A multiresidue analytical method for the detection of seven triazolopyrimidine sulfonamide herbicides in cereals, soybean and soil using the modified QuEChERS method and UHPLC-MS/MS. Issue 23 (30th October 2015)

• Record Type: Journal Article
• Authors: Xu, Jun; Zhang, Jingge; Dong, Fengshou; Liu, Xingang; Zhu, Guangyan; Zheng, Yongquan
• Is Part Of: Analytical methods. Volume 7:Issue 23(2015)
• Page Start: 9791
• Page End: 9799
• Publication Date: 2015-10-30
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/c5ay01622c
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : The combined use of modified QuEChERS extraction and UHPLC-MS/MS for determining all seven triazolopyrimidine sulfonamide herbicides in cereals (wheat, rice, and corn), soybean and soil was developed. Abstract : The combined use of modified QuEChERS extraction and ultra high-performance chromatography-tandem mass spectrometry (UHPLC-MS/MS) for determining all seven triazolopyrimidine sulfonamide herbicides in cereals (wheat, rice, and corn), soybean and soil was developed. The seven herbicides (metosulam, flumetsulam, pyroxsulam, florasulam, diclosulam, cloransulam-methyl and penoxsulam) were extracted using acetonitrile from five matrices, and then cleaned up using octadecylsilane or Florisil prior to UHPLC-MS/MS. The method has excellent linearity ( R 2 ≥ 0.996). The average recoveries in wheat, rice, corn, soybean and soil at three spiked concentrations (0.005, 0.010 and 0.10 mg kg −1 ) ranged from 73.8% to 113.2% with all RSD values less than 17.5%. The LOQs for seven herbicides were 0.005 mg kg −1 in cereals, soybean and soil. This method has been demonstrated to be reliable and convenient for monitoring triazolopyrimidine sulfonamide herbicides.