pH-controlled charge transfer sensitive 2-aminobenzimidazole modified poly(styrene-co-maleic anhydride) copolymer for selective extraction, pre-concentration and determination of trace Hg2+ and CH3Hg+ in vinegar by combination of ultrasound assisted-cloud point extraction with UV–VIS spectrophotometry

Zengin, Hacıbayram; Gürkan, Ramazan

pH-controlled charge transfer sensitive 2-aminobenzimidazole modified poly(styrene-co-maleic anhydride) copolymer for selective extraction, pre-concentration and determination of trace Hg2+ and CH3Hg+ in vinegar by combination of ultrasound assisted-cloud point extraction with UV–VIS spectrophotometry

dc.authorid	000-0003-3861-6671	tr
dc.authorid	0000-0003-0938-7697	tr
dc.contributor.author	Zengin, Hacıbayram
dc.contributor.author	Gürkan, Ramazan
dc.date.accessioned	2023-06-19T13:11:36Z
dc.date.available	2023-06-19T13:11:36Z
dc.date.issued	8 July 2022	tr
dc.department	Fen Fakültesi	tr
dc.description.abstract	In this study, a separation/pre-concentration procedure, ultrasound assisted-cloud point extraction with modified 2-aminobenzimidazole (2-ABzI), was developed for the extraction of trace Hg2+ and CH3Hg+ and from vinegar samples- modified copolymer coupled with Hg-binding chelator, 2-ABzI. The imidic copolymer was characterized, and used for detection of the enriched Hg species by spectrophotometer at 332 nm. The method is based on their pH-induced charge transfer sensitive complexation with copolymer matrix via 2-AmBzI moiety at pH 6.0 and 4.5, and their extraction into the mixed micellar phase of the mixed non-ionic/ionic surfactants as extractant/sensitivity enhancer. The variables influencing the extraction efficiency were optimized. From preconcentration of 25-mL sample, with a changing calibration sensitivity and pre-concentration factor of 62.5, a good rectilinear relationship between absorbance and concentrations of Hg species in ranges of 1–15, 15–150 μg L... 1 was obtained. The detection limits are 0.30 and 0.31 μg L... 1, respectively. Its precision/accuracy were in range of 3.1–7.6 % and 90.5–96 % after spiking (n: 5, for measurements of 5, 25 and 100 μg L in same day and three consecutive days). The matrix effect was also studied (n: 3, 100 μg L... 1). The method is simple, costeffective, fast, accurate, safe, highly stable and selective, which has successfully been applied to the speciation of mercury in vinegar.	tr
dc.description.abstract	In this study, a separation/pre-concentration procedure, ultrasound assisted-cloud point extraction with modified 2-aminobenzimidazole (2-ABzI), was developed for the extraction of trace Hg2+ and CH3Hg+ and from vinegar samples- modified copolymer coupled with Hg-binding chelator, 2-ABzI. The imidic copolymer was characterized, and used for detection of the enriched Hg species by spectrophotometer at 332 nm. The method is based on their pH-induced charge transfer sensitive complexation with copolymer matrix via 2-AmBzI moiety at pH 6.0 and 4.5, and their extraction into the mixed micellar phase of the mixed non-ionic/ionic surfactants as extractant/sensitivity enhancer. The variables influencing the extraction efficiency were optimized. From preconcentration of 25-mL sample, with a changing calibration sensitivity and pre-concentration factor of 62.5, a good rectilinear relationship between absorbance and concentrations of Hg species in ranges of 1–15, 15–150 μg 1 was obtained. The detection limits are 0.30 and 0.31 μg L... 1, respectively. Its precision/accuracy were in range of 3.1–7.6 % and 90.5–96 % after spiking (n: 5, for measurements of 5, 25 and 100 μg L.... 1 in same day and three consecutive days). The matrix effect was also studied (n: 3, 100 μg L... 1). The method is simple, costeffective, fast, accurate, safe, highly stable and selective, which has successfully been applied to the speciation of mercury in vinegar.	tr
dc.identifier.doi	10.1016/j.jfca.2022.104729	en_US
dc.identifier.endpage	104729	tr
dc.identifier.issn	0889-1575/
dc.identifier.scopus	2-s2.0-85134768450	en_US
dc.identifier.scopusquality	Q1
dc.identifier.startpage	104729	tr
dc.identifier.uri	https://hdl.handle.net/20.500.12418/13746
dc.identifier.volume	114	tr
dc.identifier.wos	WOS:000835489900017	en_US
dc.identifier.wosquality	Q2
dc.indekslendigikaynak	Web of Science	en_US
dc.indekslendigikaynak	Scopus	en_US
dc.language.iso	en	en_US
dc.publisher	Elsevier	tr
dc.relation.ispartof	Journal of Food Composition and Analysis	en_US
dc.relation.publicationcategory	Uluslararası Editör Denetimli Dergide Makale	tr
dc.rights	info:eu-repo/semantics/openAccess	tr
dc.subject	Hg2+/CH3Hg+ UA-CPE 2-ABzI-poly(SMAnh) 2-Aminobenzimidazole Vinegar UV–VIS spectrophotometry	tr
dc.subject	Hg2+/CH3Hg+ UA-CPE 2-ABzI-poly(SMAnh) 2-Aminobenzimidazole Vinegar UV–VIS spectrophotometry	tr
dc.title	pH-controlled charge transfer sensitive 2-aminobenzimidazole modified poly(styrene-co-maleic anhydride) copolymer for selective extraction, pre-concentration and determination of trace Hg2+ and CH3Hg+ in vinegar by combination of ultrasound assisted-cloud point extraction with UV–VIS spectrophotometry	en_US
dc.type	Article	en_US