干旱区生态环境知识资源中心(Arid): Activated carbon from avocado seed as sorbent phase for microextraction technologies: activation, characterization, and analytical performance

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DOI	10.1007/s00216-024-05203-1
	Activated carbon from avocado seed as sorbent phase for microextraction technologies: activation, characterization, and analytical performance
	Molina-Balmaceda, Alejandra; Rojas-Candia, Valentina; Arismendi, Daniel; Richter, Pablo
通讯作者	Richter, P
来源期刊	ANALYTICAL AND BIOANALYTICAL CHEMISTRY
ISSN	1618-2642
EISSN	1618-2650
出版年	2024
卷号	416 期号:10 页码:2399-2409
英文摘要	According to green analytical chemistry principles, the use of agricultural byproducts as sorbent phases is an interesting topic due to their lignocellulosic origin, as they are biodegradable and inexpensive. To the best of our knowledge, this is the first study in which avocado seed and avocado seed activated carbon are proposed as sustainable sorbents for solid-phase microextraction technologies, which were used to assess the proof of concept. Rotating disk sorptive extraction (RDSE) was used as a model technology and ibuprofen (Ibu) and 1-hydroxy-ibuprofen (1-OH-Ibu) as representative analytes. It was found that activated carbon (AC) prepared at 600 degrees C with an impregnation ratio (raw material/activating agent (ZnCl2), w/w) of 1:1.2 had better extraction efficiency than other ACs obtained at different temperatures, impregnation ratios, and activating agents (K2CO3). Characterization revealed several differences between natural avocado seed, biochar prepared at 600 degrees C, and selected AC since the typical functional groups of the natural starting material begin to disappear with pyrolysis and increasing the surface area and pore volume, suggesting that the main interactions between analytes and the sorbent material are pore filling and pi-pi stacking. By using this AC as the sorbent phase, the optimal extraction conditions in RDSE were as follows: the use of 50 mg of sorbent in the disk, 30 mL of sample volume, pH 4, 90 min of extraction time at a rotation velocity of the disk of 2000 rpm, and methanol as the elution solvent. The extracts were analyzed via gas chromatography coupled to mass spectrometry (GC-MS). The method provided limits of detection of 0.23 and 0.07 mu g L-1 and recoveries of 81% and 91% for Ibu and 1-OH-Ibu, respectively. When comparing the extraction efficiency of the selected activated carbon with those provided by Oasis (R) HLB and C18 in RDSE, nonsignificant differences were observed, indicating that avocado seed activated carbon is a suitable alternative to these commercial materials.
英文关键词	Avocado seed Activated carbon Rotating disk sorptive extraction Emerging contaminants
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001169393700001
WOS关键词	REMOVAL
WOS类目	Biochemical Research Methods ; Chemistry, Analytical
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402818
推荐引用方式 GB/T 7714	Molina-Balmaceda, Alejandra,Rojas-Candia, Valentina,Arismendi, Daniel,et al. Activated carbon from avocado seed as sorbent phase for microextraction technologies: activation, characterization, and analytical performance[J],2024,416(10):2399-2409.
APA	Molina-Balmaceda, Alejandra,Rojas-Candia, Valentina,Arismendi, Daniel,&Richter, Pablo.(2024).Activated carbon from avocado seed as sorbent phase for microextraction technologies: activation, characterization, and analytical performance.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,416(10),2399-2409.
MLA	Molina-Balmaceda, Alejandra,et al."Activated carbon from avocado seed as sorbent phase for microextraction technologies: activation, characterization, and analytical performance".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 416.10(2024):2399-2409.