University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Classification: Vegetable -> cucumber

Citations 2

"Influences Of Lead Contamination And Complexing Agents On The Metal Uptake Of Cucumber"
Microchem. J. 1995 Volume 51, Issue 1-2 Pages 207-213
Zaray G., Phuong D. D. T., Varga I., Varga A., Kantor T., Cseh E. and Fodor F.

Abstract: Cucumber plants were grown in six different nutrient solutions with varying compounds of iron (FeCl3, Fe-citrate, or Fe-EDTA) with and without addition of lead. The concentrations of B, Ca, Cu, Fe, Mg, Mn, Ni, Pb, and Zn in the third leaves of the plants were determined by inductively coupled plasma-atomic emission spectrometry after microwave-assisted acidic digestion of the dried samples. In the presence of EDTA lead contamination results in growth stimulation and considerably higher uptake of Cu and Ni. However, addition of lead to the nutrient solutions containing citrate or chloride leads to a significant reduction of growth and a higher uptake of Ca, Mg, Zn, and Ni. The magnitude of lead effect is definitely stronger in presence of citrate.
Boron Calcium Copper Iron Magnesium Spectrophotometry Complexation

"Determination Of Nitrite In Water And Foods By Flow Injection Analysis"
Shipin Yu Fajiao Gongye 1989 Volume 5, Issue 5 Pages 75-77
ZHAO Fenglin ; Yao Jie ; Feng Jianzhang ; Ma Huichang

Abstract: An automated analyzer. system was used to determine NO2- in food and water samples. The sample was injected into the flow tubes of the analyzer. and reacted with aminophenylsulfonic acid and α-aminonaphthalene salt to form a purple-red product. Spectrophotometric detection was at 540 nm. The method was applied in the analysis of pickled cucumber, pickled vegetable and natural water.
Nitrite Spectrophotometry Automation