Stojkovski, Velimir
Preferred name
Stojkovski, Velimir
Official Name
Stojkovski, Velimir
Main Affiliation
Email
v.stojkovski@ukim.edu.mk
22 results
Now showing 1 - 10 of 22
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Item type:Publication, Platelet-rich plasma as a promising bioscaffold for enhancing peripheral nerve regeneration: An experimental study in a rat sciatic nerve model(Journal of Biological Methods, 2025); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Validation of screening method for determination of methyltestosterone in fish(Mac Vet Rev, 2013-03-15); ; ; Todorovic AleksandraAnabolic androgenic steroids are synthetic derivatives of testosterone, which is the primary male sex hormone. These anabolic agents are used to increase the weight gain, to improve the food efficiency, storing proteins and to decrease fatness. However, depending on the use of anabolic agent in animal feed, anabolic residues that may occur in meat and meat products present risks to human health. The aim of this study was the validation of screening ELISA method for determination of methyltestoterone anabolic steroid in fish. The validation process was carried out according to Commission Decision 2002/657/EC criteria. The detection limit for methyltestosterone was 140.95 ng/kg and the detection capability was 564.43 ng/kg. The overall recoveries and the coefficients of variation (CV) were in the range of 82.4%-97.4% and 1.5%-6.9%, respectively, a working range between 50 to 4050 ng/kg, and the regression equation of the final inhibition curve was: y= -0,1741x + 1,5082, R2 = 0.9927. Because of the good recovery and precision, and satisfactory detection capability, this method is applicable in official control laboratories as a rapid screening method for determination of methyltestosterone in fish. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A New Lc-Ms/Ms Method for Multiple Residues/Contaminants In Bovine Meat(Research Square, 2020-07-10); <jats:title>Abstract</jats:title> <jats:p>A multi-class and multi-residue/contaminant method for the determination of veterinary drug and pesticide residues and mycotoxins in bovine meat has been developed and validated. The veterinary drug residues/contaminants included antimicrobials, anabolic hormones, lactones, β-agonists, mycotoxins, and pesticides. Isotopic labeled internal standards were included to compensate residual matrix effects. The calibrators used in the method demonstrated linearity with the coefficient of correlation (R2) > 0.98. The decision limit (CCα) values were in the range from 0.067 to 2103.84 μg/kg, while the range for detection capability (CCβ) was from 0.083 to 2482.13 μg/kg. The limit of detection (LOD) and limit of quantification (LOQ) were in the range from 0.059 to 291.36 μg/kg, and 0.081 to 328.13 μg/kg, respectively. The recovery of analytes ranged from 61.28 % to 116.20 %. The intra-day coefficient of variation (CV) was from 0.97 to 25.93 % and the inter-day CV was 2.30-34.04 %. The method has been used for the determination of 49 residues/contaminants in bovine meat.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Multi-class/residue method for determination of veterinary drug residues, mycotoxins and pesticide in urine using LC-MS/MS technique(Springer Science and Business Media LLC, 2023-09-14); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Determination of Aflatoxins B1, B2, G1 and G2 in animal feeds with fluorimetric method(Српско ветеринарно друштво, Факултет за ветеринарна медицина, Србија, 2011-09-17); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Determination of trenbolone in cattle meat with ELISA method(Faculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, North Macedonia, 2012-10-04); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A new LC-MS/MS method for multiple residues/contaminants in bovine meat(Springer Science and Business Media LLC, 2021-12-08); A multi-class and multi-residue/contaminant method for the determination of veterinary drug and pesticide residues and mycotoxins in bovine meat has been developed and validated. The veterinary drug residues/contaminants included antimicrobials, anabolic hormones, lactones, β-agonists, mycotoxins, and pesticides. Isotopic labeled internal standards were included to compensate residual matrix effects. The calibrators used in the method demonstrated linearity with the R2 > 0.98. The decision limit (CCα) values were in the range from 0.067 to 2103.84 μg/kg, while the range for detection capability (CCβ) was from 0.083 to 2482.13 μg/kg. The limit of detection (LOD) and limit of quantification (LOQ) were in the range from 0.059 to 291.36 μg/kg, and 0.081 to 328.13 μg/kg, respectively. The recovery of analytes ranged from 61.28% to 116.20%. The intra-day coefficient of variation (CV) was from 0.97 to 25.93% and the inter-day CV was 2.30-34.04%. The method has been used for the determination of 49 residues/contaminants in bovine meat. Application of the method in routine analysis in bovine samples, revealed in limited samples the presences of enrofloxacin, oxytetracycline and sulfadiazine at the concentration of 35.22 µg/kg, 27.35 µg/kg, and 36.20 µg/kg, respectively. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Therapeutic effects of goat milk(Vasile Goldis University Press Arad, 2011-09-23); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Determination of zeranol residues levels in bovine urine with ELISA method(Faculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, North Macedonia, 2012-09-04); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, DETERMINATION OF COMONLY USED ARTIFICIAL COLORS IN MEAT AND MEAT PRODUCTS USING HPLC-DAD METHOD(Faculty of Veterinary Medicine - Skopje, 2024-09-22); ;
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