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nr 01
1-3
EN
Investigation results concerning the cadmium content in food products in some countries and in Poland, carried out by the State Enterprise for Hygiene, Sanepid and research centres in industrialized regions of the country. Estimation of the Cd consumption range in the whole-day diet. The highest Cd consumption: in Japan, ERG and Poland. Charge with this element of children in conversion to the kg of body weight higher than the admissible dose for adults. Exceptional harmfulness of Cd for the human organism.
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tom 45
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nr 3
207-214
PL
Przedstawiono tematykę obrad XIX Sesji Komitetu Kodeksu Żywnościowego FAO/WHO ds. Metod Analiz i Pobierania Próbek, które odbywały się w Budapeszcie w dniach 21 - 25.03.1994 r. Komisja Kodeksu Żywnościowego FAO/WHO poszerzyła zakres kompetencji ww. Komitetu o zagadnienia dotyczące systemów zapewnienia jakości w laboratoriach.
EN
The topics of the XIX Session of the Codex Alimentarius Committee held in Budapest are reviewed. In the report on the Session the main stress was laid on the matters connected with guidelines on sampling, endorsement of methods of analysis for codex standards and the matters concerning quality assurance systems in laboratories.
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1996
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tom 47
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nr 2
223-230
PL
Opracowano procedurę analityczną oznaczania rtęci w produktach spożywczych, głównie pochodzenia roślinnego, na poziomie 5 µg/kg i niższym. Obejmuje ona mineralizację mikrofalową próbki i oznaczenie zawartości rtęci techniką CVAAS z zastosowaniem całkowicie zautomatyzowanego analizatora rtęci f-my LDC, USA.
EN
The studies on the analytical procedure for mercury determination in food of plant origin on the level of 5 µ/kg, were carried out. For this reason, microwave digestion with HNO3 and cold vapour atomic absorption spectrometry (CVAAS) with tin (II) chloride reduction, were used. Both digestion and determination conditions were experimentally optimized. The procedure was checked using two real food samples: apple juice and preserved carrot with peas both spiked on two levels with mercury. On these results basic statistic parameters that charcterized the method as standard deviation, relative standard deviation and recovery, were calculated. The precision was generally better than 10%, and recovery ranged from 96 to 100%. The detection limit of the entire procedure, defined as the mercury concentration corresponding to three times the standard deviation of ten consecutive determinations of blank measurement, was 0,012 µg/l. Taking into account the amount of a sample and the factor of dilution the detection limit corresponds to 0,3 µg/kg for 1,0 g, 1,0 µg/kg for 0,3 g, and 0,15 µg/l for 2 ml of a sample. Accuracy of the analytical procedure was tested by analysing five certified reference plant materials with the mercury contents ranged from 6 to 280 µg/kg. The obtained results were in a good agreement with their certified values. Both analyses of the spiked real samples and certified reference materials allow to suggest that this analytical procedure based on microwave digestion and cold vapour determination using Fully Automated Mercury System is suitable for mercury determination in food products of plant origin on the level of µg/kg or µg/І, with a good precision and accuracy.
PL
Przedstawiono aktualną działalność Komitetu ds. Metod Analiz i Pobierania Próbek w świetle problematyki dyskutowanej podczas 24 Sesji w Budapeszcie w dniach 18-22 listopada 2002 r. Omówiono wybrane dokumenty; nad którymi prace są w znacznym stopniu zaawansowane bądź które wzbudzają największe zainteresowanie.
EN
In the light of issues discussed during 24th Session of Codex Committee on Methods of Analysis and Sampling that was held in Budapest, 18-22 November 2002, the current activity of this Committee is presented. More detailed information about some of the most advanced or interesting documents is included, i. e. Proposed Draft General Guidelines On Sampling, Harmonized IUPAC Guidelines for Single-Laboratory Validation of Methods of Analysis, Consideration of methods for the detection and identification of food derived from biotechnology.
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