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Polevojj spektral'nyjj apparatno-programmnyjj kompleks dlja podsputnikovojj validacii distancionnogo issledovanija rastitel'nosti

100%

Donec V., Kochubejj S., Jacenko V., Brovarec A., Kazancev T., Brovchenko V.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2014

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tom 16

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nr 3

2

Estimation of antioxidant components of tomato using VIS-NIR reflectance data by handheld portable spectrometer

63%

Szuvandzsiev P., Helyes L., Lugasi A., Szanto C., Baranowski P., Pek Z.

International Agrophysics

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2014

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tom 28

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nr 4

Processing tomato production represents an important part of the total production of processed vegetables in the world. The quality characteristics of processing tomato, important for the food industry, are soluble solids content and antioxidant content (such as lycopene and polyphenols) of the fruit. Analytical quantification of these components is destructive, time and labour consuming. That is why researchers try to develop a non-destructive and rapid method to assess those quality parameters. The present study reports the suitability of a portable handheld visible near infrared spectrometer to predict soluble solids, lycopene and polyphenol content of tomato fruit puree. Spectral ranges of 500-1000 nm were directly acquired on fruit puree of five different tomato varieties using a FieldSpec HandHeld 2™ Portable Spectroradiometer. Immediately after spectral measurement, each fruit sample was analysed to determine soluble solids, lycopene and polyphenol content. Partial least square regressions were carried out to create models of prediction between spectral data and the values obtained from the analytical results. The accuracy of the predictions was analysed according to the coefficient of determination value (R2), the root mean square error of calibration/cross-validation.

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EPR spectroscopy of free radicals in the perfused heart

63%

Zweier J. L., Kuppusamy P.

Current Topics in Biophysics

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1994

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tom 18

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nr 1

4

Badania metodyczne oznaczania całkowitej zawartości rtęci w glebach i materiale roślinnym

51%

Malczyk P., Dabkowska-Naskret H.

Acta Agrophysica

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2001

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tom 56

5

Proby pomiarow malych radioaktywnosci za pomoca spektrometru Tristan-1024

45%

Wisniewski K.

Roczniki Państwowego Zakładu Higieny

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1992

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tom 43

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nr 2

169-177

W pracy przedstawiono sposób pomiaru aktywności cezu i potasu-40 w próbach środowiskowych za pomocą spektrometru gamma Tristan-1024 polegający na uwzględnieniu wpływu efektu Comptona na kształt obserwowanego widma, a następnie policzeniu impulsów w odpowiednich przedziałach energetycznych. Wykonane pomiary wykazały, że możliwe jest szybkie zmierzenie aktywności K-40 powyżej 30 Bg/kg oraz aktywności izotopów cezu Cs-137 i Cs-134 rzędu kilku Bq/kg w tzw. „świeżej" próbie bez konieczności stosowania kosztownej preparatyki

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Badanie pozostałości spinosadu, azadyrachtyny i rotenonu w materiale roślinnym oraz w glebie z wykorzystaniem zmodyfikowanej metody QuEChERS i oznaczenia techniką chromatografii cieczowej sprzężonej ze spektrometrem mas (UPLC-MS/MS)

38%

Drozdzynski D., Kowalska J., Remlein-Starosta D.

Progress in Plant Protection

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2010

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tom 50

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nr 4

Organic crop production must obey strict regulations. In recent years, it is promoted in Poland by government financial support which has been reflected in Rural Areas Development Plans for 2004–2006 and 2007–2013. Thanks to putting into effect the agricultural and environmental package „Organic production”, Polish farmers can apply for EU surcharges, which are targeted at those who by implementation of organic production do not contribute to environmental pollution. Implementation of organic production forced the farmers to obey the EU Council Regulation No 834/2007 on organic production and labeling of organic products. In other EU countries, farmers growing organic crops have access to a wider range of „ecological” insecticides than do the farmers in Poland; these include such insecticides as spinosad (sum of spinosyn A and spinosyn D), azadirachtin and rotenone. There was then a need to develop an analytical method for the mentioned insecticides before they are registered in Poland. In this work, the QuEChERS sample preparation technique was used prior to ultra performance liquid chromatographic/mass spectrometric determination of „ecological” insecticides in plant material (tomato and cabbage) as well as in soil. Very satisfactory analytical performance date were obtained at three spiking levels of 0.01, 0.05, 0.1 mg/kg. Limits of determination were 0.01 mg/kg in all cases. The method was used to analyze samples under grant No NN 310 4358 33r, entitled „Application of natural substances in protection of organically grown potato and cabbage”, being in progress in Institute of Plant Protection – National Research Institute.

Ograniczanie wyników

1 Acta Agrophysica

1 Current Topics in Biophysics

1 International Agrophysics

1 Motrol. Motoryzacja i Energetyka Rolnictwa

1 Progress in Plant Protection

1 Roczniki Państwowego Zakładu Higieny

1 Baranowski P.

1 Brovarec A.

1 Brovchenko V.

1 Dabkowska-Naskret H.

1 Donec V.

1 Drozdzynski D.

1 Helyes L.

1 Jacenko V.

1 Kazancev T.

1 Kochubejj S.

1 Kowalska J.

1 Kuppusamy P.

1 Lugasi A.

1 Malczyk P.

1 Pek Z.

1 Remlein-Starosta D.

1 Szanto C.

1 Szuvandzsiev P.

1 Wisniewski K.

1 Zweier J. L.

2 2014

1 2010

1 2001