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1

Detecting and determining carazolol residues in biological samples

100%
Posyniak A., Semeniuk S., Niedzielska J., Zmudzki J.
Polish Journal of Environmental Studies
|
1996
|
tom 05
|
nr 4
A simple and rapid method is described which allows analysis of Carazolol (ß-blocker agent) in tissue of pig by thin layer and liquid chromatography. The method utilizes an octadecyl solid phase column that selectively absorbs this drug and significantly improves sample clean-up procedure. The compound is eluted from the column with acidic acetonitrile. Analysis is performed using TLC for detection and qualitative determination and isocratic reversed-phase LC for confirmation and quantitation. The detection limit was 10 ng g-1 (TLC) and 2 ng g-1 (LC). The recoveries of Carazolol from spiked samples were above 80%. The procedure is suitable for routine residue analysis.
2

Solvent microextraction in routine toxicological analysis of amphetamine and metamphetamine

100%
Janus T., Borowiak K. S., Potocka B., Jarmolowicz Z.
Acta Poloniae Toxicologica
|
2002
|
tom 10
|
nr 2
3

Measurement of total antioxidant capacity - a review

84%
Zielinski H., Kozlowska H.
Polish Journal of Food and Nutrition Sciences
|
1999
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tom 08
|
nr 2
This review deals with selected recently used analytical methods for determining the antioxidant activity of compounds being investigated as well as total antioxidant capacity of the biological samples.
4

Modifications of spectrophotometric methods for antioxidative vitamins determination convenient in analytic practice

84%
Rutkowski M., Grzegorczyk K.
Acta Scientiarum Polonorum. Technologia Alimentaria
|
2007
|
tom 06
|
nr 3
Although there are numerous methods for quantitative determination of antioxidative vitamins: C, E, and A, there are no methods favourable for the broadly understood analytic practice – they have various faults and limitations or require expensive apparatus. Therefore, we have elaborated modifications of valuable spectrophotometric methods for determination each of those vitamins, which originally could not be applied for laboratory practice from various regards. They are based on: for vitamin C – colour reaction with periodically prepared phosphotungstate reagent; for vitamin E – colour reaction with batophenanthroline, FeCl3 and H3PO4; for vitamin A – spectrophotometric measurement of extracts of tested samples. Control tests showed complete correctness of analytic parameters obtained with those modifications with preservation of advantages of the original methods. Therefore they can be successfully implemented to the routine clinical analyses’. The elaborated modifications can also be used for determination of the a/m vitamins in foodstuffs, for example: in juices, milk and homogenates or extracts of solid food.
5

Assessment of selected heavy metal contents in medicinal plants, tea leaves and chocolate using atomic absorption spectrometry

84%
Srogi K.
Acta Toxicologica
|
2006
|
tom 14
|
nr 1-2
6

Detection of foot-and-mouth disease virus in biological samples - recent diagnostic possibilities

67%
Paprocka G., Niedbalski W., Kesy A., Fitzner A.
Bulletin of the Veterinary Institute in Puławy
|
2010
|
tom 54
|
nr 4
Primary bovine thyroid cell cultures and IB-RS-2 continuous cell line were used for foot-and-mouth disease virus (FMDV) isolation. In both cell culture systems, all tested samples gave positive results and the specificity of isolated virus was confirmed by the Ag-FLISA. Results of virus isolation test agreed with those obtained by RT-PCR and rRT-PCR, which enabled detection of the genetic material of FMDV. This indicates a high and comparable sensitivity of the applied diagnostic assays, which permit a reliable detection of FMDV in biological material.
7

Oznaczanie ergosterolu w probach biologicznych za pomoca chromatografii cienkowarstwowej

59%
Wlodarczyk E., Zarzycki P. K.
Bromatologia i Chemia Toksykologiczna
|
2005
|
tom 38
|
nr 4
361-369
8

Wykorzystanie metody wysokosprawnej chromatografii cieczowej [HPLC] do oznaczania witamin rozpuszczalnych w tluszczach [CZ. 2]

51%
Gasior R., Pieszka M.
Biuletyn Informacyjny. Instytut Zootechniki
|
2000
|
tom 38
|
nr 4
53-62
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