Joanna Kuc
Technical Transactions, Chemistry Issue 1 Ch (4) 2016, 2016, pp. 49-56
https://doi.org/10.4467/2353737XCT.16.046.5308A study on the correlation between the concentration of hexabromocyclododecane and the percentage of fat in meat tissues of selected marine fish species, both marine and farmed, has been carried out. The relationships between variables based on a determination of the coefficients of linear correlation r-Pearson were determined and graphs illustrating these dependencies were presented.
Joanna Kuc
Technical Transactions, Volume 8 Year 2017 (114), 2017, pp. 29-35
https://doi.org/10.4467/2353737XCT.17.126.6877The diastatic number in five samples of honey has been determined by two methods: according to guidelines included in Polish standard PN-88/A-77626 and the Phadebas method. Research shows that the storage of honeys did not have a significant impact on lowering of diastatic number. However, long-term storage of honey was characterized a reduction of the diastase number. The correlation between the two applied methods was very strong (r = 0.921).
Joanna Kuc
Technical Transactions, Chemistry Issue 2-Ch (17) 2012, 2012, pp. 73-82
https://doi.org/10.4467/2353737XCT.14.120.1897Two methods of isolation of hexabromocyclododecane from fat matrix by using size exclusion chromatography were developed and compared. Standard solutions and salmon tissue extract were investigated. Solvents were chosen for the elution of sample components from the Bio-Beads S-X3 beads. Studies have shown that the use of the SEC technique to isolate HBCD from fat matrix allows effective removal of most of the interfering components.
Joanna Kuc
Technical Transactions, Chemia Zeszyt 1-Ch (18) 2014 , 2014, pp. 45-55
https://doi.org/10.4467/2353737XCT.14.275.3363Methods of sample preparation with a particular emphasis on extraction and purification techniques are described. Gas and liquid chromatography techniques applied for the determination of hexabromocyclododecane are presented. Issues relating to the determination of this compound in food samples are discussed.