Sequential injection titration method using second-order signals: determination of acidity in plant oils and biodiesel samples.


A new concept of flow titration is proposed and demonstrated for the determination of total acidity in plant oils and biodiesel. We use sequential injection analysis (SIA) with a diode array spectrophotometric detector linked to chemometric tools such as multivariate curve resolution-alternating least squares (MCR-ALS). This system is based on the evolution… (More)
DOI: 10.1016/j.talanta.2010.03.004


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