Determination of Trace Cd in Alcoholic and Nonalcoholic Beverages by Coupling Cloud Point Extraction with Spectrophotometry

A cloud-point extraction (CPE) process using the nonionic surfactant, Triton X-114 to extract Cd(II) ions from aqueous solutions was investigated. The method is based on the ion-pairing reaction of cadmium(II) with Victoria blue B (VBB⁺) in presence of excess iodide at pH 4.0 and extraction of the complex formed. The chemical variables affecting CPE efficiency were studied, and the analytical characteristics of the method were obtained. The calibration curves were obtained in the ranges of 1.0–30 and 10–500 µg/L for Cd²⁺ ion with the detection limits of 0.337 and 3.77 µg/L at 608 and 634 nm, respectively. The selectivity study was also tested. The precision (N:5, 25 µg/L) was 2.85% relative standard deviation. The results obtained for two certified reference samples were in a good agreement with the certified values. The method was successfully applied to the determination of Cd(II) in beverage samples.

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CONTENT OF SOME TRACE ELEMENTS IN FRESH HONEYBEE POLLEN

CADMIUM, LEAD, ZINC AND COPPER CONTENTS IN SELECTED VEGETABLES AND FRUIT FROM GARDEN ALLOTMENTS OF THE SOUTH–WESTERN POLAND

CONCENTRATION OF LEAD AND CADMIUM IN SELECTED VEGETABLES GROWN IN THE REGION OF WARMIA AND MAZURY

LEAD AND CADMIUM LEVELS IN RAW COW‘S MILK IN LITHUANIA DETERMINED BY INDUCTIVELY COUPLED PLASMA SECTOR FIELD MASS SPECTROMETRY

STALL AND PASTURE FEEDING AS A FACTOR POTENTIALLY AFFECTING THE CONTENT OF DETRIMENTAL CHEMICAL COMPOUNDS IN SELECTED DAIRY PRODUCTS

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.