Authors:
Puiu Diana, Scutariu Roxana, Iancu Vasile, Tatarus Alina, Niculescu Marcela, Galaon Toma
Puiu Diana, Scutariu Roxana, Iancu Vasile, Tatarus Alina, Niculescu Marcela, Galaon Toma
Conference: International Symposium “The Environment and the Industry”
Date: 26-27 September 2019
Location: Bucharest, Romania
Published: 2019
Keywords:
Acidic herbicides
Pyridiyncarboxylic acid
Derivatization
GC-MS/MS
Solid phase extraction
Abstract:
GC-MS/MS method are often used in analytical determination of pesticides due to its high sensitivity, compounds selectivity and good separation. Auxin pyridine herbicides as clopyralid, dicamba, triclopyr and fluroxypyr are polar compounds which require structural modifications in order to be volatilized and then separated on most used capillary columns. Because there are limited applications of in-port derivatizations and GC-MS/MS detections of these herbicides, a new method for these compounds was developed. Silylation reactions, especially with MTBSTFA, are mainly chose as an alternative to alkylation in order to avoid secondary interference products. The above mentioned compounds are usually found in environmental samples, like surface water, soil and biota.