title: Influence of phosphorus and calcium on flame atomic absorption spectrophotometric determination of lead in canned fish products.
abstract: Lead was determined in the presence of whole multiples of the P/Ca ratio found in Portuguese canned fish by flame atomic absorption spectrophotometry with and without using an ashing aid. Under our experimental conditions, use of the ashing aid eliminates P and Ca interference. Results with real samples, spiked with 1, 2, 3, and 4 ppm lead, are presented and statistically treated.
mesh_terms: D000818:Animals; D002118:Calcium / Q000032:analysis*; D005396:Fish Products / Q000032:analysis*; D005519:Food Preservation; D007854:Lead / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis*; D011174:Portugal; D013054:Spectrophotometry, Atomic / Q000379:methods
chemical_list: D010758:Phosphorus; D007854:Lead; D002118:Calcium