NDLI: Simultaneous Analysis of Hexaconazole, Myclobutanil, and Tebuconazole Residues in Apples and Soil by SPE Clean-Up and GC with Nitrogen

Content Provider	Springer Nature Link
Author	Deng, Zhubo Hu, Jiye Qin, Dongmei Li, Hui
Copyright Year	2010
Abstract	A facile and sensitive method utilizing capillary gas chromatography with nitrogen phosphorus detection (GC–NPD) has been developed and validated for simultaneous analysis of hexaconazole, myclobutanil, and tebuconazole, three broad-spectrum systemic fungicides, in apples and soil. Two samples were fortified with the three pesticides and subjected to ultrasonic extraction, followed by solid-phase extraction (SPE) to remove coextractives, before analysis by GC–NPD. SPE procedures were performed on PSA cartridges (500 mg, 3 mL), the analytes being eluted with n-hexane–acetone (9:1 v/v, 2 mL). Recovery of three pesticides from the fortified apple and soil samples ranged from 94.5 to 107.3% with relative standard deviations less than 9.7% at the three spike levels (0.01, 0.1, and 0.5 mg kg−1). Limits of quantification of the method for apple and soil were 0.01 mg kg−1, sufficiently below the maximum residue limits. Direct confirmation of the analytes in samples was achieved by gas chromatography–mass spectrometry (GC–MS).
Starting Page	679
Ending Page	684
Page Count	6
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	71
Issue Number	7-8
e-ISSN	16121112
Language	English
Publisher	Vieweg Verlag
Publisher Date	2010-04-17
Publisher Place	Wiesbaden
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gas chromatography–nitrogen phosphorus detection Solid-phase extraction Hexaconazole Myclobutanil Tebuconazole Measurement Science and Instrumentation Plant Sciences Biochemistry Pharmacy Organic Chemistry Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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