically approved
Zeiner, M. & Juranović Cindrić, I. (2019). Metal uptake by Betula pendula (silver birch) grown on contaminated sites. In: : . Paper presented at 20th Euroanalysis Conference, Istanbul, Turkey, September 1-5, 2019.
Open this publication in new window or tab >>Metal uptake by Betula pendula (silver birch) grown on contaminated sites
2019 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Chemical Sciences
Identifiers
urn:nbn:se:oru:diva-76309 (URN)
Conference
20th Euroanalysis Conference, Istanbul, Turkey, September 1-5, 2019
Available from: 2019-09-12 Created: 2019-09-12 Last updated: 2019-09-13Bibliographically approved
Juranović Cindrić, I., Zeiner, M., Starčević, A. & Stingeder, G. (2019). Metals in pine needles: characterisation of bio-indicators depending on species. International Journal of Environmental Science and Technology, 16(8), 4339-4346
Open this publication in new window or tab >>Metals in pine needles: characterisation of bio-indicators depending on species
2019 (English)In: International Journal of Environmental Science and Technology, ISSN 1735-1472, E-ISSN 1735-2630, Vol. 16, no 8, p. 4339-4346Article in journal (Refereed) Published
Abstract [en]

Air pollution can be studied by appropriate bio-indicators, such as pine needles due to their waxy surface. Metal uptake and accumulation is determined by on growing area, but also on the respective species. Scope of the study was to analyse needles of Pinus densiflora Siebold et Zucc., Pinus nigra Arnold, Pinus sylvestris L., and Pinus thunbergiana Franco for metals and metalloids, namely Aluminum, Arsenic, Boron, Barium, Calcium, Cadmium, Cobalt, Copper, Chromium, Iron, Potassium, Lithium, Magnesium, Manganese, Molybdenum, Sodium, Nickel, Lead, Selenium, Strontium, and Zinc. Quantitation of the analytes was performed using inductively coupled plasma atomic emission spectrometry and inductively coupled plasma sector field mass spectrometry after acidic microwave-assisted digestion.

The obtained data were checked for statistically significant differences. The metal levels differ between the various species, but no general tendency was found for all metals. Since the environmental conditions were the same for all sampled trees, the differences in metal accumulation are supposed to be linked to species of pine tree.

The diverse accumulation behaviour can be used for treating polluted soil.

Place, publisher, year, edition, pages
Springer, 2019
Keywords
Bio-monitoring, metal content, pine species, Pinus nigra, Pinus thunbergiana, Pinus densiflora, Pinus sylvestris
National Category
Analytical Chemistry Environmental Sciences
Research subject
Environmental Chemistry
Identifiers
urn:nbn:se:oru:diva-71856 (URN)10.1007/s13762-018-2096-x (DOI)000475910400038 ()2-s2.0-85056142155 (Scopus ID)
Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-11-08Bibliographically approved
Zeiner, M. & Sjöberg, V. (2019). Mountain pine needles as a bio-monitor of potentially toxic elements in higher elevations. In: Books of Abstracts: . Paper presented at 18th Austrian Chemistry Days, Linz, Austria, September 24-27.
Open this publication in new window or tab >>Mountain pine needles as a bio-monitor of potentially toxic elements in higher elevations
2019 (English)In: Books of Abstracts, 2019Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Pine needles are considered useful bio-monitors. Their waxy surface allows them to accumulate various air pollutants. Furthermore, long-term studies are possible, since the needles can reach an age of up to ten years. Mountain pines (Pinus mugo), locally called Latschen, grow amongst others in the Alps in a height of approx. 1000 m to 2200 m. Thus, they seem appropriate specimens to monitor air pollution by potentially toxic elements in higher elevations.

