Journal
ANALYTICAL LETTERS
Volume 33, Issue 8, Pages 1625-1633Publisher
MARCEL DEKKER INC
DOI: 10.1080/00032710008543149
Keywords
flotation spectrophotometry; alizarin complexes; aluminium determination; milk
Categories
Ask authors/readers for more resources
Aluminium was determined in a weakly alkaline medium by reaction with alizarin at trace level. Flotation of the complex was carried out with heptane, followed by dissolution in N,N-dimethylformamide (DMF) for subsequent spectrophotometric determination. The molar absorptivity was 2.92x10(5) mol(-1) cm(-1) at 518 nm. Beer's law was obeyed in the range 5-80 mu g/l and the detection limit was 0.4 mu g/l. The reliability of the procedure was confirmed by determination of a sample of milk with Graphite Furnace Atomic Absorption Spectrophotometric method (GFAAS). The precision and accuracy of the method were both acceptable via F and t tests at the 95% confidence level.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available