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21 results on '"Sapolaite, Justina"'

8. Indoor-outdoor relationship of submicron particulate matter in mechanically ventilated building: Chemical composition, sources and infiltration factor

Author

Garbarienė, Inga, Pauraitė, Julija, Pashneva, Daria, Minderytė, Agnė, Sarka, Karolis, Dudoitis, Vadimas, Davulienė, Lina, Gaspariūnas, Mindaugas, Kovalevskij, Vitalij, Lingis, Danielis, Bučinskas, Laurynas, Šapolaitė, Justina, Ežerinskis, Žilvinas, Mainelis, Gedi, Ovadnevaitė, Jurgita, Kecorius, Simonas, Plauškaitė-Šukienė, Kristina, and Byčenkienė, Steigvilė

Published
2022
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12. The effect of animal herding practices on the diversity of human stable isotope values in North Central Asia

Author

Ananyevskaya, Elina, Akhatov, Gaziz, Loman, Valeriy, Dmitriev, Evgeniy, Ermolayeva, Antonina, Evdokimov, Valeriy, Garbaras, Andrius, Goryachev, Alexander, Kukushkin, Alexey, Kukushkin, Igor, Kurmankulov, Zholdasbek, Logvin, Andrei, Lukpanova, Yana, Onggar, Akan, Sakenov, Sergazy, Sapolaite, Justina, Shevnina, Irina, Usmanova, Emma, Utubayev, Zhanbolat, Varfolomeev, Viktor, Voyakin, Dmitryi, Yarygin, Sergei, and Motuzaite Matuzeviciute, Giedre

Published
2020
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16. The Penetration of Chromium: An Up-To-Date 0.5% Potassium Dichromate Vehicle Comparison.

Author

Linauskiene, Kotryna, Dahlin, Jakob, Ezerinskis, Zilvinas, Isaksson, Marléne, Sapolaite, Justina, and Malinauskiene, Laura

Abstract

Supplemental digital content is available in the text. Background: Chromium (Cr) contact allergy is frequent in many industrialized countries. The knowledge of the factors that can influence percutaneous penetration is very important assessing the risk of human exposure. Objective: The aim of the study was to compare the concentration of Cr in various skin layers using 2 different vehicles. Methods: Full-thickness (approximately 1 mm) porcine ear skin was mounted in Franz-type diffusion cells. Duplicate potassium dichromate preparations in 0.5% petrolatum (pet) and 0.5% in aqua (aq) were applied to the donor compartment facing the epidermis for 24 hours. After the experiment, the porcine skin samples were cut with a microtome. All samples were analyzed for total Cr concentration by inductively coupled plasma sector field mass spectrometry. The limit of detection was 0.001 μg/cm3. Results: Chromium was detected in both recipient phases. The distribution of Cr in the skin is similar for pet and aq preparations, but the concentration of Cr detected in the skin was almost 2 times lower for pet comparing aq preparations. Conclusions: Both vehicles were suitable for penetrating the skin. Less Cr is found in the skin when pet is used as a vehicle. Acid wipe sampling and finger immersion test results might be false-negative for Cr in occupations involving contact with Cr salts in aq solutions. [ABSTRACT FROM AUTHOR]

Published
2022
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18. Using Compound-Specific and Bulk Stable Isotope Analysis for Trophic Positioning of Bivalves in Contaminated Baltic Sea Sediments

Author

Ek, Caroline, Holmstrand, Henry, Mustajärvi, Lukas, Garbaras, Andrius, Bariseviciute, Ruta, Sapolaite, Justina, Sobek, Anna, Gorokhova, Elena, Karlson, Agnes M. L., Ek, Caroline, Holmstrand, Henry, Mustajärvi, Lukas, Garbaras, Andrius, Bariseviciute, Ruta, Sapolaite, Justina, Sobek, Anna, Gorokhova, Elena, and Karlson, Agnes M. L.

Abstract

Stable nitrogen isotopes (delta N-15) are used as indicators of trophic position (TP) of consumers. Deriving TP from delta N-15 of individual amino acids (AAs) is becoming popular in ecological studies, because of lower uncertainty than TP based on bulk delta N-15 (TPbulk). This method would also facilitate biomagnification studies provided that isotope fractionation is unaffected by toxic exposure. We compared TPAA and TPbulk estimates for a sediment-dwelling bivalve from two coastal sites, a pristine and a contaminated. Chemical analysis of PCB levels in mussels, sediments, and pore water confirmed the expected difference between sites. Both methods, but in particular the TPAA underestimated the actual TP of bivalves. Using error propagation, the total uncertainty related to the analytical precision and assumptions in the TP calculations was found to be similar between the two methods. Interestingly, the significantly higher intercept for the regression between T-AA, and TPbulk in the contaminated site compared to the pristine site indicates a higher deamination rate due to detoxification as a result of chronic exposure and a higher N-15 fractionation. Hence, there is a need for controlled experiments on assumptions underlying amino acid-specific stable isotope methods in food web and bimagnification studies.

Published
2018
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19. Determination of 129I in Arctic snow by a novel analytical approach using IC-ICP-SFMS

Author

Ezerinskis, Zilvinas, Spolaor, Andrea, Kirchgeorg, Torben, Cozzi, Giulio, Vallelonga, Paul, Kjaer, Helle A., Sapolaite, Justina, Barbante, Carlo, Druteikiene, Ruta, Ezerinskis, Zilvinas, Spolaor, Andrea, Kirchgeorg, Torben, Cozzi, Giulio, Vallelonga, Paul, Kjaer, Helle A., Sapolaite, Justina, Barbante, Carlo, and Druteikiene, Ruta

Published
2014

21. The Penetration of Chromium: An Up-To-Date 0.5% Potassium Dichromate Vehicle Comparison.

Author

Linauskiene K, Dahlin J, Ezerinskis Z, Isaksson M, Sapolaite J, and Malinauskiene L

Subjects
Animals, Excipients, Humans, Petrolatum, Salts, Skin Absorption, Swine, Chromium, Potassium Dichromate adverse effects
Abstract

Background: Chromium (Cr) contact allergy is frequent in many industrialized countries. The knowledge of the factors that can influence percutaneous penetration is very important assessing the risk of human exposure., Objective: The aim of the study was to compare the concentration of Cr in various skin layers using 2 different vehicles., Methods: Full-thickness (approximately 1 mm) porcine ear skin was mounted in Franz-type diffusion cells. Duplicate potassium dichromate preparations in 0.5% petrolatum (pet) and 0.5% in aqua (aq) were applied to the donor compartment facing the epidermis for 24 hours. After the experiment, the porcine skin samples were cut with a microtome. All samples were analyzed for total Cr concentration by inductively coupled plasma sector field mass spectrometry. The limit of detection was 0.001 μg/cm3., Results: Chromium was detected in both recipient phases. The distribution of Cr in the skin is similar for pet and aq preparations, but the concentration of Cr detected in the skin was almost 2 times lower for pet comparing aq preparations., Conclusions: Both vehicles were suitable for penetrating the skin. Less Cr is found in the skin when pet is used as a vehicle. Acid wipe sampling and finger immersion test results might be false-negative for Cr in occupations involving contact with Cr salts in aq solutions., Competing Interests: The authors have no funding or conflicts of interest to declare., (Copyright © 2021 American Contact Dermatitis Society. All Rights Reserved.)

Published
2022
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