Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Martins Jansons"'
Autor:
Juris Rubens, Juris Kibilds, Martins Jansons, Inga Piginka-Vjaceslavova, Ilze Barene, Irena Daberte, Laima Liepa, Aija Malniece, Arturs Rubens, Vytaute Starkute, Egle Zokaityte, Modestas Ruzauskas, Elena Bartkiene, Vadims Bartkevics, Iveta Pugajeva
Publikováno v:
Plants, Vol 12, Iss 2, p 297 (2023)
The valorization of wood industry residues is very desirable from a circular economy perspective. Pine needle extracts are known for their health-promoting properties and therefore can be used as herbal remedies and nutritional supplements. Since the
Externí odkaz:
https://doaj.org/article/c4723af027d94271b884a5416d0797da
Autor:
Zane Berzina, Romans Pavlenko, Martins Jansons, Elena Bartkiene, Romans Neilands, Iveta Pugajeva, Vadims Bartkevics
Publikováno v:
Toxins, Vol 14, Iss 2, p 91 (2022)
Wastewater-based epidemiology (WBE) is a promising biomonitoring approach with the potential to provide direct information on human intake and exposure to food contaminants and environmental chemicals. The aim of this study was to apply WBE while emp
Externí odkaz:
https://doaj.org/article/1744249b98354c1aa78abd2f3b796d9c
Autor:
Ingars Reinholds, Janis Rusko, Iveta Pugajeva, Zane Berzina, Martins Jansons, Olga Kirilina-Gutmane, Kristina Tihomirova, Vadims Bartkevics
Publikováno v:
Foods, Vol 9, Iss 1, p 93 (2020)
The occurrence and dietary exposure assessment of 16 mycotoxins, 6 biogenic amines (BAs), and 13 metallic elements in blue-veined cheeses (n = 46) is reported. Co-occurrence of mycophenolic acid (≤599 µg·kg−1) with roquefortine C (≤5454 µg·
Externí odkaz:
https://doaj.org/article/56f758e5d3a8484bb0082b4788c3ef0c
Autor:
Elena Bartkiene, Sanita Zute, Vadims Bartkevics, Ingars Reinholds, Iveta Pugajeva, Martins Jansons, Deniss Fedorenko
Publikováno v:
Food Additives & Contaminants: Part B. 14:115-123
Twenty-seven mycotoxins in unprocessed cereals (n = 110) and pulses (n = 23) harvested in Latvia were analysed by nanoflow liquid chromatography combined with Orbitrap high-resolution mass spectrometry. One or more mycotoxins were found in 99% of the
Autor:
Iveta Pugajeva, Ingus Perkons, Martins Jansons, Veronika Sukajeva, Vadims Bartkevics, Laura Elina Ikkere
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 205
The biomarkers used in wastewater-based epidemiology studies have a wide range of physicochemical properties, making simultaneous analysis extremely challenging or even impossible. So far, the majority of analytical procedures employed in this field
Publikováno v:
Journal of Separation Science. 42:3077-3085
Ion chromatography coupled with mass spectrometry is an established technique for determination of ionic analytes, however, sophisticated buffer removal equipment is required to eliminate inorganic compounds from the eluate before introduction into t
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 164:402-412
A new sensitive and selective multi-residue method based on liquid chromatography - Orbitrap high resolution mass spectrometry (LC-Orbitrap-HRMS) was developed and validated for the determination of 17 anticoccidials in poultry and eggs. Instrumental
Publikováno v:
Critical Reviews in Analytical Chemistry. 49:439-458
This article covers recent trends of carbonaceous nanomaterial supported solid phase extraction for the liquid and gas chromatography analysis of pesticides in food samples. Several advanced carbonaceous nanosorbents have been reported over the previ
Publikováno v:
Journal of chromatography. A. 1676
A method for the determination of pyrrolizidine alkaloids in tea, honey, herbal tinctures, and milk samples was developed by employing nano-LC-MS with high-resolution Orbitrap mass spectrometry. Quantitation was performed using the available analytic
Publikováno v:
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences. 1177
Glyphosate and other polar and acidic pesticides have been particularly studied due to the concerns over widespread and intensive use. The chemical properties of these compounds necessitate use of customised methods, such as derivatisation or ion exc