Abstract
Application of biochar-based fertilizers is increasingly being considered for its potential agronomic and environmental benefits. However, biochar may contain residues of polycyclic aromatic hydrocarbons (PAHs) as a result of its production by pyrolysis. The strong adsorption of PAHs to biochar makes extraction and analysis of biochar-based fertilizers difficult. This study optimizes the extraction of PAHs in biochar-based fertilizer samples by using an ultrasonic bath for quantification by gas chromatography–mass spectrometry. Among 12 solvents, acetone–cyclohexane (1:1) mixture was selected as the optimum solvent for extraction. Three variables affecting the extraction were studied by Box–Behnken design. The optimum conditions were 57 °C extraction temperature, 81 min extraction time, and two extraction cycles, which were validated by assessing the linearity of analysis, LOD, LOQ, recovery, and levels of PAHs in real biochar-based fertilizer samples. Results revealed that the 16 U.S. EPA PAHs had good linearity, with squared correlation coefficients greater than 0.99. LODs were low, ranging from 2.2 ng g−1 (acenaphthene) to 23.55 ng g−1 (indeno[1,2,3-cd]perylene), and LOQs varied from 7.51 ng g−1 to 78.49 ng g−1. The recoveries of 16 individual PAHs from the three biochar-based fertilizer samples were 81.8–109.4 %.

Use of RSM to optimize UAE for extraction of the PAHs in biochar-based fertilizer


Similar content being viewed by others
Explore related subjects
Discover the latest articles and news from researchers in related subjects, suggested using machine learning.References
Lehmann J (2007) Nature 447:143–144
Asai H, Samson BK, Stephan HM, Songyikhangsuthor K, Homma K, Kiyono Y, Inoue Y, Shiraiwa T, Horie T (2009) Field Crop Res 111:81–84
Hale SE, Lehmann J, Rutherford D, Zimmerman AR, Bachmann RT, Shitumbanuma V, O’Toole A, Sundqvist KL, Arp HPH, Cornelissen G (2012) Environ Sci Technol 46:2830–2838
Beesley L, Moreno-Jimenez E, Gomez-Eyles JL, Harris E, Robinson B, Sizmur T (2011) Environ Pollut 159:3269–3282
Li Z, Romanoff LC, Trinidad DA, Pittman EN, Hilton D, Hubbard K, Carmichael H, Parker J, Calafat AM, Sjodin A (2014) Anal Bioanal Chem 406:3119–3129
Stader C, Beer FT, Achten C (2013) Anal Bioanal Chem 405:7041–7052
Hilber I, Blum F, Leifeld J, Schmidt HP, Bucheli TD (2012) J Agric Food Chem 60:3042–3050
Fabbri D, Rombolà AG, Torri C, Spokas KA (2013) J Anal Appl Pyrol 103:60–70
Kusmierz M, Oleszczuk P (2014) Environ Sci Pollut Res Int 21:3646–3652
Net S, Dumoulin D, El-Osmani R, Delcourt V, Bigan M, Ouddane B (2014) Appl Geochem 40:126–134
Hu X, Zhou Q (2011) Chromatographia 74:489–495
Xie S, Paau MC, Li CF, Xiao D, Choi MM (2010) J Chromatogr A 1217:2306–2317
Santos MDR, Cerqueira MRF, de Oliveira MAL, Matos RC, Matos MAC (2014) Anal Methods 6:1650
Krugly E, Martuzevicius D, Sidaraviciute R, Ciuzas D, Prasauskas T, Kauneliene V, Stasiulaitiene I, Kliucininkas L (2014) Atmos Environ 82:298–306
Wu G, Kechavarzi C, Li X, Sui H, Pollard SJ, Coulon F (2013) Chemosphere 90:2240–2246
Banjoo DR, Nelson PK (2005) J Chromatogr A 1066:9–18
Chen P, Zhou H, Gan J, Sun M, Shang G, Liu L, Shen G (2015) J Sep Sci 38:864–870
Gilgenast E, Boczkaj G, Przyjazny A, Kamiński M (2011) Anal Bioanal Chem 401:1059–1069
Chmiel T, Abogado D, Wardencki W (2014) Anal Bioanal Chem 406:4965–4986
Assoumani A, Margoum C, Guillemain C, Coquery M (2014) Anal Bioanal Chem 406(11):2559–2570
Zavalloni C, Alberti G, Biasiol S, Vedove GD, Fornasier F, Liu J, Peressotti A (2011) Appl Soil Ecol 50:45–51
Schimmelpfennig S, Glaser B (2012) J Environ Qual 41:1001–1013
Baronti S, Alberti G, Delle Vedove G, Di Gennaro F, Fellet G, Genesio L, Miglietta F, Peressotti A, Vaccari FP (2010) Ital J Agron 5:3–12
Martinez E, Gros M, Lacorte S, Barceló D (2004) J Chromatogr A 1047:181–188
Wang Y, Wang L, Fang G, Herath HM, Wang Y, Cang L, Xie Z, Zhou D (2013) Environ Pollut 172:86–93
Jonker MT, Koelmans AA (2002) Environ Sci Technol 36:4107–4113
Brown RA, Kercher AK, Nguyen TH, Nagle DC, Ball WP (2006) Org Geochem 37:321–333
Schantz MM, Nichols JJ, Wise SA (1997) Anal Chem 69:4210–4219
Smedes F, de Boer J (1997) TrAC Trends Anal Chem 16:503–517
Song X, Li J, Liao C, Chen L (2011) Chromatographia 74:89–98
Acknowledgments
This study was supported by General Administration of Quality Supervision, Inspection and Quarantine Public Benefit Research Foundation (201310269), National Natural Science Foundation of China (No. 21477075), National Science and Technology pillar program (2012BAD15B03), Shanghai Agricultural Commission (Grant no. 2015-4-1), Science and Technology Commission of Shanghai Municipality (13dz1913500).The authors thank Yifei Shen and Sisi Yang for assistance in analyzing PAH samples.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, P., Sun, M., Zhu, Z. et al. Optimization of ultrasonic-assisted extraction for determination of polycyclic aromatic hydrocarbons in biochar-based fertilizer by gas chromatography–mass spectrometry. Anal Bioanal Chem 407, 6149–6157 (2015). https://doi.org/10.1007/s00216-015-8790-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00216-015-8790-3


