TY - JOUR
T1 - Multivariate optimization of chlorinated hydrocarbons’ micro-solid-phase extraction from wastewater using germania-decorated mesoporous alumina-silica sorbent and analysis by GC–MS
AU - Tanimu, Abdulkadir
AU - Muhammad Sajid Jillani, Shehzada
AU - Ganiyu, Saheed A.
AU - Chowdhury, Shakhawat
AU - Alhooshani, Khalid
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/1
Y1 - 2021/1
N2 - The need for clean and accessible drinking water in several parts of the world is continuously becoming alarming due to the increased rate of industrialization that results in polluting water bodies. Chlorinated hydrocarbons (CHCs) form an important class of these pollutants. In this study, a new set of sorbents based on germania decorated mesoporous alumina-silica were utilized to extract and analyze twelve different CHCs that are usually found in wastewater bodies. The sorbents were characterized using XRD, FTIR, BET and FESEM. The extraction parameters were optimized using the Taguchi experimental design, analysis of variance (ANOVA) and signal-to-noise response. The sorbent dosage of 5 mg, extraction time of 20 min, desorption time of 20 min and methanol solvent were the optimized extraction parameters. A wide linear range of 1 – 800 ng mL−1 with determination coefficient of 0.9919 – 0.9993 was observed. Detection limit (LOD) and high reproducibility (%RSD) were obtained within the ranges of 0.14 – 0.45 ng mL−1 and 1.1 – 9.5% respectively. The relative recoveries from the wastewater samples were in the range 85.0 – 114%.
AB - The need for clean and accessible drinking water in several parts of the world is continuously becoming alarming due to the increased rate of industrialization that results in polluting water bodies. Chlorinated hydrocarbons (CHCs) form an important class of these pollutants. In this study, a new set of sorbents based on germania decorated mesoporous alumina-silica were utilized to extract and analyze twelve different CHCs that are usually found in wastewater bodies. The sorbents were characterized using XRD, FTIR, BET and FESEM. The extraction parameters were optimized using the Taguchi experimental design, analysis of variance (ANOVA) and signal-to-noise response. The sorbent dosage of 5 mg, extraction time of 20 min, desorption time of 20 min and methanol solvent were the optimized extraction parameters. A wide linear range of 1 – 800 ng mL−1 with determination coefficient of 0.9919 – 0.9993 was observed. Detection limit (LOD) and high reproducibility (%RSD) were obtained within the ranges of 0.14 – 0.45 ng mL−1 and 1.1 – 9.5% respectively. The relative recoveries from the wastewater samples were in the range 85.0 – 114%.
KW - Alumina
KW - Chlorinated hydrocarbons
KW - Germania
KW - Silica
KW - Taguchi design
KW - Wastewater
UR - http://www.scopus.com/inward/record.url?scp=85095439136&partnerID=8YFLogxK
U2 - 10.1016/j.microc.2020.105674
DO - 10.1016/j.microc.2020.105674
M3 - Article
AN - SCOPUS:85095439136
SN - 0026-265X
VL - 160
JO - Microchemical Journal
JF - Microchemical Journal
M1 - 105674
ER -