ESTIMATION OF MEASUREMENT UNCERTAINTY IN THE DETERMINATION OF Fe CONTENT IN POWDERED TONIC FOOD DRINK USING GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY | Zendy

Harry Budiman | Zendy; Fransiska Sri H | Zendy; Krismastuti Krismastuti | Zendy; Nuryatini Nuryatini | Zendy

Open Access

ESTIMATION OF MEASUREMENT UNCERTAINTY IN THE DETERMINATION OF Fe CONTENT IN POWDERED TONIC FOOD DRINK USING GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

Author(s) -

Harry Budiman,

Fransiska Sri H,

Krismastuti Krismastuti,

Nuryatini Nuryatini

Publication year - 2010

Publication title -

indonesian journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.273

H-Index - 14

eISSN - 2460-1578

pISSN - 1411-9420

DOI - 10.22146/ijc.21538

Subject(s) - graphite furnace atomic absorption , chemistry , measurement uncertainty , tonic (physiology) , graphite , atomic absorption spectroscopy , standard uncertainty , analytical chemistry (journal) , food products , calibration curve , standard solution , mass spectrometry , food science , chromatography , detection limit , statistics , mathematics , medicine , physics , organic chemistry , quantum mechanics

The evaluation of uncertainty measurement in the determination of Fe content in powdered tonic food drink using graphite furnace atomic absorption spectrometry was carried out. The specification of measurand, source of uncertainty, standard uncertainty, combined uncertainty and expanded uncertainty from this measurement were evaluated and accounted. The measurement result showed that the Fe content in powdered tonic food drink sample was 569.32 µg/5g, with the expanded uncertainty measurement ± 178.20 µg/5g (coverage factor, k = 2, at confidende level 95%). The calibration curve gave the major contribution to the uncertainty of the final results.

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