Rapid Multi-Residue Method for Simultaneous Determination of 1,3,5-Triazine Herbicides in Environmental Samples by Capillary GC-MS-EI Selective Ion Monitoring Method

Separations

article

Perumal E. Ravi¹  Perumal E. Thirugnanam¹  Jothi Ramalingam Rajabathar²  Hamad Al-Lohedan²  S. Jenifer¹  Muthusamy Karnan³ 

[1] Department of Analytical Chemistry, International Institute of Biotechnology and Toxicology;Chemistry Department, College of Science, King Saud University;Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration

关键词: residues;    1;    3;    5-triazine;    herbicides;    GC-MS-EI;    groundwater;    soil;   

DOI  :  10.3390/separations10060363

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

A new multi-residue method using gas chromatography–mass spectrometry electron ionization selective ion monitoring mode (SIM) has been developed for the simultaneous determination of eight 1,3,5-triazine herbicides such as 1,3,5-triazine-2,4-diamine (atrazine), ametryn, prometryn, propazine, terbuthylazine, terbutryn, and simazine simetryn in water and soil samples. Quantification is done using lindane (gamma benzene hexachloride) as an internal standard. A specific Capillary DB-Wax column of 30 m length, 0.32 mm internal diameter, and 0.25 µm film thickness is used for the separation of eight 1,3,5-triazine-2,4-diamine. The method was applied for the determination of residues in groundwater and soil samples. The lowest detection limit by GC-MS-SIM (selective ion monitoring mode) is 0.1 pg/mL. Recovery in water samples is in the range of 93–103%, and in soil samples, 91–102% for different individual compounds. Forty-five groundwater and soil samples were collected in and around Kancheepuram district in Tamilnadu (India), and they were analyzed for the respective residues. A detailed discussion of the GC-MS analysis results has been presented.

【 授权许可】

CC BY