Leaching of aluminium from cooking pans and food containers

Aluminium content of selected foods and food products

“…Exposure of the human body to aluminium may be by food [1][2][3][4][5][6][7][8] including drinking water, fruit juices wine and beer [9][10][11], articles of daily use that are made of aluminium, cosmetics and pharmaceuticals such as local therapeutic agents, antidiarrhoeal drugs or antacids. Increased aluminium exposure can be compensated for by excretion via intestines and normal, healthy kidneys.…”

Determination of the total hardness in tap water using acoustic wave sensors

“…2 and 3 one can conclude that, as expected, the membranes are not 100% selective to each metal, but selectivity is only important if the interfering metals are present in the sample in significant amounts, in which case sensors for other metals already developed [11][12][13] should be added to the array. As higher amounts of others cations, besides Ca 2+ and Mg 2+ , are not expected in tap waters, analyses have been performed for the moment just with two sensors: one for Ca and one for Mg.…”

The quality of our drinking water: Aluminium determination with an acoustic wave sensor

“…The aluminium-sensitive membrane used to coat the piezoelectric quartz crystal was prepared as previously reported elsewhere [14]. The piezoelectric quartz crystal was spin-coated on one of the faces with the aluminium-sensitive membrane and dried.…”

“…A 9 MHz piezoelectric quartz crystal was spin-coated with a solution of the specific membrane for aluminium previously reported [14]. Solution was applied until an homogeneous membrane, which caused a frequency decrease at least of 14.5 kHz after drying, was obtained.…”

“…An acoustic wave sensor for aluminium was already reported [14]. However, the analytical range for the sensor, from 2.7 to 7.2 mg L −1 , is not adequate for this analysis.…”