4.4 Article

DETERMINATION OF BASIC NITROGEN IN RESIDUES OF CRUDE OIL DISTILLATION USING ATR-FTIR AND CHEMOMETRIC METHODS

Journal

ANALYTICAL LETTERS
Volume 46, Issue 18, Pages 2879-2889

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2013.828299

Keywords

ATR-FTIR; Backward iPLS; Basic nitrogen; Chemometrics; Crude oil residues; Interval PLS; Synergy iPLS

Funding

  1. INCT - Bioanalitica
  2. CNPq
  3. CAPES
  4. FAPERGS
  5. CENPES/PETROBRAS

Ask authors/readers for more resources

A method for basic nitrogen determination in residues of crude oil distillation using infrared spectroscopy and chemometrics algorithms was developed. Interval partial least squares, synergy interval partial least squares, and backward interval partial least squares were evaluated for calibration model construction. The samples were divided into a calibration and prediction set containing 40 and 15 samples, respectively. The first derivative with a Savitzky-Golay filter and the mean centered data showed the best results and were used in all calibration models. The backward interval partial least squares algorithm with spectra divided in 60 intervals and combinations of 4 intervals (1407 to 1372; 1117 to 1082; 971 to 936; 914 to 879cm(-1)) showed the best root mean square error of prediction of 0.016wt%. This calibration model displayed a suitable correlation coefficient between reference and predicted values.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available