Needle samples were collected on the northern slopes in the Lower Inn Valley (Tirol, Austria). Different sampling sites were selected between Münster and Innsbruck, the altitude ranging from 1200 m to 2000 m. From each sample tree fresh needles, one-year-old and two and more year old needles were taken. The elemental contents in all samples were determined using inductively coupled plasma mass spectrometry after microwave assisted acid digestion.

Compared to results for pines needles from lower altitudes, differences were mainly found in the contents of essential macro elements, but less regarding potentially toxic elements, such as Cd, Cu, Cr, Ni, Pb.

National Category
Chemical Sciences
Research subject
Environmental Chemistry
Identifiers
urn:nbn:se:oru:diva-77004 (URN)978-3-900554-78-1 (ISBN)
Conference
18th Austrian Chemistry Days, Linz, Austria, September 24-27
Available from: 2019-10-03 Created: 2019-10-03 Last updated: 2019-10-07Bibliographically approved
Zeiner, M., Viehauser, P. & Steiner-Friedmann, C. (2019). Teaching Laboratories at a Slower Pace: Introduction of Photocomics as Easy-to-Use Laboratory Instructions. Journal of Chemical Education, 96(11), 2518-2523
Open this publication in new window or tab >>Teaching Laboratories at a Slower Pace: Introduction of Photocomics as Easy-to-Use Laboratory Instructions
2019 (English)In: Journal of Chemical Education, ISSN 0021-9584, E-ISSN 1938-1328, Vol. 96, no 11, p. 2518-2523Article in journal (Refereed) Published
Abstract [en]

Nowadays the majority of young people are exposed to a wide and constantly rising range of stimuli by different media. This sensory overload leads to higher stress levels and therefore decreases the ability to concentrate and focus. Laboratory work, however, requires high concentration in order to achieve reliable results under safe conditions. The tendency toward students showing up in the laboratory without proper preparation is rising, resulting in higher risks of errors when performing experiments. Thus, simple and self-explaining instructions are needed to ensure the requested learning outcome, especially when facing laboratories with high course enrollments. A photocomic combines the ease of presentation with clear pictures showing the relevant steps of experimental work.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019
Keywords
First-Year Undergraduate/General, Second-Year Undergraduate, Laboratory Instruction, Multimedia-Based Learning, Analytical Chemistry
National Category
Chemical Sciences
Identifiers
urn:nbn:se:oru:diva-78294 (URN)10.1021/acs.jchemed.9b00142 (DOI)000516678900019 ()2-s2.0-85074614205 (Scopus ID)
Available from: 2019-11-29 Created: 2019-11-29 Last updated: 2020-04-01Bibliographically approved
Zeiner, M., Pirkl, R. & Juranović Cindrić, I. (2018). Comparison of methods for determining metal pollutants in soil extracts to estimate potential impact on ground water. In: Viktor Gábor Mihucz (Ed.), XVI Hungarian-Italian symposium on spectrochemistry: Book of Abstracts. Paper presented at XVI Hungarian – Italian Symposium on Spectrochemistry: Technological innovation for water science and sustainable aquatic biodiversity, Budapest, Hungary, October 3-6, 2018 (pp. 50). Magyar Kémikusok Egyesülete
Open this publication in new window or tab >>Comparison of methods for determining metal pollutants in soil extracts to estimate potential impact on ground water
2018 (English)In: XVI Hungarian-Italian symposium on spectrochemistry: Book of Abstracts / [ed] Viktor Gábor Mihucz, Magyar Kémikusok Egyesülete , 2018, p. 50-Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Soil is one of the vehicles by which metals enter plants and ground water. Compared to organic pollutants, metals do not biodegrade and are usually not mobile. In order to estimate the potential impact on ground water, the amounts of extractable metals from soil are thus of concern.

Soil matrices may represent a quite complex matrix, thus the appropriate choice of sample preparation and analytical method is of great importance and challenging to ensure reliable and fast data, and keeping labour and time need as low as possible.

