NDLI: Inside-Needle Extraction Method Based on Molecularly Imprinted Polymer for Solid-Phase Dynamic Extraction and Preconcentration of Triazine Herbicides Followed by GC

Content Provider	Springer Nature Link
Author	Djozan, Djavanshir Farajzadeh, Mir Ali Sorouraddin, Saeed Mohammad Baheri, Tahmineh rouzi, Jamal
Copyright Year	2012
Abstract	An inside-needle extraction method was developed through thermal polymerization of atrazine-molecularly imprinted polymer (MIP) on the internal surface of a stainless steel hollow needle, which was oxidized and silylated. The fabricated coating (MIP layer) for the needle was durable and showed very good chemical and thermal stability. It could be mounted on a glass syringe and be directly coupled with gas chromatographic (GC) systems. The parameters being effective on the coating and extraction processes, namely nature of oxidizing agent, silylation time, nature and amount of porogen, template-to-MIP components ratio, polymerization time and temperature, sample volume, flow rate, pH and ionic strength of the sample were investigated and optimized. The extraction needle showed high selectivity as well as a great extraction capacity for triazines. The extraction of atrazine, simazine, cyanazine, ametryn, prometryn and terbutryn using the fabricated extraction needle and followed by GC analysis resulted in detection limits of 2.6, 21, 24, 32, 38 and 42 ng mL−1, respectively. The fabricated needle proved to be applicable to the analysis of real samples by comparing the results obtained for non-spiked and spiked samples of grape juice, tap water and groundwater.
Starting Page	139
Ending Page	148
Page Count	10
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	75
Issue Number	3-4
e-ISSN	16121112
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-01-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Stainless steel extraction needle Molecularly imprinted polymer Solid-phase dynamic extraction Gas chromatography Atrazine Proteomics Analytical Chemistry Pharmacy Organic Chemistry Biochemistry Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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