Determination of the iodine value of biodiesel using 1H NMR with 1,4-dioxane as an internal standard

被引：18

作者：

Oromi-Farrus, Mireia ^{[1
]}

Villorbina, Gemma ^{[1
]}

Eras, Jordi ^{[1
]}

Gatius, Ferran ^{[1
]}

Torres, Merce ^{[2
]}

Canela, Ramon ^{[1
]}

机构：

[1] Univ Lleida, Dept Chem, Lleida 25198, Spain

[2] Univ Lleida, Dept Food Technol, UTPV Certa, Lleida 25198, Spain

来源：

FUEL | 2010年 / 89卷 / 11期

关键词：

Biodiesel; Iodine value; H-1 NMR spectroscopy; Internal standard; NUCLEAR-MAGNETIC-RESONANCE; OILS; FATS; SPECTROSCOPY; UNSATURATION;

D O I：

10.1016/j.fuel.2010.06.016

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Iodine values (IVs) of some biodiesel samples were analyzed using both H-1 NMR and a standard iodometric method. H-1 NMR was carried out with and without 1,4-dioxane as an internal standard (IS). The results obtained using H-1 NMR with 1,4-dioxane as an internal standard showed better linear fitting and correlation with the iodometric method than NMR without the IS. The proposed H-1 NMR_IS method allows determination of the IV using smaller samples than the iodometric method. Moreover, the determination can be carried out in less than 15 min, dramatically less than the time needed to carry out the iodometric method. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3489 / 3492

页数：4

共 21 条

[11] DETERMINATION OF UNSATURATION AND AVERAGE MOLECULAR WEIGHT OF NATURAL FATS BY NUCLEAR MAGNETIC RESONANCE
JOHNSON, LF
SHOOLERY, JN
[J]. ANALYTICAL CHEMISTRY, 1962, 34 (09) : 1136 - &
[12] Determination of the fatty acid profile by 1H-NMR spectroscopy
Knothe, G
Kenar, JA
[J]. EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY, 2004, 106 (02) : 88 - 96
[13] Technical aspects of biodiesel production by transesterification - a review
Meher, LC
Sagar, DV
Naik, SN
[J]. RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2006, 10 (03) : 248 - 268
[14] Rapid determination of iodine value by 1H nuclear magnetic resonance spectroscopy
Miyake, Y
Yokomizo, K
Matsuzaki, N
[J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1998, 75 (01) : 15 - 19
[15] Determination of biodiesel blend levels in different diesel samples by 1H NMR
Monteiro, M. R.
Ambrozin, A. R. P.
Liao, L. M.
Ferreira, A. G.
[J]. FUEL, 2009, 88 (04) : 691 - 696
[16] Nielsen L. V., 1976, Milchwissenschaft, V31, P598
[17] PAQUOT C, 1979, STANDARD METHODS A 1, P66
[18] DETERMINATION OF THE IODINE VALUE OF OILS AND FATS - RESULTS OF A COLLABORATIVE STUDY
POCKLINGTON, WD
[J]. PURE AND APPLIED CHEMISTRY, 1990, 62 (12) : 2339 - 2343
[19] ROSSEL GB, 1987, ANAL OILS FATS, P10
[20] Schober S., 2007, Lipid Technol, V19, P281, DOI [DOI 10.1002/LITE.200700091, 10.1002/lite.200700091]

← 1 2 3 →