To quantitatively determine bioavailable metals, selected soil samples were dried and homogenised, then extracted using acetic acid (c = 0.1 mol/L). These extracts were then analysed on the one hand using classical analytical methods, such as titrimetry (complexometry) and spectrophotometry as well as the other hand by instrumental methods, including inductively-coupled plasma optical emission spectrometry (ICP-OES) and inductively-coupled plasma mass spectrometry (ICP-MS) and graphite furnace atomic absorption spectrometry (GF-AAS), in order to investigate their applicability for the determination of certain soil pollutants, which may have a negative impact on the environment, animals and humans, when entering water bodies.

Regarding the methods, ICP-OES and ICP-MS are multi-element methods offering advantages like low detection limits, good precision and repeatability, but suffer from drawbacks, like high costs due (ultra clean laboratory, supra pure chemicals, high argon consumption) and low tolerance to high matrix loading. This drawback is minimised using GF-AAS, which conversely is only a single-element method, but giving the possibility to overcome problems with concentrations below limits of detection (LOD) due to repetitive sample introduction. The classical methods are characterised by higher LODs, but applying specific reagents precise measurements with low interferences even in complex matrices can be obtained by photometry. Titrimetric methods can be used not only for specific single element determination, but also for determining the sum of certain metals.

Place, publisher, year, edition, pages
Magyar Kémikusok Egyesülete, 2018
Keywords
field tests, metal analysis, methods’ comparison, soil extract
National Category
Chemical Sciences
Research subject
Analytical Chemistry
Identifiers
urn:nbn:se:oru:diva-71861 (URN)978-963-9970-92-2 (ISBN)
Conference
XVI Hungarian – Italian Symposium on Spectrochemistry: Technological innovation for water science and sustainable aquatic biodiversity, Budapest, Hungary, October 3-6, 2018
Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-02-05Bibliographically approved
Juranović Cindrić, I. & Zeiner, M. (2018). Elemental characterisation of the Goji berries (Lycium barbarum). In: Book of abstract: . Paper presented at 3rd World Summit & Expo on Food Technology and Probiotics, Prague, Czech Republic, October 25-26, 2018.
Open this publication in new window or tab >>Elemental characterisation of the Goji berries (Lycium barbarum)
2018 (English)In: Book of abstract, 2018Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Goji berries or wolfberries (Lycium barbarum) are colloquially called superfoods. Due to their remarkable high concentration of antioxidants, dietary fiber, phytosterols, essential amino acids, monounsaturated fats, vitamins and especially valuable trace minerals these fruits are nutrient valuble and have a positive impact on human health. The interest in inorganic analysis of food products mainly stems from nutritional concerns covering up to 14 nutrient (or essential) elements and associated requirements for proper labelling stipulated by national regulatory bodies. In presented study goji fruits wildly grown as well as commercially available ones have been analysed. The element content of the dried goji berries have been determined using inductively coupled plasma - atomic emission spectroscopy and flame emission photometry after acidic microwave assisted digestion. Considering macronutrient elements important for humans, the goji berries analyzed contain Ca, K, Mg and Na in mg g-1 concentration, while the microelements (essential and non essential) B, Ba, Co, Cr, Cu, Fe, Li, Mn, Ni, Pb, Se, Sr, V and Zn are present at µg g-1 level. Apart from the nutritional beneficial content of essential elements, the concentrations of metal contaminants (e.g. Cd, Pb) transfered through food processing and packaging, are valuble information on the general food safety. The obtained results show that the potentially toxic elements are present in berries samples below the maximum allowed values.

Keywords
nutrients, metal, Goji, Lycium barbarum
National Category
Chemical Sciences Nutrition and Dietetics
Research subject
Nutrition
Identifiers
urn:nbn:se:oru:diva-71863 (URN)
Conference
3rd World Summit & Expo on Food Technology and Probiotics, Prague, Czech Republic, October 25-26, 2018
Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-02-01Bibliographically approved
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Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-1215-7705

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