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Determination of traces of heavy metals in oils and fats by arc spectrography
Author(s) -
Farhan F. M.,
Pazandeh H.
Publication year - 1976
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02633307
Subject(s) - graphite , manganese , copper , nickel , quartz , electrode , magnesium , materials science , metallurgy , aluminium , carbon fibers , analytical chemistry (journal) , matrix (chemical analysis) , chemistry , chromatography , composite material , composite number
A new and simple method is described for direct and simultaneous determination of traces in fats and oils of iron, copper, nickel, lead, silver, aluminum, magnesium, calcium and manganese. Graphite powder is used as spectroscopic buffer and for preparation of standard powders. Using necked cupped carbon electrode and cone shaped counter electrode, a steady DC arc discharge is obtained with graphite matrix. A quartz spectrograph of high resolving power is used for this determination.