# Multivariate optimization of ultrasound-assisted extraction using Doehlert matrix for simultaneous determination of Fe and Ni in vegetable oils by high-resolution continuum source graphite furnace atomic absorption spectrometry

> Research article (Food Chemistry, 2018) · cited 43× · AI/ML

**Wikidata**: [openalex:W2794165719](https://www.wikidata.org/wiki/openalex:W2794165719)  
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