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Rapid screening of inorganic and organic anions in liquid by‐products from hydrothermal treatment of biomass by capillary electrophoresis
Author(s) -
Nakatani Nobutake,
Mosqueda Alexander,
Cabot Joan Marc,
Rodriguez Estrella Sanz,
Yoshikawa Kunio,
Paull Brett
Publication year - 2018
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.201700366
Subject(s) - capillary electrophoresis , hydrothermal circulation , chemistry , biomass (ecology) , capillary action , electrophoresis , chromatography , conductivity , analytical chemistry (journal) , chemical engineering , materials science , oceanography , engineering , composite material , geology
A simple and rapid capillary electrophoresis method with capacitively coupled contactless conductivity detection (CE‐C 4 D) for the simultaneous determination of inorganic and organic anions in liquid product obtained from the hydrothermal treatment of biomass residues is presented. Under the optimal analytical conditions, limits of detection ranged from 1.8 to 9.4 μM for most target solutes and 53 μM for citrate. Relative standard deviations were below 0.5% for migration times and within 0.6–6.5% for peak areas for all solutes. The proposed method was successfully applied for the rapid determination and screening of inorganic and organic anions in liquid product produced following differing hydrothermal treatment temperatures for banana and pineapple biomass, and the contribution of organic acid formation to acidity in the liquid was evaluated. CE‐C 4 D could be a suitable method for the optimization or tailoring of HTT conditions for desired liquid product composition, and additionally for determination of the best variety(s) of biomass to use in such processes.