title: Determination of Prometryn in Vetiver Grass and Water Using Gas Chromatography-Nitrogen Chemiluminescence Detection.
abstract: Nitrogen chemiluminescence detector (NCD) is a nitrogen-specific detector that responds to ammonia, hydrazine, hydrogen cyanide and nitrogen oxide. A method to analyze the herbicide prometryn in plant and water samples was developed using gas chromatograph (GC) coupled with NCD. Extracts from plant (vetiver grass) and water matrices were analyzed for prometryn using an Agilent 7890A GC coupled with an Agilent 255 NCD in a split injection mode with a ratio of 2 : 1. Separation was carried out at 200°C and combustion at 1,018°C with H2 and O2 following optimized method development conditions. The percent recovery of prometryn in the two different matrices tested ranged from 81 to 107%, with relative standard deviations varying from 0.10 to 3.30% for spiked samples. Detection limit of the proposed method was 0.02 µg mL(-1) and the limit of quantification was 0.06 µg mL(-1). The proposed GC-NCD method was successfully applied to determine prometryn extracted from plant and water samples without potential interference of S-triazine, a pesticide from the same group.
authors.affiliation: Yunnan Agricultural University, Kunming 650201, China Southwest Forestry University, Kunming 650224, China.
authors.forename: Shixian
authors.initials: S
authors.lastname: Sun
authors.affiliation: Yunnan Agricultural University, Kunming 650201, China.
authors.forename: Yongmei
authors.initials: Y
authors.lastname: Li
authors.affiliation: Yunnan Import and Export Inspection and Quarantine Bureau, Kunming 650228, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Lv
authors.affiliation: Department of Earth and Environmental Studies, PhD Program in Environmental Management, Montclair State University, Montclair, NJ 07043, USA.
authors.forename: Pravin
authors.initials: P
authors.lastname: Punamiya
authors.affiliation: Department of Earth and Environmental Studies, PhD Program in Environmental Management, Montclair State University, Montclair, NJ 07043, USA.
authors.forename: Dibyendu
authors.initials: D
authors.lastname: Sarkar
authors.affiliation: Yunnan Import and Export Inspection and Quarantine Bureau, Kunming 650228, China.
authors.forename: Youming
authors.initials: Y
authors.lastname: Dan
authors.affiliation: Yunnan Agricultural University, Kunming 650201, China.
authors.forename: Junrong
authors.initials: J
authors.lastname: Ma
authors.affiliation: Yunnan Agricultural University, Kunming 650201, China Southwest Forestry University, Kunming 650224, China zhengyi@swfu.edu.cn.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zheng
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D049930:Chrysopogon / Q000737:chemistry*; D006540:Herbicides / Q000032:analysis*; D008163:Luminescent Measurements / Q000379:methods*; D009584:Nitrogen / Q000737:chemistry; D011400:Prometryne / Q000032:analysis*
chemical_list: D006540:Herbicides; D011400:Prometryne; D009584:Nitrogen