Flow Modulated Comprehensive Two-Dimensional Gas Chromatography Part I - Low Duty Cycle Modulation of Hidroprocessed Vegetable Oil

Author(s)

Passini, Rodrigo ^[1] ; Pierone, Danilo ^[2] ; Gobbi, Angelo L. ^[1] ; Hantao, Leandro W. ^{[1, 3]}

Affiliation

^[1] CNPEM, Lab Nacl Nanotecnol LNNano, Polo Alta Tecnol 2, R Giuseppe Maximo Scolfaro 10000, BR-13083970 Campinas, SP - Brazil

^[2] Nova Analit, Rua Assungui 432, BR-04131000 Sao Paulo, SP - Brazil

^[3] Univ Estadual Campinas, Inst Quim, R Josue de Castro 126, Cidade Univ, BR-13083861 Campinas, SP - Brazil

• Document type: Journal article
• Source: BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY; v. 6, n. 24, p. 74-81, JUL-SEP 2019.
• Web of Science Citations: 0

Abstract

In this paper, we report the quantitation of hydroprocessed vegetable oil (HVO) in petroleum diesel and biodiesel blends. To accomplish this goal. we have developed a low-pressure interface using commercially available components from original equipment manufacturer (OEM) SGE / Trajan Scientific and Medical. The low duty cycle modulation was optimized using a multivariate approach by investigating three important parameters, namely, flush period, auxiliary gas flow, and dimension of restrictor capillary (i.e., bleed). A 5-fold reduction in analysis time was accomplished, while maintaining the group-type separations by exploiting short modulation period. Successful quantitation of HVO was attained due to the inherent low sensitivity of the interface allowing for a wide linear range from 1.0% (w/w) to 100.0% (w/w). The current low pressure and low duty cycle interface exhibits simple and robust operation being particularly suited for fuel analysis. (AU)

• FAPESP's process: 15/05059-9 - Development and evaluation of Consumable-free planar microfluidic modulators for comprehensive two-dimensional gas chromatography
• Grantee: Leandro Wang Hantao
• Support Opportunities: Regular Research Grants
• FAPESP's process: 17/25490-1 - Synthesis and application of ionic liquids to unveil the chemistry of fermentative processes
• Grantee: Leandro Wang Hantao
• Support Opportunities: Regular Research Grants