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Figure 2 | Environmental Health

Figure 2

From: Migration protocol to estimate metal exposure from mouthing copper and tin alloy objects

Figure 2

Time course of the metal released from whitemetal alloys. Two parallel migration tests were carried out for 8 hours, one in synthetic saliva medium with stomach Mucin species and the other in saliva with sub maxillary gland Mucin specie. Tests were performed at pH 7.2, 37°C and with 60 rpm agitation rate. Plot A shows metal release kinetics of tin/lead alloy 3 sample in both media, and plot B the metal release kinetics of tin/lead alloy 5 sample in both media. Lead and tin released in saliva with stomach Mucin are presented in filled circle and triangle symbols, respectively; and lead and tin released in saliva with sub maxillary gland Mucin are presented in hollow circle and triangle, respectively. Dashed lines correspond to linear or first order kinetic fits of the results obtained with stomach Mucin species (pig); solid lines correspond to linear or first order kinetic fits of the results obtained with sub maxillary gland Mucin (bovine).

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